Seg High PROTEC MRMV4 Manual

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MANUAL

MRMV4

PROTECTION TECHNOLOGY

MADE SIMPLE

MOTOR PROTECTION

MANUAL MRMV4-3.7-EN-MAN

MOTOR PROTECTION

DM version: 3.7

English (Original document)

Revision D

Build 57242

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Summary of Contents for Seg High PROTEC MRMV4

Page 1 MANUAL PROTECTION TECHNOLOGY MADE SIMPLE MRMV4 MOTOR PROTECTION MOTOR PROTECTION DM version: 3.7 English (Original document) MANUAL MRMV4-3.7-EN-MAN Revision D Build 57242...
Page 2 E-mail: support@SEGelectronics.de   SEG Electronics GmbH reserves the right to update any portion of this publication at any time. Information provided by SEG Electronics GmbH is believed to be correct and reliable. However, no responsibility is assumed by SEG Electronics GmbH unless otherwise expressly undertaken.
Page 3: Table Of Contents
Table of Contents Table of Contents Safety Messages and Proper Use of the MRMV4 ........14█...
Page 4 Table of Contents 2.4.3 Connection Passwords, Smart view Access ..........65█...
Page 5 Table of Contents 3.6.1 TU – Voltage Measuring Inputs ............119█...
Page 6 Table of Contents 4.4.1 Application Example: Setting a Relay ..........169█...
Page 7 Table of Contents 5.2.5 Motor Cold / Warm Detection ............230█...
Page 8 Table of Contents 5.10.1 Commissioning: Current Unbalance Module ......... . . 308█...
Page 9 Table of Contents 5.20 Supervision ..............372█...
Page 10 Table of Contents 6.1.16 Withdrawable Fuse Load Switch ........... . . 411█...
Page 11 Table of Contents 11.3.1 General ............... 468█...
Page 12 Table of Contents 13.1.22 Fiber Optic Module with ST connector for SCADA Communication * ......487█ 13.1.23 Optical Ethernet Module with LC connector * .
Page 13 Table of Contents 14.2.3.3 Selection of standard information numbers in control direction ......520█...
Page 14: Safety Messages And Proper Use Of The Mrmv4
1 Safety Messages and Proper Use of the MRMV4 1.1 Important Definitions Safety Messages and Proper Use of the MRMV4 Important Definitions The types of messages shown below serve the safety of life and limb as well as for the appropriate operating life of the device.
Page 15 1 Safety Messages and Proper Use of the MRMV4 1.1 Important Definitions WARNING! Caution Sensitive Current Inputs This variant of the MRMV4 features sensitive inputs for measuring the ground (earth) current. (These are marked by an asterisk “*”.) The technical data of the sensitive ground (earth) measuring input are different from the technical data of the phase current measuring inputs.
Page 16: Proper Use Of The Device And Of This Manual
1 Safety Messages and Proper Use of the MRMV4 1.2 Proper Use of the Device and of This Manual Proper Use of the Device and of This Manual CAUTION! Do not put the MRMV4 in service until it has been configured and commissioned. Read the User Manual.
Page 17 The manufacturer cannot be held liable for any resulting damage, the user alone bears the risk for this. As to the appropriate use of the device: The technical data and tolerances specified by SEG have to be met. MRMV4-3.7-EN-MAN...
Page 18 1 Safety Messages and Proper Use of the MRMV4 1.2 Proper Use of the Device and of This Manual WARNING! Ensure that the actual overcurrent settings comply with the technical and thermal limits of the device, the CTs and the application! The MRMV4 allows for overcurrent settings that are out of the permitted range of current values.
Page 19: Personal Safety
1 Safety Messages and Proper Use of the MRMV4 1.3 Personal Safety Personal Safety DANGER! Ignoring the following safety messages can result in death or serious injury or physical damage. DANGER! Only qualified electricians may install, commission, work or operate this device. All national standards –...
Page 20: Important Information
1 Safety Messages and Proper Use of the MRMV4 1.4 Important Information Important Information NOTICE! The devices are manufactured and delivered according to the order code specified by the customer. The terminal assignment of the device can be found on the top of the device (wiring diagram).
Page 21: Mrmv4 - Motor Protection
2 MRMV4 – Motor Protection MRMV4 – Motor Protection The MRMV4 is a protection relay which uses the latest Dual-Core-Processor Technology to provide precise and reliable protective functions and is very easy to operate. The MRMV4 provides all necessary functions to protect low and medium voltage motors at all power levels.
Page 22: Comments On The Manual
(projecting) work, parameter setting or adjustment changes done by the customer. The warranty expires after a device has been opened by others than SEG specialists. Warranty and liability conditions stated in SEG General Terms and Conditions are not supplemented by the above-mentioned explanations.
Page 23 2 MRMV4 – Motor Protection 2.1 Comments on the Manual Structure of This Manual • Safety first! Make yourself familiar with the most important safety messages used throughout this manual: ╚═▷ “1 Safety Messages and Proper Use of the MRMV4”. Moreover, there is general information about the delivery scope (╚═▷...
Page 24 2 MRMV4 – Motor Protection 2.1 Comments on the Manual • In addition to the various protection functions, the MRMV4 also features various supervision functions. The main difference is that – contrast to a protection function – a supervision function does not issue any trip signal, but generates an alarm signal under special circumstances.
Page 25 2 MRMV4 – Motor Protection 2.1 Comments on the Manual ◦ MRMV4‑3.7‑EN‑IEC61850-Mics — IEC 61850 Model Implementation Conformance Statement (MICS) – [English only] ◦ MRMV4‑3.7‑EN‑IEC61850-Pics — IEC 61850 Protocol Implementation Conformance Statement (PICS) – [English only] ◦ MRMV4‑3.7‑EN‑IEC61850-Pixit — IEC 61850 Protocol Implementation Extra Information for Testing (PIXIT) –...
Page 26: Symbols And Definitions
2 MRMV4 – Motor Protection 2.1.1 Symbols and Definitions 2.1.1 Symbols and Definitions Connection Diagram that is Printed on the Housing There is a connection (wiring) diagram fixed onto the housing of the MRMV4. This diagram shows all terminals for this particular device variant. A table of the symbols that can appear in this diagram can be found here: ╚═▷...
Page 27: Legend For Wiring Diagrams
2 MRMV4 – Motor Protection 2.1.1.1 Legend for Wiring Diagrams 2.1.1.1 Legend for Wiring Diagrams In this legend designations of various device types are listed, e. g. transformer protection, motor protection, generator protection, etc. Therefore it can occur that not every designation actually appears on the wiring diagram of your device.
Page 28 2 MRMV4 – Motor Protection 2.1.1.1 Legend for Wiring Diagrams Only for use with external galvanic decoupled CTs. See chapter Current Only for use with external galvanic Transformers of the manual. decoupled CT’s. See chapter (See ╚═▷ “3.5.1 TI – Standard Phase and Ground Current Measuring Input Current Transformers of the manual! Card”.)
Page 29: Symbols In Function Diagrams
2 MRMV4 – Motor Protection 2.1.1.2 Symbols in Function Diagrams 2.1.1.2 Symbols in Function Diagrams Setting Values Prot . ExBlo TripCmd The upper box in the diagram on the left is the usual symbol of a setting value in a function diagram.
Page 30 2 MRMV4 – Motor Protection 2.1.1.2 Symbols in Function Diagrams Another remark: All diagrams in this document show a small label, for example the bottom one: “HPT_Y46”. This is the diagram name, i. e. a unique identifier for the diagram. Of course, this is not a setting name, nor any other part of the depicted logic.
Page 31 2 MRMV4 – Motor Protection 2.1.1.2 Symbols in Function Diagrams Hold time: This is a pulse which is triggered by name . the input (and in this case, the pulse duration is Trip duration time settable via parameter). The usual set of logic operators: AND, OR, eXclusive OR (from left to right).
Page 32: Information About The Device
2 MRMV4 – Motor Protection 2.2 Information About the Device Information About the Device Scope of Delivery The delivery scope includes: The transportation box The protective device The mounting nuts The test report Please check the consignment for completeness on arrival (delivery note). Please ascertain whether the type plate, connection diagram, type code and description of the device tally.
Page 33 2 MRMV4 – Motor Protection 2.2 Information About the Device Storage The devices must not be stored outdoors. The storing facilities have to be sufficiently ventilated and must be dry (see Technical Data, ╚═▷ “13.1 Technical Data”). Battery The purpose of the battery is to buffer the real-time clock in case of an outage of the protective device's power supply.
Page 34: Order Form Of The Device
2 MRMV4 – Motor Protection 2.2.1 Order Form of the Device 2.2.1 Order Form of the Device Motor Protection MRMV4 -2 # Housing Display Digital Binary Analog Interf. Inputs output Inputs / for ext. relays Outputs RTD Box LCD, 128 0 / 4 ✔...
Page 35 2 MRMV4 – Motor Protection 2.2.1 Order Form of the Device Motor Protection MRMV4 -2 # Harsh Environment Option None Conformal Coating Available menu languages English (USA) / German / Spanish / Russian / Polish / Portuguese (BR) / French / Romanian Miscellaneous Functions Control functions for 1 switchgear and logic up to 80 equations.
Page 36: Overview Of Assembly Groups
2 MRMV4 – Motor Protection 2.2.1.1 Overview of Assembly Groups 2.2.1.1 Overview of Assembly Groups The fitted assembly groups are as follows for the main variants: Typecode slot X1 slot X2 slot X3 slot X4 slot X5 slot X6 MRMV4-2A... DI-8 X1 AnO4 —...
Page 37: Communication Protocol Codes
2 MRMV4 – Motor Protection 2.2.1.2 Communication Protocol Codes 2.2.1.2 Communication Protocol Codes The following table lists the communication options from the Order Code (see ╚═▷ “2.2.1 Order Form of the Device”), together with the respective communication interfaces and protocols that are available with this order option. Interface Available Communication Protocols ―...
Page 38 2 MRMV4 – Motor Protection 2.2.1.2 Communication Protocol Codes Interface Available Communication Protocols RS485 terminals Modbus RTU, 60870‑5‑103, DNP3.0 RTU Ethernet 100MB / RJ45 61850, Modbus TCP, 60870‑5‑104, DNP3.0 TCP/UDP MRMV4 MRMV4-3.7-EN-MAN...
Page 39: Navigation - Operation
2 MRMV4 – Motor Protection 2.2.2 Navigation – Operation 2.2.2 Navigation – Operation The following illustration applies to protective devices with “B2” housing and a small display, in particular the MRMV4: 9 10 MRMV4-3.7-EN-MAN MRMV4...
Page 40: Front Panel Parts
2 MRMV4 – Motor Protection 2.2.2.1 Front Panel Parts 2.2.2.1 Front Panel Parts (1) Programmable LEDs Messages inform you about operational conditions, system data or other device particulars. They additionally provide you with information regarding failures and functioning of the device as well as other states of the device and the equipment. Various signals can be freely allocated to LEDs out of the »assignment list«.
Page 41 2 MRMV4 – Motor Protection 2.2.2.1 Front Panel Parts (8) USB Interface (Smart view Connection) Connection to the PC software Smart view can be done via this USB interface. (9) »OK« Key When using the »OK« key parameter changes are temporarily stored. If the »OK« key is pressed again, those changes are stored definitely.
Page 42: Softkey Symbols
2 MRMV4 – Motor Protection 2.2.2.2 Softkey Symbols 2.2.2.2 Softkey Symbols The following symbols are used to label the function of a Softkey: Softkey Meaning Via Softkey »up« you can scroll upwards. You go to the prior menu point/one parameter up by scrolling upwards.
Page 43: Modules, Settings, Signals And Values
2 MRMV4 – Motor Protection 2.3 Modules, Settings, Signals and Values Modules, Settings, Signals and Values The MRMV4 is a digital protection device that holds various data in its internal memory. Some data is meant to be changed by the user to adapt the functionality to the respective application, other data types are set by the device during run-time and are therefore read-only from the user's perspective.
Page 44 2 MRMV4 – Motor Protection 2.3 Modules, Settings, Signals and Values desirable to directly transfer the setting value from one device to another; the TCP/IP settings are an example for this.) There are several types of parameters, depending on the type of data they can hold. For the user, it is not necessary to know details, but it can be good to know that there are numerical parameters (e. g.
Page 45 2 MRMV4 – Motor Protection 2.3 Modules, Settings, Signals and Values Signals • Signals are run-time states, i. e. depend on the result of a protection function or on the state of a Digital Input. Signals are part of the “menu tree”. They can all be found in the menu path [Operation / Status Display].
Page 46 2 MRMV4 – Motor Protection 2.3 Modules, Settings, Signals and Values hold a digital, integer number. For most Counters, there is a related Direct Command, which can be used to reset the Counter value to 0. MRMV4 MRMV4-3.7-EN-MAN...
Page 47: Parameter Settings
2 MRMV4 – Motor Protection 2.3.1 Parameter Settings 2.3.1 Parameter Settings Parameter Setting at the HMI Every parameter belongs to an access area. Editing and changing of a parameter requires a sufficient access authorization. See ╚═▷ “2.4.4 Access Level Passwords” for a detailed description of access areas.
Page 48 2 MRMV4 – Motor Protection 2.3.1 Parameter Settings NOTICE! A star symbol in front of the changed parameters indicates that the modifications have only been saved temporarily, they are not yet finally stored and adopted by the device. In order to make things easier to follow, especially where complex parameter changes are involved, on every superior/higher-ranking menu level the intended change of the parameter is indicated by the star symbol (“star trace”).
Page 49 2 MRMV4 – Motor Protection 2.3.1 Parameter Settings Option 2: Context-dependent Access Authorization Navigate to the parameter, that is to be changed. If the parameter is selected, the lower right corner of the display shows a »Key«-Symbol. This symbol indicates, that the device is still within the »Read Only-Lv0« level (╚═▷...
Page 50 2 MRMV4 – Motor Protection 2.3.1 Parameter Settings NOTICE! Plausibility check: In order to prevent obvious wrong settings the device monitors constantly all temporary saved parameter changes. If the device detects an implausibility, this is indicated by a question mark in front of the respective parameter. In order to make things easier to follow up, especially where complex parameter changes are involved, on every superior/higher-ranking menu level, above the temporary saved parameters an invalidity is indicated by the question mark (plausibility trace).
Page 51: Setting Lock
2 MRMV4 – Motor Protection 2.3.1.1 Setting Lock Option Setting Group Switch Even if DI4 becomes inactive afterwards, parameter set 4 remains active, until there is a new distinct request (e. g. DI3 becomes active and all the other assignments are inactive) Via SCADA Switch over if there is a distinct SCADA request.
Page 52: Adaptive Parameter Sets
2 MRMV4 – Motor Protection 2.3.2 Adaptive Parameter Sets 2.3.2 Adaptive Parameter Sets By means of Adaptive Parameter Sets you can modify dynamically setting values within a protection module. NOTICE! Adaptive Parameter Sets are available only for a few protection modules (essentially only the overcurrent protection modules).
Page 53 2 MRMV4 – Motor Protection 2.3.2 Adaptive Parameter Sets Protection Para/Global Prot Para/I-Prot/I[1] ... Name Value ExBlo1 - . - ExBlo2 - . - ExBlo TripCmd - . - Ex rev Interl - . - AdaptSet 1 V[1] - 27, 59 . Alarm AdaptSet 2 - .
Page 54 2 MRMV4 – Motor Protection 2.3.2 Adaptive Parameter Sets ◦ Generator, motor, de-sensibilize current protection MRMV4 MRMV4-3.7-EN-MAN...
Page 55: Status Display
2 MRMV4 – Motor Protection 2.3.3 Status Display 2.3.3 Status Display In the status display within the »Operation« menu, the present state of all signals can be viewed. This means the User is able to see if the individual signals are active or inactive at that moment.
Page 56: Menu Structure
2 MRMV4 – Motor Protection 2.3.4 Menu Structure 2.3.4 Menu Structure The menu structure offers the following top-level menu entries. You enter a menu branch with Softkey ▶. Softkeys ▲ and ▼ let you navigate to the previous or next one. Operation Here you can find run-time data.
Page 57 2 MRMV4 – Motor Protection 2.3.4 Menu Structure • Global Protection Parameter • Set 1 … Set 4 • PSet-Switch (Switching Parameter Set) Control Settings for switchgear devices. Control • The HighPROTEC devices named “MR…” can control 1 switchgear device. (Exception: MRDT4: 2 devices.) •...
Page 58: Device Planning
The manufacturer does not accept liability for any personal or material damage as a result of incorrect planning. Contact your SEG Customer Service representative for more information. WARNING! Beware of the inadvertent deactivating of protective functions/modules, because all the settings of a deativated module get lost (i. e.
Page 59: Field Parameters
2 MRMV4 – Motor Protection 2.3.6 Field Parameters 2.3.6 Field Parameters Within the field parameters you can set all parameters that are relevant for the primary side and the mains operational method like frequency, primary and secondary values. All field parameters are accessible via the menu branch [Field Para]. See the Reference Manual for detailed tables of all settings that are available for the MRMV4.
Page 60: Device Parameters
2 MRMV4 – Motor Protection 2.3.7 Device Parameters 2.3.7 Device Parameters Date and Time In the menu [Device Para / Time] »Date and Time« you can set date and time (including a sub-menu for timezone and Daylight-Saving settings). Version Within the menu [Device Para / Version] you can obtain information on the software and hardware version.
Page 61: Reset Counters, Values And Records
2 MRMV4 – Motor Protection 2.3.8 Reset Counters, Values and Records 2.3.8 Reset Counters, Values and Records Manual Resets In menu [Operation / Reset] you can: • reset counters, • delete records (e. g. disturbance records) and • reset special things (like statistics, thermal replica...). NOTICE! Descriptions of the available reset commands can be found in a separate document, entitled “MRMV4 Reference Manual”.
Page 62: Security
2 MRMV4 – Motor Protection 2.4 Security Security General CAUTION! All security settings have to be made by the user of the MRMV4! It is strictly recommended that you adapt the security settings according to the local regulations and requirements at the end of the commissioning procedure. The MRMV4 is delivered with maximum “open”...
Page 63: Network Security
2 MRMV4 – Motor Protection 2.4.1 Network Security Security-Related Messages There is a special self-supervision recorder, named Self-Supervision Messages. It collects device-internal messages of various types, including security-related events (e. g. if a wrong password has been entered). It is recommended to check these entries from time to time.
Page 64: Passwords
2 MRMV4 – Motor Protection 2.4.2 Passwords 2.4.2 Passwords Password Types There are two different types of passwords: • Connection passwords enable the user to establish a connection with the operating software Smart view. (See ╚═▷ “2.4.3 Connection Passwords, Smart view Access”.) •...
Page 65: Connection Passwords, Smart View Access
Therefore all connections between MRMV4 and Smart view are fully encrypted, using state-of-the-art cryptographic algorithms. SEG provides each installation of Smart view (version 4.70 or later) and each individual HighPROTEC device (release 3.6 or later) with cryptographic certificates, which are automatically exchanged when the connection is being established.
Page 66 2 MRMV4 – Motor Protection 2.4.3 Connection Passwords, Smart view Access • Remote network connection — The “remote network connection password” has to be entered for establishing a Smart view access via Ethernet. (The default, however, is an empty value, but note that this access type is deactivated by default, ╚═▷...
Page 67: Access Level Passwords
2 MRMV4 – Motor Protection 2.4.4 Access Level Passwords 2.4.4 Access Level Passwords Access level passwords are required for any changes to the device settings, independent of whether the change is done via Smart view or directly at the HMI (panel). There is a security level –...
Page 68 You have to ensure that all passwords are activated again after the commissioning. That means, that all access areas have to be protected by sufficiently secure passwords. SEG will not take over any liability for any personal injuries or damages that are caused by deactivated password protection.
Page 69 2 MRMV4 – Motor Protection 2.4.5 Access Levels 2.4.5 Access Levels The access levels are designed in form of two hierarchic strands. The supervisor (administrator) password provides access to all parameters and settings. Supervisor-Lv3 Device Configuration Prot-Lv2 Control-Lv2 Protection Settings Control Settings Prot-Lv1 Control-Lv1...
Page 70 2 MRMV4 – Motor Protection 2.4.5 Access Levels Area Access Area Access to: Symbol “P.1” Password query on This password provides access to the reset and panel / Smart view: acknowledge options. In addition to that it permits changing of protection settings and the configuration of Prot-Lv2 the trip manager.
Page 71 2 MRMV4 – Motor Protection 2.4.5 Access Levels However, the common way during every-day-use of the MRMV4 is not to use this [Access Level] menu, but to simply enter the menu path of a parameter to be changed, then start editing the parameter;...
Page 72: Reset To Factory Defaults, Reset All Passwords
2 MRMV4 – Motor Protection 2.4.6 Reset to Factory Defaults, Reset All Passwords 2.4.6 Reset to Factory Defaults, Reset All Passwords There is a dedicated Reset dialog that allows for selecting any of the following options: • Reset to the factory defaults, or •...
Page 73 If the password should be lost and the »Reset all passwords« option has been made unavailable then the only chance to recover control is to reset the MRMV4 to factory default. If this option has been deactivated, too, then the MRMV4 has to be sent to SEG as a service request.
Page 74: Acknowledgments
2 MRMV4 – Motor Protection 2.5 Acknowledgments Acknowledgments The term “acknowledgment” means to reset the latching of a state. Latching can be configured for the the following types of objects or states: • LEDs • Binary output relays • SCADA signals •...
Page 75 2 MRMV4 – Motor Protection 2.5 Acknowledgments NOTICE! Note that any latched state can be acknowledged only if the signal that initiated the setting is no longer active. This is a general rule that applies to all acknowledgment types. Another general rule is that with the setting [Device Para / Acknowledge] »Remote Reset«...
Page 76 2 MRMV4 – Motor Protection 2.5 Acknowledgments [Device Para / Acknowledge] »Ack BO« ✔ Assigned signal acknowledges all binary output relays. [Device Para / Acknowledge] »Ack Scada« ✔ Assigned signal acknowledges latched SCADA signals. Automatic Acknowledgment With an automatic acknowledgment all those LEDs for which this is activated get acknowledged with a protection alarm or with a General Alarm, »Prot .
Page 77 2 MRMV4 – Motor Protection 2.5 Acknowledgments [Operation / Acknowledge] »Sys . Ack Scada« ✔ All SCADA signals [Operation / Acknowledge] »SG [x] . Ack TripCmd« ✔ Acknowledge the trip command of switchgear “SG [x]”. Remark: The menu branch does not show the abstract module name »SG [x]«. What you see instead is the switchgear designation that has been assigned via the Control Page (Single-Line diagram), i. e.
Page 78 2 MRMV4 – Motor Protection 2.5 Acknowledgments • “Ack LEDs w/o passw.” – The “long keypress“ acknowledges all LEDs, without any password entry. (This option is the factory default.) • “Ack LEDs” – The “long keypress“ acknowledges all LEDs (only the password will be asked for, see below).
Page 79: Measuring Values
2 MRMV4 – Motor Protection 2.6 Measuring Values Measuring Values Read out Measured Values In menu [Operation / Measured Values] both measured and calculated values can be viewed. The measured values are ordered by »standard values« and »special values« (depending on the type of device). Display Options Menu [Device Para / Measurem Display] offers options to change the display of measured values.
Page 80 2 MRMV4 – Motor Protection 2.6 Measuring Values Counter overflow at: Depends on the settings for the current and voltage • Energy Auto Scaling transformers 999 999.99 • kWh/kVArh/kVAh 999 999.99 • MWh/MVArh/MVAh 999 999.99 • GWh/GVArh/GVAh Temperature Unit (applies only for devices with temperature measurement) By means of the parameter [Device Para / Measurem Display / General Settings] »Temperature Unit«...
Page 81: Statistics
2 MRMV4 – Motor Protection 2.7 Statistics Statistics In the menu [Operation / Statistics], the min., max. and average values of the measured and calculated measured quantities can be found. 2.7.1 Configuration of the Minimum and Maximum Values The calculation of the minimum and maximum values is (re-)started with any of the following events: •...
Page 82: Configuration Of The Voltage-Based Average Value Calculation
2 MRMV4 – Motor Protection 2.7.2.2 Configuration of the Voltage-Based Average Value Calculation* • “Duration”: fixed or sliding period. The period duration is settable via »Duration I Demand«. • “StartFct”: The average values are calculated based on the time period between two rising edges of a signal that has been assigned to parameter »Start I Demand Fc«.
Page 83: Configuration Of The Power-Based Average Value Calculation
2 MRMV4 – Motor Protection 2.7.2.3 Configuration of the Power-Based Average Value Calculation* View the Voltage-Based Average Values Within the menu [Operation / Statistics] 2.7.2.3 Configuration of the Power-Based Average Value Calculation* *=Availability depends on the ordered device code. Configure the Time Period for the Calculation of the Average and Peak Values [Device Para / Statistics / Demand / Power Demand] »Window P Demand«...
Page 84: Smart View
2 MRMV4 – Motor Protection 2.8 Smart view Smart view Smart view is a parameter setting and evaluation software. It has a Technical Manual of its own. • Menu-controlled parameter setting incl. validity checks • Offline configuration of all relay types •...
Page 85 2 MRMV4 – Motor Protection 2.9 DataVisualizer • Convert downloaded waveform files to COMTRADE file format using “Export” feature MRMV4-3.7-EN-MAN MRMV4...
Page 86: Hardware
3 Hardware 3.1 Dimension Drawings Hardware Dimension Drawings Three-Side-View – 19” Variant NOTICE! Depending on the connection method of the SCADA system used the needed space (depth) differs. If, for instance, a D-Sub-Plug is used, it has to be added to the depth dimension.
Page 87 3 Hardware 3.1 Dimension Drawings 9.48 212.70 [0.37] [8.37] 4 × M 2.5 mm [7.17] screw max. 209.0 [max. 8.23] 179.50 [7.07] 198.12 [7.80] Fig. 4: 3-Side-View B2 Housing (19” Devices). (All dimensions in mm, except dimensions in brackets [inch].) Three-Side-View – Variant for Door Mounting NOTICE! Dependent on the connection method of the SCADA system used the needed space (depth) differs.
Page 88 3 Hardware 3.1 Dimension Drawings 9.48 212.70 [0.37] [8.37] [7.17] max. 209.0 [max. 8.23] 179.50 [7.07] Fig. 5: 3-Side-View B2 Housing (Devices with 8 Softkeys). (All dimensions in mm, except dimensions in brackets [inch].) Installation Diagram – Cutout for Door Mounting WARNING! Even when the auxiliary voltage is switched-off, unsafe voltages might remain at the device connections.
Page 89 3 Hardware 3.1 Dimension Drawings Fig. 6: B2 Housing Door Cut-out (8 Pushbutton Version). (All dimensions in mm, except dimensions in brackets [inch].) CAUTION! Be careful. Do not overtighten the mountings nuts of the relay (M4 metric 4 mm). Check the torque by means of a torque wrench (1.7 Nm [15 in⋅lb]).
Page 90: Mrmv4 - Installation And Wiring
3 Hardware 3.2 MRMV4 – Installation and Wiring MRMV4 – Installation and Wiring 3.2.1 Grounding WARNING! The housing must be carefully grounded. Connect a ground cable (protective earth, 4 to 6 mm² [AWG 11‒9], tightening torque 1.7 Nm [15 lb⋅in]) to the housing, using the screw that is marked with the ground symbol (at the rear side of the device).
Page 91: Overview Of Slots - Assembly Groups
3 Hardware 3.2.2 Overview of Slots – Assembly Groups 3.2.2 Overview of Slots – Assembly Groups NOTICE! The set of assembly groups (hardware cards) that the MRMV4 is fitted with depends on Order Form of the MRMV4. In each of the slots an assembly group can be integrated. A tabular overview is in chapter ╚═▷...
Page 92: Slot X1
3 Hardware 3.3 Slot X1 Slot X1 • Power Supply Card with Digital Inputs slot1 slot2 slot3 slot4 slot5 slot6 X104 X100 X101 X102 X103 Fig. 8: Rear side of the device (Slots) The type of power supply card and the number of digital inputs on it used in this slot is dependent on the ordered device type.
Page 93: Di8-X Power Supply And Digital Inputs
3 Hardware 3.3.1 DI8-X Power Supply and Digital Inputs 3.3.1 DI8-X Power Supply and Digital Inputs WARNING! In addition to the grounding of the housing (protective earth, see ╚═▷ “3.2.1 Grounding”) there must be an additional ground cable connected to the power supply card (functional earth, min.
Page 94 3 Hardware 3.3.1 DI8-X Power Supply and Digital Inputs Functional Earth L+ Power Supply n.c. COM1 COM2 COM3 Fig. 9: Terminals DI-8P X Functional Earth Power Supply n.c. COM1 COM2 COM3 COM3 Fig. 10: Electro-mechanical assignment This assembly group comprises: •...
Page 95 3 Hardware 3.3.1 DI8-X Power Supply and Digital Inputs • 2 digital inputs, non-grouped • Connector for the functional earth (which must be connected, see the “Warning” message above) Auxiliary Voltage Supply • The aux. voltage inputs (wide-range power supply unit) are non-polarized. The device can be supplied with AC or DC voltage.
Page 96 3 Hardware 3.3.1 DI8-X Power Supply and Digital Inputs • “230 VDC” • “110 VAC” • “230 VAC” If a voltage >80% of the set switching threshold is applied at the digital input, the state change is recognized (physically “1”). If the voltage is below 40% of the set switching threshold, the device detects physically “0”.
Page 97: Slot X2
3 Hardware 3.4 Slot X2 Slot X2 • Relay Output Card slot1 slot2 slot3 slot4 slot5 slot6 X104 X100 X101 X102 X103 Fig. 11: Rear side of the device (Slots) The type of card in this slot is dependent on the ordered device type.
Page 98: Assembly Group With 6 Output Relays
3 Hardware 3.4.1 BO-6 X - Assembly Group with 6 output relays 3.4.1 BO-6 X - Assembly Group with 6 output relays WARNING! Ensure the correct tightening torques (see diagram). Connection cross section: min. 0.25 mm² (AWG 23) … max. 2.5 mm² (AWG 14) with or without wire end ferrule.
Page 99 3 Hardware 3.4.1 BO-6 X - Assembly Group with 6 output relays BO-6 X BO1 NC BO1 C BO1 NO BO2 NC BO2 C BO2 NO BO3 NC BO3 C BO3 NO BO4 NC BO4 C BO4 NO BO5 NC BO5 C BO5 NO BO6 NC...
Page 100: Slot X3
3 Hardware 3.5 Slot X3 Slot X3 • CT – Current Transformer Measuring Inputs slot1 slot2 slot3 slot4 slot5 slot6 X104 X100 X101 X102 X103 Fig. 14: Rear side of the device (Slots) Available assembly groups in this slot: • TI: Phase and Ground Current Measuring Input Card, standard sensitivity. •...
Page 101: Ti - Standard Phase And Ground Current Measuring Input Card
3 Hardware 3.5.1 TI – Standard Phase and Ground Current Measuring Input Card 3.5.1 TI – Standard Phase and Ground Current Measuring Input Card This measuring card is provided with 4 current measuring inputs: three for measuring the phase currents and one for measuring of the earth current. Each of the current measuring inputs has a measuring input for 1 A and 5 A.
Page 102 3 Hardware 3.5.1 TI – Standard Phase and Ground Current Measuring Input Card WARNING! Use a torque limiting spanner, and adhere to the exact tightening torques: • Two screws for the input block: ◦ Torque: 0.3 Nm (2.65 lb⋅in) • Screws for the connection terminals: ◦...
Page 103 3 Hardware 3.5.1 TI – Standard Phase and Ground Current Measuring Input Card IL1-1A IL1-N IL1-5A IL2-1A IL2-N IL2-5A IL3-1A IL3-N IL3-5A IG-1A IG-N IG-5A Fig. 16: TI – Electro-mechanical assignment MRMV4-3.7-EN-MAN MRMV4...
Page 104: Tis - Phase And Sensitive Ground Current Measuring Card
3 Hardware 3.5.2 TIs – Phase and Sensitive Ground Current Measuring Card 3.5.2 TIs – Phase and Sensitive Ground Current Measuring Card The sensitive ground current measuring card “TIs” is provided with 4 current measuring inputs: three for measuring the phase currents and one for measuring of the earth current.
Page 105 3 Hardware 3.5.2 TIs – Phase and Sensitive Ground Current Measuring Card WARNING! Use a torque limiting spanner, and adhere to the exact tightening torques: • Two screws for the input block: ◦ Torque: 0.3 Nm (2.65 lb⋅in) • Screws for the connection terminals: ◦...
Page 106 3 Hardware 3.5.2 TIs – Phase and Sensitive Ground Current Measuring Card IL1-1A IL1-N IL1-5A IL2-1A IL2-N IL2-5A IL3-1A IL3-N IL3-5A IG-1A IG-N IG-5A Fig. 18: TIs – Electro-mechanical assignment MRMV4 MRMV4-3.7-EN-MAN...
Page 107: Current Transformers (Ct)
3 Hardware 3.5.3 Current Transformers (CT) 3.5.3 Current Transformers (CT) Check the installation direction. DANGER! It is imperative that the secondary sides of measuring transformers be grounded. DANGER! The current measuring inputs may exclusively be connected to current measuring transformers (with galvanic separation). WARNING! CT secondary circuits must always to be low burdened or short-circuited during operation.
Page 108: Current Transformer Connection Examples
3 Hardware 3.5.3.2 Current Transformer Connection Examples 3.5.3.2 Current Transformer Connection Examples IL1' IL2' IL3' Fig. 19: Three phase current measurement; In secondary = 5 A. MRMV4 MRMV4-3.7-EN-MAN...
Page 109 3 Hardware 3.5.3.2 Current Transformer Connection Examples I̲ L 1' I̲ L 2' I̲ L 1 I̲ L 3' I̲ L 2 I̲ G ' = IG meas I̲ L 3 Ring Core Type Current Transformer: Measures the ground current. (Sum of the three phase currents).
Page 110 3 Hardware 3.5.3.2 Current Transformer Connection Examples IL1' IL1' IL2' IL2' IL3' IL3' Fig. 21: Three phase current measurement; In secondary = 5 A. Earth-current measuring via Holmgreen-connection; IGnom secondary = 5 A. IL1' IL1' IL2' IL2' IL3' IL3' Fig. 22: Three phase current measurement;...
Page 111 3 Hardware 3.5.3.2 Current Transformer Connection Examples I̲ L 1' I̲ L 1' I̲ L 1 I̲ L 2' I̲ L 3' I̲ L 3' I̲ L 2 I̲ G ' I̲ L 3 Ring Core Type Current Transformer: Measures the ground current.
Page 112 3 Hardware 3.5.3.2 Current Transformer Connection Examples IL1' IL1' IL3' IL3' IL2' IL2' Fig. 24: Three phase current measurement; In secondary = 1 A. Earth-current measuring via Holmgreen-connection; IGnom secondary = 1 A. MRMV4 MRMV4-3.7-EN-MAN...
Page 113: Connecting The Current Inputs
3 Hardware 3.5.3.3 Connecting the Current Inputs 3.5.3.3 Connecting the Current Inputs The Phase and Ground Current Measuring Input Card supports both pin-terminal connections and ring-terminal connections. CAUTION! You have to follow national standards and directives. It might be that not all connection types are permissible in your country.
Page 114 3 Hardware 3.5.3.3 Connecting the Current Inputs For the ring-terminal connection type, there is one intermediate step to be done. Move the slider aside, so that the screws and metal contact become fully accessible. Every terminal consists of a screw with a non-losable metal contact.
Page 115: Ct Requirements
3 Hardware 3.5.3.4 CT Requirements 3.5.3.4 CT Requirements WARNING! In addition to the considerations in this chapter and the requirements mentioned, all applicable national and international standards and regulations have to be followed. Symbols The following table gives an overview of the symbols that are used in the CT requirement section.
Page 116 3 Hardware 3.5.3.4 CT Requirements Overcurrent Protection 20 or I , whatever is greater > Maximum of all threshold settings I (primary value) of all psc,max > active »I[n]« protection instances. For most CT classes it is necessary to make sure that the requirements in the following table are fulfilled.
Page 117 3 Hardware 3.5.3.4 CT Requirements , 20) = max( 25 ⋅ 500 A psc,max = max( , 20) = max(25, 20) = 25 500 A With K = 25 and K = 1 (overcurrent protection), the total dimensioning factor is calculated: K = K ⋅K...
Page 118: Slot X4
3 Hardware 3.6 Slot X4 Slot X4 • VT – Voltage Transformer Measuring Inputs slot1 slot2 slot3 slot4 slot5 slot6 X104 X100 X101 X102 X103 Fig. 25: Rear side of the device (Slots) The type of card in this slot is dependent on the ordered device type.
Page 119: Tu - Voltage Measuring Inputs
3 Hardware 3.6.1 TU – Voltage Measuring Inputs 3.6.1 TU – Voltage Measuring Inputs WARNING! Ensure the correct tightening torques (see diagram). • Connection cross section, without wire end ferrule: min. 0.75 mm² (AWG 18) … max. 6.0 mm² (AWG 10) •...
Page 120 3 Hardware 3.6.1 TU – Voltage Measuring Inputs VL1.1 VL1.2 VL2.1 VL2.2 VL3.1 VL3.2 VX1.1 VX1.2 Fig. 27: Electro-mechanical assignment Voltage Measuring Inputs The “TU” card is provided with 4 voltage measuring inputs: • The voltage measuring range is 0 – 800 V (for each input). •...
Page 121 3 Hardware 3.6.1 TU – Voltage Measuring Inputs CAUTION! The phase sequence (rotating field) of your power supply system has to be taken in to account. Make sure that the voltage transformers and measuring inputs are wired correctly. For the V-connection the parameter »VT con« has to be set to “Phase to Phase”. Please refer to the Technical Data (╚═▷...
Page 122: Voltage Transformers
3 Hardware 3.6.2 Voltage Transformers 3.6.2 Voltage Transformers Check the installation direction of the VTs. DANGER! It is imperative that the secondary sides of measuring transformers be grounded. NOTICE! For current and voltage sensing function external wired and appropriate current and voltage transformer shall be used, based on the required input measurement ratings.
Page 123 3 Hardware 3.6.2 Voltage Transformers Wiring Examples of the Voltage Transformers VL1/VL12 V̲ L 31' V̲ L 12' VL2/VL23 V̲ L 23' VL3/VL31 V̲ L 12 V̲ L 23 V̲ L 1' V̲ L 2' V̲ L 3' V̲ L 31 V̲...
Page 124 3 Hardware 3.6.2 Voltage Transformers VL1/VL12 V̲ L 31' V̲ L 12' VL2/VL23 V̲ L 23' V̲ L 12 VL3/VL31 V̲ L 23 V̲ L 31 V̲ L 1 V̲ L 2 V̲ L 3 Fig. 30: Three-phase voltage measurement - wiring of the measurement inputs: "delta- connection"...
Page 125 3 Hardware 3.6.2 Voltage Transformers VL1/VL12 V̲ L 31' V̲ L 12' VL2/VL23 V̲ L 23' V̲ L 12 VL3/VL31 V̲ L 23 da [e] V̲ L 31 dn [n] VX̲ ' V̲ L 1 V̲ L 2 V̲ L 3 Fig.
Page 126: Determination Of The Residual Voltage Vx For Various Connection Types
3 Hardware 3.6.3 Determination of the Residual Voltage VX for Various Connection Types 3.6.3 Determination of the Residual Voltage VX for Various Connection Types The residual voltage can be calculated either from the three phase-to-ground voltages, or it can be directly measured at the neutral terminal (e. g. of the generator) or over the broken delta.
Page 127: Calculation From The Three Phase-To-Ground Voltages
3 Hardware 3.6.3.1 Calculation from the Three Phase-to-Ground Voltages Quotient / Scaling Based on Vn All voltage thresholds of the voltage protection modules are set in units of the nominal voltage Vn, that is dependent on the settings »VT . VT sec« and »VT . VT pri«. Example: For the voltage transformer data shown in the diagram above (secondary voltage 100 V / √3 ̅...
Page 128: Measurement Over The Broken Delta
3 Hardware 3.6.3.2 Measurement Over the Broken Delta 3.6.3.2 Measurement Over the Broken Delta Field Para/VT Example Item Name Value Unit VT pri 20000 VT sec VT con Phase to Ground 20000 V EVT pri 20000 100 V EVT sec V Sync VL1/VL12 VL2/VL23...
Page 129: Measurement At The Neutral Terminal (E. G. Of The Generator)
3 Hardware 3.6.3.3 Measurement at the Neutral Terminal (e. g. of the Generator) 3.6.3.3 Measurement at the Neutral Terminal (e. g. of the Generator) Power Out VL1/VL12 VL2/VL23 VL3/VL31 Field Para/VT Name Value Unit VT pri 20000 Example Item VT sec VT con Phase to Ground 20000 V EVT pri...
Page 130: Slot X5
3 Hardware 3.7 Slot X5 Slot X5 • Analog Outputs slot1 slot2 slot3 slot4 slot5 slot6 X104 X100 X101 X102 X103 Fig. 33: Rear side of the device (Slots) The type of card in this slot is dependent on the ordered device type.
Page 131: An-O4 - Assembly Group With 4 Analog Outputs
3 Hardware 3.7.1 AN‑O4 – Assembly Group with 4 Analog Outputs 3.7.1 AN‑O4 – Assembly Group with 4 Analog Outputs WARNING! Ensure the correct tightening torques (see diagram). Connection cross section: min. 0.25 mm² (AWG 23) … max. 2.5 mm² (AWG 14) with or without wire end ferrule.
Page 132 3 Hardware 3.7.1 AN‑O4 – Assembly Group with 4 Analog Outputs AnOut 1 AnOut 1 COM AnOut 2 AnOut 2 COM AnOut 3 AnOut 3 COM AnOut 4 AnOut 4 COM HF Shield Fig. 35: Pin Assignment. Analog Outputs There are 4 Analog Output channels that are configurable to either output 0…20 mA, 4… 20 mA, or 0…10 V.
Page 133: Slot X6
3 Hardware 3.8 Slot X6 Slot X6 • Relay Output Card slot1 slot2 slot3 slot4 slot5 slot6 X104 X100 X101 X102 X103 Fig. 36: Rear side of the device (Slots) The type of card in this slot is dependent on the ordered device type.
Page 134: Slot X100: Ethernet Interface
3 Hardware 3.9 Slot X100: Ethernet Interface Slot X100: Ethernet Interface slot1 slot2 slot3 slot4 slot5 slot6 X104 X100 X102 X103 X101 Fig. 37: Rear side of the device (Slots) An Ethernet interface may be available depending on the ordered device type.
Page 135: Ethernet - Rj45
3 Hardware 3.9.1 Ethernet – RJ45 3.9.1 Ethernet – RJ45 MRMV4-3.7-EN-MAN MRMV4...
Page 136: Slot X102
3 Hardware 3.10 Slot X102 3.10 Slot X102 slot1 slot2 slot3 slot4 slot5 slot6 X104 X100 X102 X103 X101 Fig. 38: Rear side of the device (Slots). • • This slot is equipped with a Fiber optics interface for the URTD (Universal Resistance- based Temperature Detector) box.
Page 137: Interface For The Urtd Module
3 Hardware 3.10.1 Interface for the URTD Module 3.10.1 Interface for the URTD Module The Universal Resistance-Temperature Detector (URTD) module has to be connected to the protective device at the special fiber optic interface (1 optical slave). Fig. 39: Interface for the External URTD Module Fig.
Page 138: Slot X103: Data Communication
3 Hardware 3.11 Slot X103: Data Communication 3.11 Slot X103: Data Communication slot1 slot2 slot3 slot4 slot5 slot6 X104 X100 X102 X103 X101 Fig. 41: Rear side of the device (Slots) The data communication interface in the X103 slot is dependent on the ordered device type.
Page 139: Modbus® Rtu / Iec 60870-5-103 Via Rs485
3 Hardware 3.11.1 Modbus® RTU / IEC 60870-5-103 via RS485 3.11.1 Modbus® RTU / IEC 60870-5-103 via RS485 WARNING! Ensure the correct tightening torques. 0.3 Nm 2.65 lb⋅in 0.23 Nm 2.03 lb⋅in Protective Relay 120Ω Fig. 42: Terminals Protective Relay R1 = 560Ω...
Page 140 3 Hardware 3.11.1 Modbus® RTU / IEC 60870-5-103 via RS485 Protective Relay R1 = 560Ω R2 = 120Ω Fig. 44: Wiring example, Device in the middle of the bus Protective Relay R1 = 560Ω R2 = 120Ω Fig. 45: Wiring example, Device at the end of the bus. (Setting wire jumpers to activate the integrated Terminal Resistor.) MRMV4 MRMV4-3.7-EN-MAN...
Page 141 3 Hardware 3.11.1 Modbus® RTU / IEC 60870-5-103 via RS485 2.2nF 2.2nF 2.2nF 2.2nF (internal) (internal) (internal) (internal) Shield at bus master side Shield at bus device side Shield at bus master side Shield at bus device side connected to earth connected to earth connected to earth connected to earth...
Page 142 3 Hardware 3.11.1 Modbus® RTU / IEC 60870-5-103 via RS485 2.2nF 2.2nF 2.2nF 2.2nF (internal) (internal) (internal) (internal) Shield at bus master side Shield at bus device side Shield at bus master side Shield at bus device side connected to earth connected to earth connected to earth connected to earth...
Page 143: Profibus Dp/ Modbus® Rtu / Iec 60870-5-103 Via Fiber Optic
3 Hardware 3.11.2 Profibus DP/ Modbus® RTU / IEC 60870‑5‑103 via Fiber Optic 3.11.2 Profibus DP/ Modbus® RTU / IEC 60870‑5‑103 via Fiber Optic Fig. 48: Fiber Optic – FO, ST connector WARNING! Do not look directly into the light beam that is emitted from the fiber optics connector! Serious injury of the eyes can be consequence of ignoring this warning.
Page 144: Profibus Dp Via D-Sub
3 Hardware 3.11.3 Profibus DP via D‑SUB 3.11.3 Profibus DP via D‑SUB D-SUB assignment - bushing • 1: Earthing/shielding • 3: RxD TxD - P: High-Level • 4: RTS-signal • 5: DGND: Ground, neg. Potential of aux voltage supply • 6: VP: pos. Potential of the aux voltage supply •...
Page 145: Modbus® Rtu / Iec 60870-5-103 Via D-Sub
3 Hardware 3.11.4 Modbus® RTU / IEC 60870‑5‑103 via D‑SUB 3.11.4 Modbus® RTU / IEC 60870‑5‑103 via D‑SUB D-SUB assignment - bushing • 1: Earthing/shielding • 3: RxD TxD - P: High-Level • 4: RTS-signal • 5: DGND: Ground, neg. Potential of aux voltage supply •...
Page 146: Ethernet / Tcp/Ip Via Fiber Optics
3 Hardware 3.11.5 Ethernet / TCP/IP via Fiber Optics 3.11.5 Ethernet / TCP/IP via Fiber Optics RxD TxD Fig. 49: Fiber Optics – FO, LC duplex connector. CAUTION! After plugging in the LC connector, fasten the metal protecting cap. The tightening torque for the screw is 0.3 Nm [2.65 lb⋅in]. WARNING! Do not look directly into the light beam that is emitted from the fiber optics connector! Serious injury of the eyes can be consequence of ignoring this warning.
Page 147: Slot X104: Irig-B00X And Selfsupervision Contact
3 Hardware 3.12 Slot X104: IRIG-B00X and Selfsupervision Contact 3.12 Slot X104: IRIG-B00X and Selfsupervision Contact slot1 slot2 slot3 slot4 slot5 slot6 X104 X100 X102 X103 X101 Fig. 50: Rear side of the device (Slots). This slot comprises the IRIG-B00X and the Selfsupervision Contact. Available assembly groups in this slot: •...
Page 148: Self-Supervision Contact (Sc)/Life-Contact And Irig-B00X
3 Hardware 3.12.1 Self-Supervision Contact (SC)/Life-Contact and IRIG-B00X 3.12.1 Self-Supervision Contact (SC)/Life-Contact and IRIG-B00X WARNING! Ensure the correct tightening torques. 0.55 Nm 4.87 lb⋅in 0.3 Nm 2.65 lb⋅in Fig. 51: Terminals X104 Fig. 52: Electro-mechanical assignment Selfsupervision Contact The Selfsupervision Contact contact (“SC”) cannot be configured. It is a changeover (Form “C”) contact that picks up when the device is free from internal faults.
Page 149: Pc Interface - X120
3 Hardware 3.13 PC Interface – X120 3.13 PC Interface – X120 B1, B2 und B3 Housing USB-Interface for Parameter Setting and Evaluation Software - X120 Fig. 53: USB (Mini-B) MRMV4-3.7-EN-MAN MRMV4...
Page 150: Input, Output And Led Settings
3 Hardware 3.14 Input, Output and LED Settings 3.14 Input, Output and LED Settings 3.14.1 LEDs LED Configuration The LEDs can be configured within the menu branches [Device Para / LEDs / LEDs group A] (LED column left to the display) and [Device Para / LEDs / LEDs group B] (LED column right to the display).
Page 151 3 Hardware 3.14.1 LEDs »INFO« Push-Button Via the »INFO« button it is always possible to display the current status of the assigned trigger signals. Main LED overview: If the »INFO« key is pressed once, the »main overview of the left LEDs« is displayed (for the LEDs on the left-hand side).
Page 152 3 Hardware 3.14.1 LEDs Note that a latched LED does not get reset in case of a restart of the MRMV4: After a (warm or cold) restart, every latched LED will return to its individual (previously assumed) state. Acknowledgment Options Resetting a latched LED will always require an acknowledgment.
Page 153 3 Hardware 3.14.2 Configuration of the Digital Inputs Functionality LED_Y02 LEDs LED = LEDs group A, ... LED . Assignment 1 & no assignment 1..n, Assignment List LED . Inverting 1 ≥1 ≥1 LED . LED active color LED . LED .
Page 154: Configuration Of The Digital Inputs
3 Hardware 3.14.2 Configuration of the Digital Inputs Digital Inputs HPT_Y01 Inverting Inactive Inverting ≥1 Active DI Slot X . DI x State of the digital input Debouncing time Nom voltage Input Signal CAUTION! The debouncing time will be started each time the state of the input signal alternates. CAUTION! In addition to the debouncing time that can be set via software, there is always a hardware debouncing time (approx 12 ms) that cannot be turned of.
Page 155 3 Hardware 3.14.2 Configuration of the Digital Inputs Call up the Digital Input (Arrow right on the DI). Click on the Softkey »Parameter Setting/ Wrench« . Click on »Add« and assign a target. Assign where required additional targets. Deleting an assignment: Select as described above a Digital Input that should be edited at the HMI.
Page 156: Output Relays Settings
3 Hardware 3.14.3 Output Relays Settings 3.14.3 Output Relays Settings The State of the Relay Outputs can be checked within the menu: [Operation / Status Display / Name of the assembly group (e. g. BO-3 X)] The Relay Outputs can be configured within the menu: [Device Para / Binary Outputs / Name of the assembly group (e. g.
Page 157 3 Hardware 3.14.3 Output Relays Settings Latching If a binary output is configured as »Latched« = “Active”, it will keep its state – regardless whatever may happen – until it is acknowledged (see “Acknowledgment Options” below). A latched binary output gets reset only in any of the following cases and only after all assigned trigger signals have dropped out: •...
Page 158 3 Hardware 3.14.3 Output Relays Settings Functionality Binary Outputs OR_Y02 & Inverting Assignment 1 no assignment & 1..n, Assignment List ≥1 Inverting 1 & Assignment 7 no assignment & 1..n, Assignment List Inverting 7 ◄ ◄ hold time ≥1 & ≥1 t-hold Latched...
Page 159: Configuration Of The Analog Outputs
3 Hardware 3.14.4 Configuration of the Analog Outputs 3.14.4 Configuration of the Analog Outputs The Analog Outputs can be programmed to output for three different ranges of either »0‒ 20mA«, »4‒20 mA«, or »0‒10 Volts«. These outputs can be configured by the user to represent the status of user-programmed parameters that are available from the relay.
Page 160 3 Hardware 3.14.4 Configuration of the Analog Outputs Example – Field Data: • Current Transformer: CT pri = 200 A; CT sec = 5 A • Voltage Transformer: VT pri = 10 kV; VT sec = 100 V • Active power range 1 MW to 4 MW is mapped to an Analog Outputs 0% to 100%. Calculating setting for Range min and Range max based on primary side values: Active power range is 1 MW to 4 MW.
Page 161 3 Hardware 3.14.4 Configuration of the Analog Outputs Since the sign of Power Factor PF follows the sign of Active Power P, one cannot conclude from the sign whether this is capacitive or inductive Reactive Power. Hence, for Analog Output assignment the setting for PF output range uses a Power Factor with a “Sign Convention”: a positive sign (+) PF, if Active and Reactive Power have the same sign a negative sign (−) PF, if Active and Reactive Power have different signs...
Page 162: Communication Protocols
4 Communication Protocols 4.1 General SCADA (Communication) Setting Communication Protocols General SCADA (Communication) Setting The set of available SCADA protocols depends on the ordered hardware variant (see ╚═▷ “2.2.1 Order Form of the Device”, ╚═▷ “2.2.1.2 Communication Protocol Codes”). You have to define which one of the available SCADA protocols the MRMV4 shall use. This is done by setting [Device planning] »Protocol«...
Page 163: Tcp/Ip Settings
4 Communication Protocols 4.2 TCP/IP Settings TCP/IP Settings NOTICE! Establishing a connection via TCP/IP to the device is only possible if your device is equipped with an Ethernet Interface (RJ45). Contact your IT administrator in order to establish the network connection. Within menu [Device Para / TCP/IP / TCP/IP config] the TCP/IP settings have to be set.
Page 164: Iec 61850
4 Communication Protocols 4.3 IEC 61850 IEC 61850 Introduction To understand the functioning and mode of operation of a substation in an IEC 61850 automation environment, it is useful to compare the commissioning steps with those of a conventional substation in a Modbus TCP environment. In a conventional substation the individual IEDs (Intelligent Electronic Devices) communicate in vertically direction with the higher level control center via SCADA.
Page 165 4 Communication Protocols 4.3 IEC 61850 IEC 61850 configuration (software wiring): • Exporting an ICD file from each device • Configuration of the substation (generating an SCD file) • Transmit SCD file to each device. Generation / Export of a device specific ICD file Please refer to chapter ”IEC 61850“...
Page 166: Dnp3
4 Communication Protocols 4.4 DNP3 DNP3 DNP (Distributed Network Protocol) is for data and information exchange between SCADA (Master) and IEDs (Intelligent Electronic Devices). The DNP protocol has been developed in first releases for serial communication. Due to further development of the DNP protocol, it offers now also TCP and UDP communication options via Ethernet.
Page 167 4 Communication Protocols 4.4 DNP3 Point Mapping Binary Inputs Double Bit Inputs Pulse Signal DNP Master Counters Analog Inputs Protective Relay Fig. 54: Point Mapping NOTICE! Please take into account that the designations of inputs and outputs are set from the Masters perspective.
Page 168 4 Communication Protocols 4.4 DNP3 • Counters (Counters to be sent to the master) Assign the required counter (e. g. the number of operating hours »Sys . Operating hours Cr« to an available parameter [Device Para / DNP3 / Point map / BinaryCounter] »DoubleBitInput 0…7«.
Page 169: Application Example: Setting A Relay
4 Communication Protocols 4.4.1 Application Example: Setting a Relay 4.4.1 Application Example: Setting a Relay ≥1 Visual Logic Editor: LE 1 & LE1.Gate Out Logic gate LE1.Input1 Timer LE1.Timer Out DNP . BinaryOutput1 LE1.Input2 - . - ≥1 Latch LE1.Out LE1.Input3 0.00 - .
Page 170 4 Communication Protocols 4.4.2 Deadband Settings in DNP3 Voltage (via “TU” Voltage Measuring Card) ☼ • The voltage transformer card “TU” covers the voltage range 0 – 800 V. (See the “Technical Data” chapter in the manual.) In other words, the maximum value is 800 V.
Page 171 4 Communication Protocols 4.4.2 Deadband Settings in DNP3 Earth (Ground) Current (1 A CT) ☼ • The standard current transformer card “TI” covers the range 0 – 25 A. • The rated current (secondary) is 1 A. • Therefore the conversion factor from the percentage of the rated current to the Deadband setting is: q = 1 A / 25 A = 0.04 •...
Page 172 4 Communication Protocols 4.4.2 Deadband Settings in DNP3 Power (5 A CT and “TU” Voltage Measuring Card) ☼ • The value range is 0 – 160000 VA. • The rated power (secondary) is based on the rated voltage and the rated current (secondary): 100 V ⋅ 5 A ⋅ √3 ̅...
Page 173 4 Communication Protocols 4.4.2 Deadband Settings in DNP3 cos(φ) ☼ This value is special because there is no rated value. • The maximum value is 1.0. • For example, a deadband value of 0.01 is required. (It makes not much sense to talk of percentages here.) •...
Page 174: Configurable Communication Protocols
4 Communication Protocols 4.5 Configurable Communication Protocols Configurable Communication Protocols Some of the SCADA protocols supported by the MRMV4 have an option to adapt the mapping of data objects to the protocol-internal addresses to one’s own needs. This can be done using a separate PC software tool, SCADApter. The protocols supporting such a re-mapping are currently as follows: •...
Page 175: Iec60870-5-103
4 Communication Protocols 4.5.1 IEC60870-5-103 4.5.1 IEC60870-5-103 In order to use the IEC60870-5-103 protocol it has to be assigned to the X103 Interface within the Device Planning. The device will reboot after setting this parameter. Moreover, the IEC103 protocol has to be activated by setting [Device Para / IEC103] »Function«...
Page 176 4 Communication Protocols 4.5.1 IEC60870-5-103 The section for the identification of the software contains three digits of the device code for the identification of the device type. Beside the upper mentioned identification number the device generates a communication start event. Time Synchronization Time and date of the relay can be set by means of the time synchronization function of the IEC60870-5-103 protocol.
Page 177 4 Communication Protocols 4.5.1 IEC60870-5-103 • External activation, by assigning a signal to the setting parameter »Ex activate Block MD« Test Mode The relay supports the test mode (Cause of Transmission 7). There are two ways to activate the test mode: •...
Page 178: Iec 60870-5-104
4 Communication Protocols 4.5.2 IEC 60870‑5‑104 4.5.2 IEC 60870‑5‑104 The IEC 60870‑5‑104 protocol is a standardized communication protocol. It is available with HighPROTEC devices that are equipped with an Ethernet interface. Although there is a standard mapping of data-points that comes with the MRMV4 it is expected that most users want to adapt the mapping to their own needs.
Page 179 4 Communication Protocols 4.5.2 IEC 60870‑5‑104 Data-Point Mapping of Measurement Values In the SCADApter configuration tool, there is a setting »Deadband« for each measured (or statistical) value. It defines the value change that will cause the updated value to be transmitted again.
Page 180 4 Communication Protocols 4.5.2 IEC 60870‑5‑104 2020-06-06_First_IEC104_Mapping.HptSMap - SCADApter File Edit Settings Help IEC104 Information Object Data type Deadband Scaling/Norm factor Value Type Exclude from GI Comment Description ▲ ▲ Address ▼ 0001 VT.VL12 Short float 1.0 Actual value Measured value: Phase-to-phase voltage ▲...
Page 181 4 Communication Protocols 4.5.2 IEC 60870‑5‑104 Activate a User-Defined Data-Point Mapping For information about how to create a mapping file and download or upload it to the MRMV4, see the SCADApter documentation and ╚═▷ “4.5.5 Data-Point Mapping Using the SCADApter”. (Since the data-point mapping is a general feature that is usable for several communication protocols in the same way, it is described separately.) MRMV4-3.7-EN-MAN MRMV4...
Page 182: Modbus
4 Communication Protocols 4.5.3 Modbus® 4.5.3 Modbus® ® Modbus Protocol Configuration ® The Modbus communication protocol is available with HighPROTEC devices that are equipped with either a serial interface (“Modbus RTU”) or an Ethernet interface (“Modbus TCP”). The standard protocol definition (mapping of data-points) that comes with the MRMV4 is sufficient for most applications, so that only a few settings have to be made (see below).
Page 183 4 Communication Protocols 4.5.3 Modbus® ® To allow configuration of the devices for Modbus connection, some default values of the control system must be available. Setup At first the Modbus protocol has to be selected as the SCADA protocol to be used: Set [Device planning] »Protocol«...
Page 184 4 Communication Protocols 4.5.3 Modbus® If, for example, an invalid memory address is enquired, error codes will be returned by the device that need to be interpreted. Modbus TCP NOTICE! Establishing a connection via TCP/IP to the device is only possible if your device is equipped with an Ethernet Interface (RJ45).
Page 185 4 Communication Protocols 4.5.3 Modbus® Then start the SCADApter. After selecting either [File / New] or [File / Open] you have to select a device model and the communication protocol (which is “Modbus” in this case). After this, you can see six tabs, “FC1” … “FC6”. Each of these tabs features a table that holds the mapped data-objects.
Page 186 4 Communication Protocols 4.5.3 Modbus® For information about how to upload the edited mapping to the MRMV4, see the SCADApter documentation and ╚═▷ “4.5.5 Data-Point Mapping Using the SCADApter”. (Since the data-point mapping is a general feature that is usable for several communication protocols in the same way, it is described separately.) MRMV4 MRMV4-3.7-EN-MAN...
Page 187: Profibus
4 Communication Protocols 4.5.4 Profibus 4.5.4 Profibus Configuration of the Devices After selecting Profibus as the SCADA protocol (via setting [Device planning] »Protocol« = “Profibus”), enter the menu branch [Device Para / Profibus] ; there you have to set the following communication parameter: •...
Page 188: Data-Point Mapping Using The Scadapter
4 Communication Protocols 4.5.5 Data-Point Mapping Using the SCADApter 4.5.5 Data-Point Mapping Using the SCADApter Software Tools The setup procedure for a user-defined data-point mapping always works the same way for all SCADA protocols that support user-defined mappings. A mapping of data objects is always based on a separate file of file-type (extension) *.HptSMap.
Page 189 4 Communication Protocols 4.5.5 Data-Point Mapping Using the SCADApter Device Para/IEC104/Config. Data Obj. Smart view Send SCADA SCADA Data Point Mapping Configuration configuration to the device? Recently used File: MyIEC104_Mapping.HptSMap Select a SCADA Mapping File from Disk and send it to the connected Device Smart view Receive SCADA Mapping File from connected Device and save it on Disk...
Page 190: Time Synchronization
4 Communication Protocols 4.6 Time Synchronization Time Synchronization The device gives the user the ability to synchronize the device with a central time generator. This provides the following advantages: • The time does not drift from the reference time. A continuously accumulating deviation of the reference time thereby will be balanced.
Page 191 4 Communication Protocols 4.6 Time Synchronization Modbus TCP Hardware Interface Recommended Application RJ45 (Ethernet) Limited recommendation when Modbus TCP communication protocol is used and when no IRIG-B real time clock or an SNTP server is available. IEC 60870‑5‑103 Hardware Interface Recommended Application RS485, D-SUB or Fiber Optic Recommended when using the IEC 60870‑5‑103...
Page 192 4 Communication Protocols 4.6 Time Synchronization Time Synchronization with UTC time (recommended): Time synchronization is usually done using UTC time. This means for example that an IRIG-B time generator is sending UTC time information to the protection relay. This is the recommended use case, since here a continuous time synchronization can be ensured.
Page 193: Sntp
4 Communication Protocols 4.6.1 SNTP 4.6.1 SNTP NOTICE! Important pre-condition: The device needs to have access to an SNTP server via the connected network. This server preferably should be installed locally. Principle – General Use SNTP is a standard protocol for time synchronisation via a network. For this at least one SNTP server has to be available within the network.
Page 194 4 Communication Protocols 4.6.1 SNTP Recommended is a locally installed SNTP server with an accuracy of ≤200 µsec. If this cannot be realised, the connected server's excellence can be checked in the menu [Operation / Status Display / TimeSync / SNTP]: •...
Page 195: Irig-B00X
4 Communication Protocols 4.6.2 IRIG-B00X 4.6.2 IRIG-B00X NOTICE! Requirement: An IRIG-B00X time code generator is needed. IRIG-B004 and higher will support/transmit the “year information”. If you are using an IRIG time code that does not support the “year information” (IRIG- B000, IRIG-B001, IRIG-B002, IRIG-B003), you have to set the “year”...
Page 196 4 Communication Protocols 4.6.2 IRIG-B00X IRIG‑B Commissioning Activate the IRIG‑B synchronization within the menu [Device Para / Time / TimeSync]: • Select »IRIG‑B« in the time synchronization menu. • Set the time synchronization in the [IRIG-B] menu to “Active”. • Select the IRIG‑B type (choose B000 through B007). Fault Analysis If the device does not receive any IRIG‑B time code for more than 60 s, the IRIG‑B status switches from »active«...
Page 197: Protective Elements
5 Protective Elements 5.1 Module Prot: General Protection Protective Elements Module Prot: General Protection The module »Module General Protection« (»Prot«) serves as outer frame for all other protection modules, i. e. they are all enclosed by this module. WARNING! If in the »Prot« module the parameter [Protection Para / Global Prot Para / Prot] »Function«...
Page 198 5 Protective Elements 5.1 Module Prot: General Protection • Optionally make assign a blocking signal to »ExBlo2«. If any of the assigned signals becomes true, then the entire protection is blocked (as long as any of these signals stays true). Blocking all Trip Commands Permanently In order to permanently block all trip commands navigate to the menu [Protection Para / Global Prot Para / Prot]:...
Page 199: General Alarms And General Trips
5 Protective Elements 5.1.1 General Alarms and General Trips 5.1.1 General Alarms and General Trips Each protective element generates its own alarm and trip signals. In general, all alarms and trip decision are passed on to the master module »Prot«, with one important exception: If a protective element features a setting »Superv.
Page 200 5 Protective Elements 5.1.1 General Alarms and General Trips GeneralProt_Y09 name = Each trip of an active, trip authorized protection module will lead to a general trip. Please Refer To Diagram: Blockings (Stage is not deactivated and no active blocking signals) &...
Page 201 5 Protective Elements 5.1.1 General Alarms and General Trips • If a protection module, named »name«, detects a fault it issues an alarm signal: »name . Alarm« – “(54)” in the diagram. ◦ Unless there is a setting »name . Superv. only« = “yes” the alarm signal gets passed on –...
Page 202 5 Protective Elements 5.1.1 General Alarms and General Trips Prot . Alarm GeneralProt_Y18 name = Each alarm of a module (except from supervision modules but including CBF) will lead to a general alarm (collective alarm). name . Alarm ≥1 name[2] . Alarm Prot .
Page 203 5 Protective Elements 5.1.1 General Alarms and General Trips Prot.Trip GeneralProt_Y19 Each phase selective trip of a trip authorized module (I, IG, V, VX depending on the device type) will lead to a phase selective general trip. I[1]...[n] . Trip L1 ≥1 Prot .
Page 204: Blockings
5 Protective Elements 5.1.2 Blockings 5.1.2 Blockings The device provides a function for temporary and permanent blocking of the complete protection functionality or of single protection stages. WARNING! Make absolutely sure that no illogical or even life-threatening blockings are allocated. Make sure that you do not carelessly deactivate protection functions which have to be available according to the protection concept.
Page 205 5 Protective Elements 5.1.2 Blockings • Within the general protection parameters a signal has to be assigned to »ExBlo1« or »ExBlo2«. The blocking only becomes active when the assigned signal is active. To block the tripping command of a protection stage temporarily by an active assignment. The tripping command of any of the protection modules can be blocked from external.
Page 206: Blocking The Tripping Command
5 Protective Elements 5.1.2.1 Blocking the Tripping Command 5.1.2.1 Blocking the Tripping Command Trip blockings GeneralProt_Y02 name = all modules that are blockable Prot . Blo TripCmd Inactive Prot . Blo TripCmd Active ≥1 name . Blo TripCmd Prot . ExBlo TripCmd Inactive Active Prot .
Page 207: Activate, Deactivate Or Block A Protection Function Temporarily
5 Protective Elements 5.1.2.2 Activate, Deactivate or Block a Protection Function Temporarily 5.1.2.2 Activate, Deactivate or Block a Protection Function Temporarily The following diagram applies to all protective elements except those for which a module- specific diagram follows underneath: Blockings GeneralProt_Y05 name = all modules that are blockable Frequency is within the nominal frequency range.(*)(**)
Page 208: Activate, Deactivate Or Block The Phase Current Modules
5 Protective Elements 5.1.2.3 Activate, Deactivate or Block the Phase Current Modules 5.1.2.3 Activate, Deactivate or Block the Phase Current Modules Current protective functions cannot only be blocked permanently (»Function« = “Inactive”) or temporarily by any blocking signal from the »assignment list«, but also by »reverse Interlocking«.
Page 209 5 Protective Elements 5.1.2.3 Activate, Deactivate or Block the Phase Current Modules Blockings (**) Pdoc_Y03 I = I[1]...[n] Frequency is within the nominal frequency range.(*)(**) & Please Refer To Diagram: Prot Prot. Active (The General Protection module is not deactivated or blocked) VRestraint &...
Page 210: Activate, Deactivate Or Block The Ground (Earth) Current Modules
5 Protective Elements 5.1.2.4 Activate, Deactivate or Block the Ground (Earth) Current Modules 5.1.2.4 Activate, Deactivate or Block the Ground (Earth) Current Modules Ground (earth) current protective functions cannot only be blocked permanently (»Function« = “Inactive”) or temporarily by any blocking signal from the »assignment list«, but also by »reverse Interlocking«.
Page 211 5 Protective Elements 5.1.2.4 Activate, Deactivate or Block the Ground (Earth) Current Modules Blockings (**) Edoc_Y03 IG = IG[1]...[n] Frequency is within the nominal frequency range.(*)(**) & Please Refer To Diagram: Prot Prot. Active (The General Protection module is not deactivated or blocked) IG .
Page 212: Mstart - Motor Start And Control Module [48, 66]
5 Protective Elements 5.2 MStart – Motor Start and Control Module [48, 66] MStart – Motor Start and Control Module [48, 66] General – Principle Use The motor start control logic is the core control and protective function for a motor protection device.
Page 213 5 Protective Elements 5.2 MStart – Motor Start and Control Module [48, 66] Motor Operation States TRN Criterion Transition on time only Transition on current only Transition on current OR time From other trip modules Transition on current AND time Start Block Stop...
Page 214: Motor Start / Transition Trips
5 Protective Elements 5.2.1 Motor Start / Transition Trips 5.2.1 Motor Start / Transition Trips Trip During Motor Start MotorStart_Y02 [1.] MStart . ColdStartSeq MStart . TRNT MStart . TRNC IL1 Ib IL2 Ib & MStart . TransitionTrip IL3 Ib MStart .
Page 215 5 Protective Elements 5.2.1 Motor Start / Transition Trips The motor is tripped during the start phase, in case that any of the following occurs: • [1.] The Start Control detects an unsuccessful start. This is signaled as »MStart . TransitionTrip«. (See ╚═▷...
Page 216: Start Control
5 Protective Elements 5.2.1.1 Start Control 5.2.1.1 Start Control »TRNC« »TRNT« 30% ⋅ Ib »TRN Criterion« = “TRN I”: Stop Start »TRN Criterion« = “TRN T or I”: Stop Start »TRN Criterion« = “TRN TIME”: Stop Start »TRN Criterion« = “TRN T and I”: Stop Start The parameters for the Start Control have to be set within menu [Protection Para / Global...
Page 217 5 Protective Elements 5.2.1.1 Start Control • “TRN TIME” — Transition to RUN after the set time »TRNT«. The current is ignored. • “TRN I” — Transition when the starting current has dropped below the setting »TRNC«. If the »TRNT« timer elapses before the current drops below the transition level »TRNC«, the motor trips.
Page 218: Incomplete Sequence (Insq)
5 Protective Elements 5.2.1.2 Incomplete Sequence (InSq) 5.2.1.2 Incomplete Sequence (InSq) The Incomplete Sequence function requires an input from the report back contact from the process that the motor is running. Shortly after the motor starts, the report back contact provides an indication that the process has started to operate as expected. If the process does not start up correctly, the contact does not close within the expected time.
Page 219: Zero Speed Switch (Zss On Or Off)
5 Protective Elements 5.2.1.3 Zero Speed Switch (ZSS ON or OFF) 5.2.1.3 Zero Speed Switch (ZSS ON or OFF) The setting [Protection Para / Global Prot Para / MStart / Start Control] »ZSS« enables the function that verifies if the motor begins to physically spin after a start. It requires a zero- speed switch (digital switch) on the motor that is closed at rest and opens as the rotor reaches 5%…10% of its normal speed.
Page 220: Reversing Or Non-Reversing Starter
5 Protective Elements 5.2.1.4 Reversing or Non-Reversing Starter 5.2.1.4 Reversing or Non-Reversing Starter The MRMV4 uses the phase currents to calculate the symmetrical components (positive and negative system). Based on these the MRMV4 determines the phase rotation of the applied system. If the measurements fit to the setting [Field Para] »Phase Sequence«, the signal »MStart .
Page 221: Motor Start Blocked
5 Protective Elements 5.2.2 Motor Start Blocked 5.2.2 Motor Start Blocked Potential Blocking Conditions Motor Start Blocked MotorStart_Y01 [Bl.1] MStart . SPH Fc MStart . Inactive MStart . SPH Remaining Active & Φ MStart . SPHBlocked MStart . ColdStartSeq [Bl.2] &...
Page 222 5 Protective Elements 5.2.2 Motor Start Blocked The reasons for a Motor Start Blocking can be as follows: • [Bl.1] A blocking because of too many starts per hour is signaled by »MStart . SPHBlocked«. ╚═▷ “5.2.2.1 Start Limits”. • [Bl.2] A blocking because the waiting time between starts has not elapsed yet is signaled by »MStart .
Page 223: Start Limits
5 Protective Elements 5.2.2.1 Start Limits 5.2.2.1 Start Limits Because motor starting consumes a considerable amount of thermal energy compared to its normal load conditions, the number of starts in a given time period must be monitored and controlled. The MRMV4 has three criteria that contribute to the start limits monitoring.
Page 224: Anti-Backspin Timer - "Abs Timer
5 Protective Elements 5.2.2.2 Anti-Backspin Timer – »ABS Timer« a cold start before it exhausts »NOCS«. All starts after this are subject to time and count limits imposed by »TBS« and »SPH«. If the motor reaches the »NOCS« limit in a cold start sequence, the »NOCSBlocked« block signal is set and the »TBS«...
Page 225: Delayed Protection Enabling During Motor Starts
5 Protective Elements 5.2.3 Delayed Protection Enabling During Motor Starts 5.2.3 Delayed Protection Enabling During Motor Starts When the MRMV4 detects a motor start, various timers are started. Each of these timers blocks a protective function until the set delay expires. This way false trip decisions by these protection functions during the motor start are prevented.
Page 226 5 Protective Elements 5.2.3 Delayed Protection Enabling During Motor Starts MotorStart_Y06 Module input state: External blocking (during the motor start phase) MStart . t-Blo-Overvoltage MStart . Start MStart . Block-OverVStart MStart . t-Blo-Undervoltage MStart . Blo-UnderV Start MStart . t-Blo-U2> MStart .
Page 227 5 Protective Elements 5.2.3 Delayed Protection Enabling During Motor Starts Note that within every »I2>[x]« module, a dedicated blocking parameter is defined by default for this purpose: »I2>[x] . ExBlo dur. Mot.Strt« = “MStart . Blo-I2>Start” • JAM: The setting »t-Blo-JAM« defines the time (in seconds) after a start is recognized until the »Jam[x]«...
Page 228 5 Protective Elements 5.2.3 Delayed Protection Enabling During Motor Starts The setting »t-Blo-Frequency« defines the time (in seconds) after a start is recognized until the »f[x]« protection modules (ANSI 81) are enabled. Note that within every »f[x]« module, a dedicated blocking parameter is defined by default for this purpose: »f[x] .
Page 229: Long Acceleration Time (Lat)
5 Protective Elements 5.2.4 Long Acceleration Time (LAT) 5.2.4 Long Acceleration Time (LAT) The LAT function is enabled at [Protection Para / Global Prot Para / MStart / Start Control] »LAT Fc«. Then the timer »LAT Timer« defines a time interval during which the motor is permitted to accelerate a high-inertia load, which is longer than the locked-rotor time.
Page 230: Motor Cold / Warm Detection
5 Protective Elements 5.2.5 Motor Cold / Warm Detection 5.2.5 Motor Cold / Warm Detection The motor will be considered as cold (»Cold sequ = true«) after being in the »stop« mode for more than one hour if the time between starts timer is set to a lower value than 1 hour.
Page 231: Emergency Override
5 Protective Elements 5.2.6 Emergency Override 5.2.6 Emergency Override The Emergency Override function can be enabled or disabled via the setting [Protection Para / Global Prot Para / MStart / Start Control] »EmgOvr«. The setting value also determines whether this function can be executed by a Digital Input (“DI”) or by a softkey at the HMI (“HMI”) or both (“DI or HMI”).
Page 232: Thm - Thermal Model [49M, 49R]
• I₁ = the per unit stator positive-sequence current. • K₂ = setting »K2«, see above. The value of K₂ = 6.01 should be used to mimic the thermal model of SEG's MP‑3000 and MP‑4000 motor relays. • I₂ = per unit stator negative-sequence current.
Page 233 5 Protective Elements 5.3 ThM – Thermal Model [49M, 49R] With this, the thermal limit curve can be expressed as the following: ⋅T TripTime = eff.heat under the condition that > k ⋅ CT eff.heat prim where • k = setting »k-Factor «, see above. •...
Page 234 5 Protective Elements 5.3 ThM – Thermal Model [49M, 49R] Stator Temperature [°C] Fig. 64: Effective Current Threshold vs. Maximum Stator Temperature. Without stator temperature, given the current threshold of 1.0 ⋅ Ib (FLA) and 2.0 ⋅ Ib (FLA) of the stator phase current, the thermal model will use the full thermal capacity in 139.54 seconds.
Page 235 5 Protective Elements 5.3 ThM – Thermal Model [49M, 49R] 1000 Multiple of Full Load Ampere SF = 1, TC = 100% Ith = 150%, Tth = 80%⋅TC Fig. 66: Thermal Replica Model Limit and Trip Curves with RTD = 100°C. In the Thermal Replica Model Trip Curves with and without RTD, the unmarked lines are the thermal limit curves and the marked lines are the trip curves.
Page 236: Lrc - Locked Rotor During Start
5 Protective Elements 5.3.1 LRC - Locked Rotor during Start 5.3.1 LRC - Locked Rotor during Start Functional Description The Locked-rotor protection function is a integral part of the thermal model and is used to protect the motor in the event that the motor fails to start or accelerate after being energized.
Page 237: Utc - Ultimate Trip Current
5 Protective Elements 5.4 UTC – Ultimate Trip Current UTC – Ultimate Trip Current Functional Description The Ultimate Trip Current (UTC) sets the current level at which a trip eventually occurs when no RTD stator temperature data is available. The current level is settable to a value as a multiples of »Ib« (Full Load Amps, FLA). This value represents the vertical line on the upper portion of the non-RTD as shown in the protection trip curve labeled Motor Protection Curve Example 2 (without RTD).
Page 238: Motor Protection Curves
5 Protective Elements 5.4.1 Motor Protection Curves 5.4.1 Motor Protection Curves Ultimate trip based on % of full-load amperes (100% shown) Maximum allowable stalll time (30 sec cold start) (15 sec cold start) I²T curves (I is an effective (10 sec cold start) current including (5 sec cold start) I1 and kI2.)
Page 239 5 Protective Elements 5.4.1 Motor Protection Curves Ultimate trip level: 100% full-load amperes Underload trip level 60% full-load Note: I is a amperes combination of positive (I ) and negative (I Underload run sequence delay: 5 Sec. motor currents Motor running with load Max.
Page 240 5 Protective Elements 5.4.1 Motor Protection Curves Stator temperature measured directly Stator winding temperature (trip) function is set point Note: I is a Underload combination of trip level positive (I ) and 60% full-load negative (I amperes sequence motor currents Motor running with load Underload run...
Page 241: Mls - Mechanical Load Shedding
5 Protective Elements 5.5 MLS – Mechanical Load Shedding MLS – Mechanical Load Shedding Functional Description In some applications, the protective device can forestall a JAM alarm or trip, or a thermal trip, by sending a signal to the process to reduce loading. The load-shedding function, if enabled, closes or opens a relay contact to shed process load when the motor load current goes above the threshold settable at [Protection Para / Set 1…4 / MLS] »Pickup Threshold«, for a time exceeding the delay [Protection Para / Set 1…4 / MLS] »t-Pickup...
Page 242: Commissioning: Mechanical Load Shedding
5 Protective Elements 5.5.1 Commissioning: Mechanical Load Shedding 5.5.1 Commissioning: Mechanical Load Shedding Object to be tested • Testing the pick-up and drop-out tresholds • Testing the delay times Necessary means • 3-phase current source • Ammemeter • Timer for measuring of the tripping times Procedure Testing the threshold values (three-phase) This test is only possible, if the motor is in run mode.
Page 243 5 Protective Elements 5.5.1 Commissioning: Mechanical Load Shedding The measured tripping delays and threshold values comply with those values, specified in the adjustment list. Permissible deviations/tolerances can be found under Technical data (╚═▷ “13.1 Technical Data”). MRMV4-3.7-EN-MAN MRMV4...
Page 244: Jam - Locked Rotor Protection [51Lr]
5 Protective Elements 5.6 Jam – Locked Rotor Protection [51LR] Jam – Locked Rotor Protection [51LR] Description When the motor is running, a current increase above normal load may be an indication of a malfunction in the load. JAM protection recognizes mechanical problems, such as broken drive gears.
Page 245: Commissioning: Jam [51Lr]
5 Protective Elements 5.6.1 Commissioning: JAM [51LR] Use the start delay to block tripping and alarming until the motor current drops to continuous load level. Use run delays to avoid false alarms or trips for load transients. Functionality JAM_Y01 Jam = Jam[1]...[n] Please Refer To Diagram: Blockings (Stage is not deactivated and no active blocking signals) Jam .
Page 246 5 Protective Elements 5.6.1 Commissioning: JAM [51LR] Testing the fallback ratio Enlarge the measuring quantity to less than 97% of the trip value. The relay must only fall back at 98% of the trip value at the earliest. Successful test result The measured tripping delays, threshold values and fallback ratio comply with those values, specified in the adjustment list.
Page 247: I< - Undercurrent [37]
5 Protective Elements 5.7 I< – Undercurrent [37] I< – Undercurrent [37] Functional Description When the motor is running, a current reduction might indicate a malfunction in the load. Underload protection recognizes mechanical problems, such as a blocked flow or loss of back pressure in a pump, or a broken drive belt or drive shaft.
Page 248 5 Protective Elements 5.7 I< – Undercurrent [37] Underload Pickup based on a multiplier of Ib JAM based on a multiplier of Ib 1000 Underload delay time JAM Delay Time JAM function, not active during start delay function. 6 810 multiples of Ib JAM based on a multiplier of Ib Underload Trip...
Page 249: Commissioning: Undercurrent [Ansi 37]
5 Protective Elements 5.7.1 Commissioning: Undercurrent [ANSI 37] UnderLoad_Y01 I< I< = I<[1]...[n] Please Refer To Diagram: Blockings (Stage is not deactivated and no active blocking signals) I< . Alarm Mode any one & ≥1 ≥1 & I< . Alarm I<...
Page 250 5 Protective Elements 5.7.1 Commissioning: Undercurrent [ANSI 37] Enlarge the measuring quantity to more than 103% of the trip value. The relay must only fall back at 103% of the trip value at the earliest. Successful test result The measured tripping delays, threshold values and fallback ratio comply with those specified in the adjustment list.
Page 251: I - Overcurrent Protection
5 Protective Elements 5.8 I – Overcurrent Protection I – Overcurrent Protection The Phase Overcurrent module »I« covers the following ANSI protection functions: • ANSI 50 — ╚═▷ “ANSI 50, 51 – Definite / Inverse Time Overcurrent Protection, Non- Directional”, ╚═▷...
Page 252 5 Protective Elements 5.8 I – Overcurrent Protection Options: • [Protection Para / Set 1…4 / I-Prot / I[x]] »Measuring method« = ◦ Fundamental ◦ True RMS ◦ I2 • »Measuring Mode« = ◦ Phase to Phase ◦ Phase to Ground When the parameter »VRestraint«...
Page 253: Characteristics
5 Protective Elements 5.8.1 Characteristics 5.8.1 Characteristics For each element the following characteristics are available and can be selected at [Protection Para / Set 1…4 / I-Prot / I[x]] »Char«: • DEFT – Definite Time-Overcurrent • IEC 60255‑151 Curves: ◦ NINV –...
Page 254 5 Protective Elements 5.8.1 Characteristics ◦ With option »Reset Mode« = “instantaneous”: Instantaneous reset: when the current drops below the pickup setting, the TOC time resets to zero within 2 cycles. ◦ With option »Reset Mode« = “definite time”: The reset delay is settable at »tReset«.
Page 255 5 Protective Elements 5.8.1.1 DEFT – Definite Time-Overcurrent 5.8.1.1 DEFT – Definite Time-Overcurrent DEFT t / s I> 0.01 I / In Trip delay for I > I , settable via [Protection Para / Set 1…4 / I-Prot / I[x]] »t«. >...
Page 256: Inverse-Time Characteristics (Phase Current)
5 Protective Elements 5.8.1.2 Inverse-Time Characteristics (Phase Current) 5.8.1.2 Inverse-Time Characteristics (Phase Current) See also ╚═▷ “Explanation for All Characteristics” for more information. Characteris‐ Trip Delay Reset Delay (only for »Reset Mode« = »Char« “inverse time”) τ ⎛ ⎞ ⋅ tChar α...
Page 257 5 Protective Elements 5.8.1.2 Inverse-Time Characteristics (Phase Current) Characteris‐ Trip Delay Reset Delay (only for »Reset Mode« = »Char« “inverse time”) t = c ⋅ tChar⋅ K t = c ⋅ tChar⋅ K ⎛ ⎞ ⎝ ⎠ Therm Flat See also ╚═▷...
Page 258 5 Protective Elements 5.8.1.2.1 IEC 60255‑151 Curves (Phase Current) 5.8.1.2.1 IEC 60255‑151 Curves (Phase Current) 5.8.1.2.1.1 IEC Normal Inverse (IEC 60255‑151) »I[x] . Char« = IEC NINV t / s tChar= 0.05 0.01 0.01 I / I> (multiples of pickup) Fig.
Page 259 5 Protective Elements 5.8.1.2.1.2 IEC Very Inverse [VINV] (IEC 60255‑151) 5.8.1.2.1.2 IEC Very Inverse [VINV] (IEC 60255‑151) »I[x] . Char« = IEC VINV t / s tChar= 0.05 0.01 0.01 I / I> (multiples of pickup) Fig. 73: VINV: reset delay (left half, I ...
Page 260 5 Protective Elements 5.8.1.2.1.3 IEC Extremely Inverse - Characteristic (IEC 60255‑151) 5.8.1.2.1.3 IEC Extremely Inverse - Characteristic (IEC 60255‑151) »I[x] . Char« = IEC EINV 1000 t / s tChar= 0.01 0.05 0.01 I / I> (multiples of pickup) Fig. 74: EINV: reset delay (left half, I <...
Page 261 5 Protective Elements 5.8.1.2.1.4 IEC Long Time Inverse - Characteristic [LINV] (IEC 60255‑151) 5.8.1.2.1.4 IEC Long Time Inverse - Characteristic [LINV] (IEC 60255‑151) »I[x] . Char« = IEC LINV 1000 t / s tChar= 0.05 0.01 I / I> (multiples of pickup) Fig.
Page 262 5 Protective Elements 5.8.1.2.2 R Inverse [RINV] - Characteristic 5.8.1.2.2 R Inverse [RINV] - Characteristic »I[x] . Char« = RINV t / s tChar= 0.05 0.01 I / I> (multiples of pickup) Fig. 76: RINV: reset delay (left half, I ...
Page 263 5 Protective Elements 5.8.1.2.3 IEEE C37.112 Curves (Phase Current) 5.8.1.2.3 IEEE C37.112 Curves (Phase Current) 5.8.1.2.3.1 Moderately Inverse [MINV] - Characteristic (IEEE C37.112) »I[x] . Char« = “ANSI MINV” 1000 t / s tChar= 0.01 I / I> (multiples of pickup) Fig.
Page 264 5 Protective Elements 5.8.1.2.3.2 Very Inverse [VINV] (IEEE C37.112) 5.8.1.2.3.2 Very Inverse [VINV] (IEEE C37.112) »I[x] . Char« = “ANSI VINV” 1000 t / s tChar= 0.01 I / I> (multiples of pickup) Fig. 78: VINV: reset delay (left half, I ...
Page 265 5 Protective Elements 5.8.1.2.3.3 Extremely Inverse - Characteristic (IEEE C37.112) 5.8.1.2.3.3 Extremely Inverse - Characteristic (IEEE C37.112) »I[x] . Char« = “ANSI EINV” 1000 t / s tChar= 0.01 I / I> (multiples of pickup) Fig. 79: EINV: reset delay (left half, I ...
Page 266 5 Protective Elements 5.8.1.2.4 Thermal Curves (Phase Current) 5.8.1.2.4 Thermal Curves (Phase Current) Thermal Tripping Times The thermal tripping times include Therm Flat, IT, I2T, and I4T. They are defined by the following equation: t = 5 ⋅ tChar ⋅ K ⎛...
Page 267 5 Protective Elements 5.8.1.2.4.1 Therm Flat [TF] - Characteristic 5.8.1.2.4.1 Therm Flat [TF] - Characteristic »Char« = Therm Flat 1000 t / s tChar= 0.05 0.01 I / In (multiples of the nominal current) Fig. 80: Therm Flat tripping curve. Note that only the range I > I is actually effective.
Page 268 5 Protective Elements 5.8.1.2.4.2 IT - Characteristic 5.8.1.2.4.2 IT - Characteristic »Char« = IT 1000 t / s tChar= 0.05 0.01 0.01 I / In (multiples of the nominal current) Fig. 81: IT tripping curve. Note that only the range I > I is actually effective.
Page 269 5 Protective Elements 5.8.1.2.4.3 I2T - Characteristic 5.8.1.2.4.3 I2T - Characteristic »Char« = I2T 1000 t / s tChar= 0.05 0.01 0.01 I / In (multiples of the nominal current) Fig. 82: I2T tripping curve. Note that only the range I > I is actually effective.
Page 270 5 Protective Elements 5.8.1.2.4.4 I4T - Characteristic 5.8.1.2.4.4 I4T - Characteristic »Char« = I4T 1000 t / s tChar= 0.05 0.01 0.01 I / In (multiples of the nominal current) Fig. 83: I4T tripping curve. Note that only the range I > I is actually effective.
Page 271: Functionality
5 Protective Elements 5.8.2 Functionality 5.8.2 Functionality I[1] ... [n] Pdoc_Y19 I = I[1]...[n] Please Refer To Diagram: Blockings IH2 . Active & I . IH2 Blo IH2 Blo Inactive & I . Alarm L1 Active & Please Refer To Diagram: IH2 &...
Page 272: Voltage Restraint Overcurrent
5 Protective Elements 5.8.3 51V - Voltage Restraint Overcurrent 5.8.3 51V - Voltage Restraint Overcurrent For activating this function, the parameter [Protection Para / Set 1…4 / I-Prot / I[x]] »VRestraint« has to be set to “Active” in the parameter set of the corresponding overcurrent element I[x].
Page 273 5 Protective Elements 5.8.3 51V - Voltage Restraint Overcurrent • %Pickup = 1 / V ⋅(V − V ) + 25%, if V < V < V • %Pickup = 100%, if V ≥ V The tripping curves (characteristics) are not influenced by the voltage restraint function. If the voltage transformer supervision is activated, the voltage restraint overcurrent protection element is blocked in case of m.c.b.
Page 274: I2> - Negative-Sequence Overcurrent [51Q]
5 Protective Elements 5.8.4 I2> – Negative-Sequence Overcurrent [51Q] 5.8.4 I2> – Negative-Sequence Overcurrent [51Q] For activating this function, the parameter [Protection Para / Set n / I-Prot / I[x]] »Measuring method« has to be set to “I2” in the parameter set of the corresponding overcurrent element I[x].
Page 275 5 Protective Elements 5.8.4 I2> – Negative-Sequence Overcurrent [51Q] I[1]...[n]: Measuring method = (I2>) Pdoc_Y10 I = I[1]...[n] Please Refer To Diagram: Blockings** (Stage is not deactivated and no active blocking signals) & I . IH2 Blo IH2 Blo Inactive &...
Page 276: Voltage Controlled Overcurrent Protection [51C]
5 Protective Elements 5.8.5 Voltage Controlled Overcurrent Protection [51C] 5.8.5 Voltage Controlled Overcurrent Protection [51C] When a short-circuit is near the generator, the voltage might drop down. By means of Adaptive Parameters (please refer to ╚═▷ “2.3.2 Adaptive Parameter Sets”) the tripping times or tripping characteristics can be modified by the output signal of a voltage element (depending on a threshold).
Page 277: I>> - Ioc Function
5 Protective Elements 5.8.6 I>> – IOC Function 5.8.6 I>> – IOC Function The instantaneous overcurrent function (IOC) or 50P is intended to protect in the event of a high-current fault. The example IOC setting used in the Motor Protection Curve (see the Motor Protection Curve Examples in the Ultimate Trip Current Section) is 12 times (1,200%) of FLA.
Page 278: Commissioning: Overcurrent Protection, Non-Directional [50, 51]
5 Protective Elements 5.8.7 Commissioning: Overcurrent Protection, non-directional [50, 51] 5.8.7 Commissioning: Overcurrent Protection, non-directional [50, 51] WARNING! Ensure that the actual overcurrent settings comply with the technical and thermal limits of the device, the CTs and the application! The MRMV4 allows for overcurrent settings that are out of the permitted range of current values.
Page 279: Commissioning: Overcurrent Protection, Non-Directional [Ansi 51V]
5 Protective Elements 5.8.8 Commissioning: Overcurrent Protection, Non-directional [ANSI 51V] Procedure Testing the threshold values (3 x single-phase and 1 x three-phase) Each time feed a current which is about 3-5% above the threshold value for activation/ tripping. Then check the threshold values. Testing the total tripping delay (recommendation) Measure the total tripping times at the auxiliary contacts of the CB (CB tripping).
Page 280 5 Protective Elements 5.8.8 Commissioning: Overcurrent Protection, Non-directional [ANSI 51V] Feed %Pickup voltage. For each test performed, feed a current that is about 3-5% above the threshold value for activation/tripping. Then check if the pickup values are %Pickup of the value according to the standard overcurrent protection. Testing the total tripping delay (recommendation) Measure the total tripping times at the auxiliary contacts of the breakers (breaker tripping).
Page 281: Commissioning: Negative Sequence Overcurrent
5 Protective Elements 5.8.9 Commissioning: Negative Sequence Overcurrent 5.8.9 Commissioning: Negative Sequence Overcurrent Object to be tested Signals to be measured for each current protection function: the threshold values, total tripping time (recommended), or alternatively tripping delays and the dropout ratios. NOTICE! It is recommended to measure the total tripping time instead of the tripping time.
Page 282: Ig - Ground (Earth) Overcurrent Protection [50N/G, 51N/G, 67N/G]
5 Protective Elements 5.9 IG – Ground (Earth) Overcurrent Protection [50N/G, 51N/G, 67N/G] IG – Ground (Earth) Overcurrent Protection [50N/G, 51N/G, 67N/G] The Ground Fault (Earth Overcurrent) module »IG« covers the following ANSI protection functions: • ANSI 50N/G • ANSI 51N/G NOTICE! All ground (earth) current elements are identically structured.
Page 283: Characteristics (Ground Current)
5 Protective Elements 5.9.1 Characteristics (Ground Current) Measuring Method For each protection element it can be defined via setting »Measuring method«, whether the measurement is done on basis of the “Fundamental” or if “True RMS” measurement is used. IG Source / VG Source The parameters »IG Source«...
Page 284 5 Protective Elements 5.9.1 Characteristics (Ground Current) ◦ Trip delay for IG > I , settable via [Protection Para / Set 1…4 / I-Prot / G> IG[x]] »t«. ◦ The reset delay for IG ...
Page 285 5 Protective Elements 5.9.1.1 DEFT – Definite Time-Overcurrent 5.9.1.1 DEFT – Definite Time-Overcurrent DEFT t / s IG> 0.01 IG / IGnom Trip delay for IG > I , settable via [Protection Para / Set 1…4 / I-Prot / IG[x]] »t«. G>...
Page 286: Inverse-Time Characteristics (Ground Current)
5 Protective Elements 5.9.1.2 Inverse-Time Characteristics (Ground Current) 5.9.1.2 Inverse-Time Characteristics (Ground Current) See also ╚═▷ “Explanation for All Characteristics” for more information. Characteris‐ Trip Delay Reset Delay (only for »Reset Mode« = »Char« “inverse time”) τ ⎛ ⎞ ⋅ tChar α...
Page 287 5 Protective Elements 5.9.1.2 Inverse-Time Characteristics (Ground Current) Characteris‐ Trip Delay Reset Delay (only for »Reset Mode« = »Char« “inverse time”) t = c ⋅ tChar⋅ K t = c ⋅ tChar⋅ K ⎛ ⎞ ⎝ IGnom ⎠ Therm Flat See also ╚═▷...
Page 288 5 Protective Elements 5.9.1.2.1 IEC 60255‑151 Curves (Ground Current) 5.9.1.2.1 IEC 60255‑151 Curves (Ground Current) 5.9.1.2.1.1 IEC Normal Inverse (IEC 60255‑151) »IG[x] . Char« = IEC NINV t / s tChar= 0.05 0.01 0.01 IG / IG> (multiples of pickup) Fig.
Page 289 5 Protective Elements 5.9.1.2.1.2 IEC Very Inverse [VINV] (IEC 60255‑151) 5.9.1.2.1.2 IEC Very Inverse [VINV] (IEC 60255‑151) »IG[x] . Char« = IEC VINV t / s tChar= 0.05 0.01 0.01 IG / IG> (multiples of pickup) Fig. 85: VINV: reset delay (left half, IG ...
Page 290 5 Protective Elements 5.9.1.2.1.3 IEC Extremely Inverse - Characteristic (IEC 60255‑151) 5.9.1.2.1.3 IEC Extremely Inverse - Characteristic (IEC 60255‑151) »IG[x] . Char« = IEC EINV 1000 t / s tChar= 0.01 0.05 0.01 IG / IG> (multiples of pickup) Fig. 86: EINV: reset delay (left half, IG <...
Page 291 5 Protective Elements 5.9.1.2.1.4 IEC Long Time Inverse - Characteristic [LINV] (IEC 60255‑151) 5.9.1.2.1.4 IEC Long Time Inverse - Characteristic [LINV] (IEC 60255‑151) »IG[x] . Char« = IEC LINV 1000 t / s tChar= 0.05 0.01 IG / IG> (multiples of pickup) Fig.
Page 292 5 Protective Elements 5.9.1.2.2 R Inverse [RINV] - Characteristic 5.9.1.2.2 R Inverse [RINV] - Characteristic »IG[x] . Char« = RINV t / s tChar= 0.05 0.01 IG / IG> (multiples of pickup) Fig. 88: RINV: reset delay (left half, IG ...
Page 293 5 Protective Elements 5.9.1.2.3 IEEE C37.112 Curves (Ground Current) 5.9.1.2.3 IEEE C37.112 Curves (Ground Current) 5.9.1.2.3.1 Moderately Inverse [MINV] - Characteristic (IEEE C37.112) »IG[x] . Char« = “ANSI MINV” 1000 t / s tChar= 0.01 IG / IG> (multiples of pickup) Fig.
Page 294 5 Protective Elements 5.9.1.2.3.2 Very Inverse [VINV] (IEEE C37.112) 5.9.1.2.3.2 Very Inverse [VINV] (IEEE C37.112) »IG[x] . Char« = “ANSI VINV” 1000 t / s tChar= 0.01 IG / IG> (multiples of pickup) Fig. 90: VINV: reset delay (left half, IG ...
Page 295 5 Protective Elements 5.9.1.2.3.3 Extremely Inverse - Characteristic (IEEE C37.112) 5.9.1.2.3.3 Extremely Inverse - Characteristic (IEEE C37.112) »IG[x] . Char« = “ANSI EINV” 1000 t / s tChar= 0.01 IG / IG> (multiples of pickup) Fig. 91: EINV: reset delay (left half, IG ...
Page 296 5 Protective Elements 5.9.1.2.4 RXIDG 5.9.1.2.4 RXIDG »IG[x] . Char« = RXIDG tChar= t / s 0.05 0.01 IG / IG> (multiples of pickup) Fig. 92: RXIDG: trip delay, IG > I G> ╚═▷ “Explanation for All Characteristics” ╚═▷ “5.9.1.2 Inverse-Time Characteristics (Ground Current)”...
Page 297 5 Protective Elements 5.9.1.2.5 Thermal Curves (Ground Current) 5.9.1.2.5 Thermal Curves (Ground Current) Thermal Tripping Times The thermal tripping times include Therm Flat, IT, I2T, and I4T. They are defined by the following equation: t = 5 ⋅ tChar ⋅ K ⎛...
Page 298 5 Protective Elements 5.9.1.2.5.1 Therm Flat [TF] - Characteristic 5.9.1.2.5.1 Therm Flat [TF] - Characteristic »IG[x] . Char« = Therm Flat 1000 t / s tChar= 0.05 0.01 IG / IGnom (multiples of the nominal current) Fig. 93: Therm Flat tripping curve, example diagram for measured (non-sensitive) earth/ground current (51G).
Page 299 5 Protective Elements 5.9.1.2.5.2 IT - Characteristic 5.9.1.2.5.2 IT - Characteristic »IG[x] . Char« = IT 1000 t / s tChar= 0.05 0.01 IG / IGnom (multiples of the nominal current) Fig. 94: IT tripping curve, example diagram for measured (non-sensitive) earth/ground current (51G).
Page 300 5 Protective Elements 5.9.1.2.5.3 I2T - Characteristic 5.9.1.2.5.3 I2T - Characteristic »IG[x] . Char« = I2T 1000 t / s tChar= 0.05 0.01 IG / IGnom (multiples of the nominal current) Fig. 95: I2T tripping curve, example diagram for measured (non-sensitive) earth/ground current (51G).
Page 301 5 Protective Elements 5.9.1.2.5.4 I4T - Characteristic 5.9.1.2.5.4 I4T - Characteristic »IG[x] . Char« = I4T 1000 t / s tChar= 0.05 0.01 IG / IGnom (multiples of the nominal current) Fig. 96: I4T tripping curve, example diagram for measured (non-sensitive) earth/ground current (51G).
Page 302: Ground (Earth) Overcurrent - Functionality
5 Protective Elements 5.9.2 Ground (Earth) Overcurrent – Functionality 5.9.2 Ground (Earth) Overcurrent – Functionality IG[1] ... IG[n] – Supervision Edoc_Y07 IG = IG[1] ... IG[n] Please Refer To Diagram: Blockings** (Stage is not deactivated and no active blocking signals) &...
Page 303 5 Protective Elements 5.9.2 Ground (Earth) Overcurrent – Functionality Prot – Earth fault – Alarm, Trip Edoc_Y16 IG . Superv. only & Alarm IG . Alarm & Trip IG . Trip & IG . TripCmd [*] Please Refer To Diagram: Trip blockings Tripping command deactivated or blocked.
Page 304: Special Notes On Earth Fault Current Transformers
5 Protective Elements 5.9.3 Special Notes on Earth Fault Current Transformers 5.9.3 Special Notes on Earth Fault Current Transformers Earth current measurement is usually been done with a summation current transformer (core-balance transformer). This CT has a large primary window through which all three- phase conductors can pass.
Page 305: Commissioning: Ground Fault Protection - Non-Directional [50N/G, 51N/G]
5 Protective Elements 5.9.4 Commissioning: Ground Fault Protection – non-directional [50N/G, 51N/G] 5.9.4 Commissioning: Ground Fault Protection – non-directional [50N/G, 51N/G] WARNING! In case of measured ground (earth) current: Ensure that the actual overcurrent settings comply with the technical and thermal limits of the device, the CTs and the application! The MRMV4 allows for settings that are out of the permitted range of current values.
Page 306: I2> And %I2/I1> - Unbalanced Load [46]
5 Protective Elements 5.10 I2> and %I2/I1> – Unbalanced Load [46] 5.10 I2> and %I2/I1> – Unbalanced Load [46] The »I2>« Current Unbalance module works similar to the »V012« Voltage Unbalance module. The positive and negative sequence currents are calculated from the 3-phase currents.
Page 307 5 Protective Elements 5.10 I2> and %I2/I1> – Unbalanced Load [46] = tripping delay in seconds. Trip = thermal load capability of the object while running with 100% unbalanced load current. This is an intrinsic property of the protected object, and therefore it must be set via the Setting Group parameter »K«.
Page 308: Commissioning: Current Unbalance Module
5 Protective Elements 5.10.1 Commissioning: Current Unbalance Module NOTICE! The heat (thermal) energy is an auxiliary value that is calculated and maintained internally, i. e. it can neither be displayed at the HMI nor be retrieved via any communication protocol. Functionality of the Unbalanced Load Module I2>...
Page 309 5 Protective Elements 5.10.1 Commissioning: Current Unbalance Module Necessary means: • Three-phase current source with adjustable current unbalance; and • Timer. Procedure: Check the phase sequence: • Ensure that the phase sequence is the same as that set in the field parameters. •...
Page 310 5 Protective Elements 5.10.1 Commissioning: Current Unbalance Module • For testing the threshold value, a current has to be fed to phase A which is lower than three times the adjusted threshold value »Threshold« (I2). • Feeding only phase A results in »%I2/I1 = 100%«, so the first condition »%I2/I1 >= 2%«...
Page 311: Voltage Protection [27,59]
5 Protective Elements 5.11 V - Voltage Protection [27,59] 5.11 V - Voltage Protection [27,59] CAUTION! If the VT measurement location is not at the bus bar side but at the output side, the following has to be taken into account: When disconnecting the line, or when the aux.
Page 312 5 Protective Elements 5.11 V - Voltage Protection [27,59] If phase voltages are applied to the measuring inputs of the device and field parameter »VT con« is set to “Phase to Ground”, the messages issued by the voltage protection module in case of actuation or trip should be interpreted as follows: •...
Page 313 5 Protective Elements 5.11 V - Voltage Protection [27,59] Measuring Method For all voltage protection elements the setting »Measuring method« specifies whether the measurement is done on basis of the “Fundamental” or if “True RMS” measurement is used. In addition to that a sliding average supervision “Vavg” can be parametrized. NOTICE! The required settings for the calculation of the “average value”...
Page 314 5 Protective Elements 5.11 V - Voltage Protection [27,59] CAUTION! If this minimum current check is active then you should be aware that without current flow, the undervoltage protection does not trip. So, depending on your application, there might be good reasons to not use this feature. Functionality and Tripping Logic For each of the voltage protection elements it can be defined if it picks up when over- or undervoltage is detected in one of three, two of three or in all three phases.
Page 315 5 Protective Elements 5.11.1 Commissioning: Overvoltage Protection [59] VProtection_Y02 V = V[1]...[n] Please Refer To Diagram: “VProtection_Y01” V . Alarm L1 Please Refer To Diagram: “VProtection_Y01” V . Alarm L2 Please Refer To Diagram: “VProtection_Y01” V . Alarm L3 V . Alarm &...
Page 316: Commissioning: Overvoltage Protection
5 Protective Elements 5.11.2 Commissioning: Undervoltage Protection [27] • Timer for measuring of the tripping time • Voltmeter Procedure (3 x single-phase, 1 x three-phase, for each element) Testing the threshold values For testing the threshold values and fallback values, the test voltage has to be increased until the relay is activated.
Page 317: Vg, Vx - Voltage Supervision (Residual Voltage Protection) [27A, 59A]
5 Protective Elements 5.12 VG, VX – Voltage Supervision (Residual Voltage Protection) [27A, 59A] 5.12 VG, VX – Voltage Supervision (Residual Voltage Protection) [27A, 59A] NOTICE! All elements of the voltage supervision of the fourth measuring input are identically structured. This protective element can be used to (depending on device planning and setting) for the following purposes: •...
Page 318 5 Protective Elements 5.12 VG, VX – Voltage Supervision (Residual Voltage Protection) [27A, 59A] VG – Supervision VeProtection_Y01 VG = VG[1]...[n] Please Refer To Diagram: Blockings (Stage is not deactivated and no active blocking signals) ≥1 & ≥1 ≥1 & &...
Page 319: Commissioning: Residual Voltage Protection - Measured [59N]
5 Protective Elements 5.12.1 Commissioning: Residual Voltage Protection – Measured [59N] ANSI 59N – Residual Voltage Protection (Measured or Calculated) This application option is set via the [Device planning] menu: • [Device planning] »VG[x] . Mode« = “V>” Options: • [Protection Para / Set 1…4 / V-Prot / VG[x]] »VX Source« = ◦...
Page 320: Commissioning: Residual Voltage Protection - Calculated [59N]
5 Protective Elements 5.12.2 Commissioning: Residual Voltage Protection – Calculated [59N] • 1-phase AC voltage source • Timer for measuring of the tripping time • Voltmeter Procedure (for each element) Testing the threshold values For testing the threshold and fallback values, the test voltage at the measuring input for the residual voltage has to be increased until the relay is activated.
Page 321 5 Protective Elements 5.12.2 Commissioning: Residual Voltage Protection – Calculated [59N] • Disconnect the phase voltage at two measuring inputs (symmetrical feeding at the secondary side has to be maintained). • Now the measuring value [Operation / Measured Values / Voltage] »VG calc« has to be about 0,57⋅Vn.
Page 322: F - Frequency [81O/U, 78, 81R]
5 Protective Elements 5.13 f – Frequency [81O/U, 78, 81R] 5.13 f – Frequency [81O/U, 78, 81R] NOTICE! All frequency protective elements are identically structured. Frequency – Measuring Principle NOTICE! The frequency is calculated as the average of the measured values of the three phase frequencies.
Page 323 5 Protective Elements 5.13 f – Frequency [81O/U, 78, 81R] Frequency Functions Due to its various frequency functions, the device is very flexible. That makes it suitable for a wide range of applications, where frequency supervision is an important criterion. In the Device Planning menu, the user can decide how to use each of the six frequency elements.
Page 324: Operating Modes "F<", "F
5 Protective Elements 5.13.1 Operating Modes “f<”, “f>” 5.13.1 Operating Modes “f<”, “f>” f< – Underfrequency This protection element provides a pickup threshold and a tripping delay. If the frequency falls below the set pickup threshold, an alarm will be issued instantaneously. If the frequency remains under the set pickup threshold until the tripping delay has elapsed, a tripping command will be issued.
Page 325 5 Protective Elements 5.13.1 Operating Modes “f<”, “f>” f[1]...[n] FreqProtection_Y02 f = f[1]...[n] Device planning Mode Freq. drop-off f< f> VT . f . Alarm f Stab. window f Φ Φ VL12 f< f> VL23 & Frequency calculation f . Alarm VL31 ◄...
Page 326: Operating Mode "Df/Dt
5 Protective Elements 5.13.2 Operating Mode “df/dt” 5.13.2 Operating Mode “df/dt” df/dt - Rate of Change of Frequency Electrical generators running in parallel with the mains, (e. g. industrial internal power supply plants), should be separated from the mains when failure in the intra-system occurs for the following reasons: •...
Page 327 5 Protective Elements 5.13.2 Operating Mode “df/dt” • Positive df/dt = the frequency element detects an increase in frequency • Negative df/dt = the frequency element detects a decrease in frequency and • Absolute df/dt (positive and negative) = the frequency element detects both, increase and decrease in frequency This protection element provides a tripping threshold and a tripping delay.
Page 328 5 Protective Elements 5.13.2 Operating Mode “df/dt” FreqProtection_Y03 f[1]...[n]: df/dt f = f[1]...[n] Please Refer To Diagram: Blockings (Stage is not deactivated and no active blocking signals) Device planning Mode df/dt VT . Stab. window f for df/dt VT . df/dt mode f .
Page 329: Operating Modes "F< And Df/Dt", "F> And Df/Dt
5 Protective Elements 5.13.3 Operating Modes “f< and df/dt”, “f> and df/dt” 5.13.3 Operating Modes “f< and df/dt”, “f> and df/dt” f< and df/dt – Underfrequency and Rate of Change of Frequency With this setting the frequency element supervises if the frequency falls below a set pickup threshold and if the frequency gradient exceeds a set threshold at the same time.
Page 330 5 Protective Elements 5.13.3 Operating Modes “f< and df/dt”, “f> and df/dt” f[1]...[n]: f< and df/dt Or f> and df/dt FreqProtection_Y04 f = f[1]...[n] Please Refer To Diagram: Blockings (Stage is not deactivated and no active blocking signals) Device planning f .
Page 331 5 Protective Elements 5.13.4 Operating Modes “f< and DF/DT”, “f> and DF/DT” 5.13.4 Operating Modes “f< and DF/DT”, “f> and DF/DT” f< and DF/DT – Underfrequency and DF/DT With this setting the frequency element supervises the frequency and the absolute frequency difference during a definite time interval.
Page 332 5 Protective Elements 5.13.4 Operating Modes “f< and DF/DT”, “f> and DF/DT” f[1]...[n]: f< and DF/DT Or f> and DF/DT FreqProtection_Y05 f = f[1]...[n] Please Refer To Diagram: Blockings (Stage is not deactivated and no active blocking signals) Device planning f .
Page 333 5 Protective Elements 5.13.4 Operating Modes “f< and DF/DT”, “f> and DF/DT” Trip Reset temporarily blocking f< MRMV4-3.7-EN-MAN MRMV4...
Page 334: Operating Mode "Delta Phi" - [Ansi 78V]
5 Protective Elements 5.13.5 Operating Mode “delta phi” – [ANSI 78V] 5.13.5 Operating Mode “delta phi” – [ANSI 78V] Delta phi - Vector Surge The vector surge supervision protects synchronous generators in mains parallel operation due to very fast decoupling in case of mains failure. Very dangerous are mains auto reclosings for synchronous generators.
Page 335 5 Protective Elements 5.13.5 Operating Mode “delta phi” – [ANSI 78V] Measuring Principle of Vector Surge Supervision ΔV̲ = I̲ 1 ⋅ j Xd I̲ 2 I̲ 1 V̲ P ∿ V̲ 1 Grid Z̲ Fig. 103: Equivalent circuit at synchronous generator in parallel with the mains. V̲...
Page 336 5 Protective Elements 5.13.5 Operating Mode “delta phi” – [ANSI 78V] ΔV̲ ′ = I̲ ′ 1 ⋅ j Xd I̲ ′ 1 V̲ P ∿ V̲ ′ 1 Grid Z̲ Fig. 105: Equivalent circuit at mains failure. In case of mains failure or auto reclosing the generator suddenly feeds a very high consumer load.
Page 337 5 Protective Elements 5.13.5 Operating Mode “delta phi” – [ANSI 78V] Voltage Vector Surge V(t) V(t)′ V(t) Trip Δt ~ delta phi Fig. 107: Voltage vector surge. As shown in the voltage/time diagram the instantaneous value of the voltage jumps to another value and the phase position changes. This is called phase or vector surge. The relay measures the cycle duration.
Page 338 5 Protective Elements 5.13.5 Operating Mode “delta phi” – [ANSI 78V] FreqProtection_Y01 f[1]...[n]: delta phi f = f[1]...[n] Please Refer To Diagram: Blockings (Stage is not deactivated and no active blocking signals) Field Para VT . delta phi - Mode Device planning one phase Mode...
Page 339: Commissioning: Overfrequency [F>]
5 Protective Elements 5.13.6 Commissioning: Overfrequency [f>] 5.13.6 Commissioning: Overfrequency [f>] Object to be tested All configured overfrequency protection stages. Necessary means • Three-phase voltage source with variable frequency and • Timer Procedure – Testing the threshold values • Keep on increasing the frequency until the respective frequency element is activated;...
Page 340: Commissioning: F< And -Df/Dt - Underfrequency And Rocof
5 Protective Elements 5.13.9 Commissioning: f< and -df/dt – Underfrequency and ROCOF Necessary means: • Three-phase voltage source and • Frequency generator that can generate and measure a linear, defined rate of change of frequency. Procedure – Testing the threshold values: •...
Page 341: Commissioning: F> And Df/Dt - Overfrequency And Rocof
5 Protective Elements 5.13.10 Commissioning: f> and df/dt – Overfrequency and ROCOF 5.13.10 Commissioning: f> and df/dt – Overfrequency and ROCOF Object to be tested All frequency protection stages that are projected as f> and df/dt. Necessary means • Three-phase voltage source and. •...
Page 342: Commissioning: F> And Df/Dt - Overfrequency And Df/Dt
5 Protective Elements 5.13.12 Commissioning: f> and DF/DT – Overfrequency and DF/DT 5.13.12 Commissioning: f> and DF/DT – Overfrequency and DF/DT Object to be tested: All frequency protection stages that are projected as f> and Df/Dt. Necessary means: • Three-phase voltage source and. •...
Page 343: 012 - Voltage Unbalance Protection [47]
5 Protective Elements 5.14 V 012 – Voltage Unbalance Protection [47] 5.14 V 012 – Voltage Unbalance Protection [47] Within the Device planning menu the module »V012« can be projected in order to supervise the positive phase sequence voltage for over- or undervoltage or the negative phase sequence system for overvoltage.
Page 344: Commissioning: Asymmetry Protection
5 Protective Elements 5.14.1 Commissioning: Asymmetry Protection V012[1]...[n] NPSU_Y01 V012 = V012[1]...[n] V012 . Meas Circuit Superv Inactive Active & ≥1 Please Refer To Diagram: Blockings (Stage is not deactivated and no active blocking signals) Φ Device planning V012 . Mode filter V1<...
Page 345 5 Protective Elements 5.14.1 Commissioning: Asymmetry Protection • 3-phase AC voltage source • Timer for measuring of the tripping time • Voltmeter Testing the tripping values (Example) Set the pickup value for the voltage in the negative phase sequence to 0.5 Vn. Set the tripping delay to 1 s.
Page 346: Pqs - Power [32, 37]
5 Protective Elements 5.15 PQS - Power [32, 37] 5.15 PQS - Power [32, 37] Each of the elements can be used as P<, P>, Pr>, Q<, Q>, Qr>, S< or S> within the device planning. P< and P> are settable and effective in positive active power range, Q< and Q> in positive reactive power range.
Page 347 5 Protective Elements 5.15 PQS - Power [32, 37] Pr> Qr> Functionality MRMV4-3.7-EN-MAN MRMV4...
Page 348: Setting The Thresholds
5 Protective Elements 5.15.1 Setting the Thresholds PQS[1]...[n] Power_Y01 PQS = PQS[1]...[n] Please Refer To Diagram: Blockings (Stage is not deactivated and no active blocking signals) & PQS . ≥1 MeasCircSv Volt Inactive Active & & PQS . MeasCircSv Curr Inactive &...
Page 349: Commissioning Examples For The Power Protection Module
5 Protective Elements 5.15.2 Commissioning Examples for the Power Protection Module • CurrentTransformer CT pri =200 A; CT sec = 5 A • VoltageTransformer VT pri = 10 kV; VT sec =100 V • Generator rated power 2 MVA • Reverse power should trip at 3%. Setting Example 1 for Pr>...
Page 350 5 Protective Elements 5.15.2 Commissioning Examples for the Power Protection Module • S> • S< Necessary means • 3-phase AC voltage source • 3-phase AC current source • Timer Procedure – Testing the wiring • Feed rated voltage and rated current to the measuring inputs of the relay. •...
Page 351 5 Protective Elements 5.15.2 Commissioning Examples for the Power Protection Module NOTICE! P> Testing the threshold values (Example, Threshold 1.1 Pn) • Feed rated voltage and 0.9 times rated current in phase to the measuring inputs of the relay (PF=1). •...
Page 352 5 Protective Elements 5.15.2 Commissioning Examples for the Power Protection Module NOTICE! Q> Testing the threshold values (Example, Threshold 1,1 Qn) • Feed rated voltage and 0.9 times rated current (90° phase shift) to the measuring inputs of the relay (PF=0). •...
Page 353 5 Protective Elements 5.15.2 Commissioning Examples for the Power Protection Module NOTICE! P< Testing the threshold values (Example, Threshold 0.3 Pn) • Feed rated voltage and rated current in phase to the measuring inputs of the relay (PF=1). • The measured values for the active power „P“ must show a positive algebraic sign. •...
Page 354 5 Protective Elements 5.15.2 Commissioning Examples for the Power Protection Module NOTICE! Q< Testing the threshold values (Example, Threshold 0.3 Qn) • Feed rated voltage and 0.9 times rated current (90° phase shift) to the measuring inputs of the relay (PF=0). •...
Page 355 5 Protective Elements 5.15.2 Commissioning Examples for the Power Protection Module NOTICE! Testing the threshold values (Example, Threshold 0.2 Pn) • Feed rated voltage and rated current with 180 degree phase shift between voltage and current pointers to the measuring inputs of the relay. •...
Page 356 5 Protective Elements 5.15.2 Commissioning Examples for the Power Protection Module NOTICE! Testing the threshold values (Example, Threshold 0.2 Qn) • Feed rated voltage and rated current with -90 degree phase shift between voltage and current pointers to the measuring inputs of the relay. •...
Page 357 5 Protective Elements 5.15.2 Commissioning Examples for the Power Protection Module NOTICE! S< Testing the threshold values • Feed 120% of the S< threshold to the measuring inputs of the relay. • Reduce the fed power slowly until the relay picks up. Compare the measured value at the time of tripping to the parameterized setting.
Page 358: Pf - Power Factor [55]
5 Protective Elements 5.16 PF - Power Factor [55] 5.16 PF - Power Factor [55] The module PF supervises the Power Factor within a defined area (limits). The area is defined by four parameters. • The Trigger quadrant (lead or lag). •...
Page 359: Commissioning: Power Factor [55]
5 Protective Elements 5.16.1 Commissioning: Power Factor [55] PF[1]...[n] PowerFactor_Y01 PF = PF[1]...[n] Please Refer To Diagram: Blockings (Stage is not deactivated and no active blocking signals) PF . Trig Mode I leads V I lags V PF . Measuring method PF .
Page 360 5 Protective Elements 5.16.1 Commissioning: Power Factor [55] • The following measuring values have to be shown:P=0.86 PnQ=0.5 QnS=1 Sn NOTICE! If the measured values are shown with a negative (algebraic) sign check the wiring. NOTICE! In this example PF-Trigger is set to 0.86 = 30° (lagging) and PF-Reset is set to 0.86 = 30° leading.
Page 361: Exp - External Protection
5 Protective Elements 5.17 ExP - External Protection 5.17 ExP - External Protection NOTICE! All 4 stages of the external protection ExP[1] … ExP[4] are identically structured. By using the module External Protection the following can be incorporated into the device function: trip commands, alarms and blockades of external protection facilities.
Page 362 5 Protective Elements 5.17.1 Commissioning: External Protection • [Protection Para / Global Prot Para / ExP / ExP[n]] »Trip« = “DI Slot X1 . DI 2” The same for the blocking parameters, for example: • [Protection Para / Global Prot Para / ExP / ExP[n]] »ExBlo1« = “DI Slot X1 . DI 3” Successful test result: All external pickups, external trips, and external blockings are correctly recognized and processed by the MRMV4.
Page 363: Rtd Protection Module [26/38/49]
5 Protective Elements 5.18 RTD Protection Module [26/38/49] 5.18 RTD Protection Module [26/38/49] General – Principle Use NOTICE! The Resistance-based Temperature Detector (RTD) Protection Module uses temperature data that are provided by a Universal Resistance-based Temperature Detector (URTD) module (please refer to ╚═▷...
Page 364 5 Protective Elements 5.18 RTD Protection Module [26/38/49] ◦ Measured temperature values can be found in menu branch [Operation / Measured Values / URTD] • The channels LoadBear1, LoadBear2 belong to the group “Temperature of the Load Bearing”: ◦ Settings can be made in menu branch [Protection Para / RTD / LoadBear 1 … 2] ◦...
Page 365 5 Protective Elements 5.18 RTD Protection Module [26/38/49] Alarm, Timeout Alarm and Trip Principle for each RTD Sensor RTD[1]...[n] RTD_Y01 For each channel [*1] RTD . Alarm RTD Temperature [*2] & RTD . RTD . Alarm Alarm Function Inactive RTD . t-Alarm-Delay Active RTD .
Page 366 5 Protective Elements 5.18 RTD Protection Module [26/38/49] RTD . Any Group RTD_Y02 All alarms, timeout alarms and trips of the groups are connected by an OR-gate in order to generate a group alarm, a group timeout alarm or and group trip. RTD .
Page 367 5 Protective Elements 5.18 RTD Protection Module [26/38/49] Collective Trip Signal By means of the trip command selection »TripCmdSelection« the user determines if the RTD element should use for the final trip signal the OR-connected default RTD trips or if the RTD element should use the OR-connected voting trips.
Page 368: Urtdii Module Interface
5 Protective Elements 5.19 URTDII Module Interface 5.19 URTDII Module Interface Principle – General Use The optional Universal Resistance-based Temperature Detector II (URTDII) Module provides temperature data to the protective device up to 12 RTDs embedded in the motor, generator, transformer, or cable connector and driven equipment. The temperature data will be shown as measured values and statistics in the Operating Data menu.
Page 369 5 Protective Elements 5.19 URTDII Module Interface The figure above shows the fiber optic connections between the URTDII Module and the protective device. The protective device supports the optical fiber connection. Preassembled plastic optical fibers with connectors can be ordered from any distributor of optical fiber products.
Page 370 5 Protective Elements 5.19 URTDII Module Interface RTD Channel URTDII Con‐ Terminals Temperature Monitoring nection Name Point (avail. signals see Reference Manual) MotBear1 Group Ⅱ, RTD7 J10B-19, RTD Temperature of the Motor J10B-20 Bearing (1) MotBear2 Group Ⅱ, RTD8 J10B-15, RTD Temperature of the Motor J10B-16 Bearing (2)
Page 371 5 Protective Elements 5.19 URTDII Module Interface See the figure above for wiring of RTDs to the URTD inputs. Use three-conductor shielded cable. Note the connection rules in the figure. When making connections to a two-lead RTD, connect two of the cable conductors to one of the RTD leads as shown. Make this connection as close to the protected object as possible.
Page 372: Supervision
5 Protective Elements 5.20 Supervision 5.20 Supervision 5.20.1 CBF – Circuit Breaker Failure [50BF*/62BF] * = only available in protective relays that offer current measurement. 5.20.1.1 Principle – General Use The »CBF« module is used to provide backup protection in the event that a breaker fails to operate properly during fault clearing.
Page 373 5 Protective Elements 5.20.1.1 Principle – General Use Start/Trigger of the CBF Timer The setting [Protection Para / Set 1…4 / Supervision / CBF] »t-CBF« defines a supervision time: The timer is started once the CBF module is triggered. Even if the trigger signal drops again, this timer continues.
Page 374 5 Protective Elements 5.20.1.1 Principle – General Use • “External TripCmds” — All external trips that are assigned to the breaker (within the trip manager, ╚═▷ “Trip Manager – Assignment of commands”) start the »CBF« module. You can find all external trips in the Reference Manual (MRMV4‑3.7‑EN‑REF), Chapter “Selection Lists”, as a table entitled “External TripCmds”.
Page 375: Functionality
5 Protective Elements 5.20.1.2 Functionality 5.20.1.2 Functionality Breaker Failure Protection for devices that offer current measurement CBF_Y01 * The Breaker Failure will be triggered only by those trip signals that are assigned onto the the breaker within theTrip Manager. Please Refer To Diagram: Blockings (Stage is not deactivated and no active blocking signals) CBF .
Page 376 5 Protective Elements 5.20.1.3 Commissioning Example: Supervision Scheme 50BF NOTICE! When testing, the applied test current must always be higher than the tripping threshold »I-CBF«. If the test current falls below the threshold while the breaker is in the “Off” position, no pickup will be generated. Procedure (Single-Phase): For testing the tripping time of the CBF protection, a test current has to be higher than the threshold value of one of the current protection modules that are assigned to trigger...
Page 377: Tcs - Trip Circuit Supervision [74Tc]
5 Protective Elements 5.20.2 TCS - Trip Circuit Supervision [74TC] 5.20.2 TCS - Trip Circuit Supervision [74TC] The trip circuit monitoring is used for monitoring if the trip circuit is ready for operations. The monitoring can be fulfilled in two ways. The first assumes only »Aux On (52a)« is used in the trip circuit.
Page 378: Commissioning: Trip Circuit Supervision [74Tc]
5 Protective Elements 5.20.2.1 Commissioning: Trip Circuit Supervision [74TC] Device digital input Trip CB & t-TCS ≥1 TCS . Alarm digital input & CB . Mode Closed Either trip coil L− Fig. 112: Connection example: Trip circuit supervision with two CB auxiliary contacts »Aux ON«...
Page 379 5 Protective Elements 5.20.2.1 Commissioning: Trip Circuit Supervision [74TC] Procedure, part 1 Simulate failure of the control voltage in the power circuits. Successful test result, part 1 After expiry of »t-TCS« the trip circuit supervision TCS of the device should signal an alarm.
Page 380: Cts - Current Transformer Supervision [60L]
5 Protective Elements 5.20.3 CTS - Current Transformer Supervision [60L] 5.20.3 CTS - Current Transformer Supervision [60L] Wire breaks and failures within measuring circuits cause current transformer failures. The module »CTS« can detect a failure of the CT if the calculated earth current does not match the measured one.
Page 381: Commissioning: Current Transformer Failure Supervision
5 Protective Elements 5.20.3.1 Commissioning: Current Transformer Failure Supervision limit value Kd · Imax ΔI Imax CAUTION! If the current is measured in two phases only (for instant only IL1/IL3) or if there is no separate earth current measuring (e.g. normally via a cable-type CT), the supervision function should be deactivated.
Page 382 5 Protective Elements 5.20.3.1 Commissioning: Current Transformer Failure Supervision Procedure, part 1 • Set the limiting value of the CTS to »delta I=0.1*In«. • Feed a three-phase, symmetrical current system (approx. nominal current) to the secondary side. • Disconnect the current of one phase from one of the measuring inputs (the symmetrical feeding at secondary side has to be maintained).
Page 383: Lop - Loss Of Potential [60]
5 Protective Elements 5.20.4 LOP – Loss of Potential [60] 5.20.4 LOP – Loss of Potential [60] 5.20.4.1 Loss of Potential - Evaluating Measured Quantities NOTICE! Ensure that the LOP has enough time to block faulty tripping of modules that use LOP. That means, the delay time of the LOP should to be shorter than the tripping delay of modules that use LOP.
Page 384: Loss Of Potential - Fuse Failure
5 Protective Elements 5.20.4.2 Loss of Potential - Fuse Failure • Set the parameter »Measuring Circuit Supervision=active« within those protective elements that should be blocked by the Loss of Potential supervision. 5.20.4.2 Loss of Potential - Fuse Failure VT Supervision via digital inputs (Fuse Failure) The module »LOP«...
Page 385 5 Protective Elements 5.20.4.2 Loss of Potential - Fuse Failure LOP_Y01 LOP . Ex FF VT-I LOP . Ex FF VT 1..n, Assignment List & LOP . Ex FF VT LOP . LOP . Ex FF EVT-I Ex FF EVT &...
Page 386: Commissioning: Loss Of Potential
5 Protective Elements 5.20.4.3 Commissioning: Loss of Potential • [**] For devices with more than one CT, “CT” denotes the one at the side to which the VT is connected. 5.20.4.3 Commissioning: Loss of Potential Object to be tested Test of the module LOP. Necessary means •...
Page 387 5 Protective Elements 5.20.4.4 Commissioning: Loss of Potential (FF via DI) Procedure • Turn off the automatic circuit breaker of the VTs (all poles to be dead) Successful test result: • The state of the respective digital input changes. • All protective elements are blocked which should not have an unwanted operation caused by a fuse failure »Measuring Circuit Supervision=active«.
Page 388: Phase Sequence Supervision
5 Protective Elements 5.20.5 Phase Sequence Supervision 5.20.5 Phase Sequence Supervision The MRMV4 calculates the phase sequence at each measuring input (based on positive- sequence and negative-sequence components). The calculated phase sequence (i. e. „ACB“ or „ABC“) is permanently compared with the setting that has been made at [Field Para / General Settings] »Phase Sequence«.
Page 389: Control / Switchgear-Manager
6 Control / Switchgear-Manager Control / Switchgear-Manager WARNING! Misconfiguration of switchgear could result in death or serious injury. This e. g. is the case when opening a disconnector under load or when switching a ground connector to live parts of a system. Beside protection functions, protective relays more and more will take care about controlling switchgear, like breakers, load break switches, disconnectors and ground connectors.
Page 390 6 Control / Switchgear-Manager 6.1 Switchgear Control Page - Page Editor Switchgear Control ettings Help Representation of a Switchgear in the Page Editor Instances Circuit Breaker 1 Module TextSG Feeder (small) 1 Line 1 Line 2 Fig. 115: Control Page Example, with the “Circuit Breaker” being highlighted. Line 3 Line Head Although a switchgear always appears using a fixed representation in the Page Editor,...
Page 391: Switchgear Control
6 Control / Switchgear-Manager 6.1 Switchgear Control Local 0.000 A 0.000 A 0.000 A CLOSE Fig. 118: Control Page Example, with the “Circuit Breaker” in open position. Switchgear with the Property “Break Capability” For each switchgear you can define in the Page Editor the “Break Capability” property. If this is set then you declare that the switchgear is a circuit breaker, that is capable to switch off the phase currents in case of a protection trip.
Page 392 6 Control / Switchgear-Manager 6.1 Switchgear Control Therefore the Page Editor allows for changing the assignment to a particular switchgear number: Select the menu item [Configuration / Switching Device Order...] (keyboard- shortcut: »F6«). This open a dialog window where all configured switchgear devices are listed with their respective number.
Page 393: Settings Within The Protection Device
6 Control / Switchgear-Manager 6.1.1 Settings within the Protection Device 6.1.1 Settings within the Protection Device Assignment of Position Indications (Digital Inputs) Settings in the device menu [Control / SG / SG[x] / Pos Indicatrs Wirng]: • »Aux ON« — The CB is in ON-position if the state of the assigned signal is true (52a). Exception: For the Earthing Switch part of the “Three Position Switch”, this is...
Page 394 6 Control / Switchgear-Manager 6.1.1 Settings within the Protection Device Interlockings Only available if the switchgear has been set “Controlled” in the Page Editor (see ╚═▷ ““Controlled” Switchgear”). Settings in the device menu [Control / SG / SG[x] / Interlockings]: •...
Page 395: Switch
6 Control / Switchgear-Manager 6.1.2 Switch 6.1.2 Switch Generic switching device. [Operation / Status Display / Control / SG[x]] »Pos« = 0 (Pos Indeterm) = 1 (Pos OFF) = 2 (Pos ON) = 3 (Pos Disturb) Assignment of Position Indications (Digital Inputs) ╚═▷...
Page 396: Invisible Switch
6 Control / Switchgear-Manager 6.1.3 Invisible Switch 6.1.3 Invisible Switch Switching device which is not visible on the single-line diagram, but available in the protection device. (Since it is not existing on the single-line, it cannot be selected via the HMI (panel), and therefore cannot be operated manually.) [Operation / Status Display / Control / SG[x]] »Pos«...
Page 397: Circuit Breaker
6 Control / Switchgear-Manager 6.1.4 Circuit Breaker 6.1.4 Circuit Breaker Switching device, capable of making, carrying and breaking currents under normal conditions and also making, carrying for a specified duration and breaking currents under specified abnormal conditions (e.g. short circuit). [Operation / Status Display / Control / SG[x]] »Pos«...
Page 398: Circuit Breaker1
6 Control / Switchgear-Manager 6.1.5 Circuit Breaker1 6.1.5 Circuit Breaker1 Switching device, capable of making, carrying and breaking currents under normal conditions and also making, carrying for a specified duration and breaking currents under specified abnormal conditions (e.g. short circuit). [Operation / Status Display / Control / SG[x]] »Pos«...
Page 399: Disconnector (Isolator)
6 Control / Switchgear-Manager 6.1.6 Disconnector (Isolator) 6.1.6 Disconnector (Isolator) Switching device which provides, in the open position, an isolating distance. [Operation / Status Display / Control / SG[x]] »Pos« = 0 (Pos Indeterm) = 1 (Pos OFF) = 2 (Pos ON) = 3 (Pos Disturb) Assignment of Position Indications (Digital Inputs) ╚═▷...
Page 400: Disconnector-Earthing Combination
6 Control / Switchgear-Manager 6.1.7 Disconnector-Earthing Combination 6.1.7 Disconnector-Earthing Combination A switch which combines a disconnector and an earthing switch. This switch has two positions (connected – earthed). [Operation / Status Display / Control / SG[x]] »Pos« = 0 (Pos Indeterm) = 1 (Pos OFF) = 2 (Pos ON) = 3 (Pos Disturb)
Page 401: Earthing Switch
6 Control / Switchgear-Manager 6.1.8 Earthing Switch 6.1.8 Earthing Switch Earthing Switch with short-circuit making capacity. [Operation / Status Display / Control / SG[x]] »Pos« = 0 (Pos Indeterm) = 1 (Pos OFF) = 2 (Pos ON) = 3 (Pos Disturb) Assignment of Position Indications (Digital Inputs) ╚═▷...
Page 402: Fuse-Load Switch
6 Control / Switchgear-Manager 6.1.9 Fuse-Load Switch 6.1.9 Fuse-Load Switch Switching device capable of making, carrying and breaking normal currents, in which a fuse-link forms the moving contact. [Operation / Status Display / Control / SG[x]] »Pos« = 0 (Pos Indeterm) = 1 (Pos OFF) = 2 (Pos ON) = 3 (Pos Disturb)
Page 403: Fuse-Load Switch - Disconnector
6 Control / Switchgear-Manager 6.1.10 Fuse-Load Switch – Disconnector 6.1.10 Fuse-Load Switch – Disconnector Switching device capable of making, carrying and breaking normal currents. Satisfies in the open position the isolating requirements for a disconnector, in which a fuse-link forms the moving contact. [Operation / Status Display / Control / SG[x]] »Pos«...
Page 404: Fused-Disconnector (Isolator)
6 Control / Switchgear-Manager 6.1.11 Fused-Disconnector (Isolator) 6.1.11 Fused-Disconnector (Isolator) Switching device which provides, in the open position, an isolating distance, in which a fuse-link forms the moving contact. [Operation / Status Display / Control / SG[x]] »Pos« = 0 (Pos Indeterm) = 1 (Pos OFF) = 2 (Pos ON) = 3 (Pos Disturb)
Page 405: Load Switch
6 Control / Switchgear-Manager 6.1.12 Load Switch 6.1.12 Load Switch Switching device capable of making, carrying and breaking normal currents. [Operation / Status Display / Control / SG[x]] »Pos« = 0 (Pos Indeterm) = 1 (Pos OFF) = 2 (Pos ON) = 3 (Pos Disturb) Assignment of Position Indications (Digital Inputs) ╚═▷...
Page 406: Load Switch - Disconnector
6 Control / Switchgear-Manager 6.1.13 Load Switch – Disconnector 6.1.13 Load Switch – Disconnector Switching device capable of making, carrying and breaking normal currents. Satisfies in the open position the isolating requirements for a disconnector. [Operation / Status Display / Control / SG[x]] »Pos« = 0 (Pos Indeterm) = 1 (Pos OFF) = 2 (Pos ON)
Page 407: Three Position Switch
6 Control / Switchgear-Manager 6.1.14 Three Position Switch 6.1.14 Three Position Switch A switch which combines a disconnector and an earthing switch. This switch has three positions (connected – disconnected – earthed) and is intrinsically safe against maloperation. [Operation / Status Display / Control / …] [SG[1]] »Pos«...
Page 408 6 Control / Switchgear-Manager 6.1.14 Three Position Switch Earthing Switch, e. g. »SG[2]«: [Control / SG / SG[2] / Pos Indicatrs Wirng] »Aux GROUND« »Aux OFF« »Ready« »Removed« ✔ ✔ — — MRMV4 MRMV4-3.7-EN-MAN...
Page 409: Withdrawable Circuit Breaker
6 Control / Switchgear-Manager 6.1.15 Withdrawable Circuit Breaker 6.1.15 Withdrawable Circuit Breaker Truck mounted (“Draw-Out”) circuit breaker. [Operation / Status Display / Control / SG[x]] »Pos« (*) »Removed« (*) the same value for both switchgears – see also remark below. = 0 (Pos = 1 (Pos OFF) = 2 (Pos ON)
Page 410 6 Control / Switchgear-Manager 6.1.15 Withdrawable Circuit Breaker Movable Truck, e. g. »SG[2]«: [Control / SG / SG[2] / Pos Indicatrs Wirng] »Aux ON« »Aux OFF« »Ready« »Removed« ✔ ✔ — — MRMV4 MRMV4-3.7-EN-MAN...
Page 411: Withdrawable Fuse Load Switch
6 Control / Switchgear-Manager 6.1.16 Withdrawable Fuse Load Switch 6.1.16 Withdrawable Fuse Load Switch Truck mounted fuse load switch. [Operation / Status Display / Control / SG[x]] »Pos« (*) »Removed« (* the same value for both switchgears – see also remark below.) = 0 (Pos = 1 (Pos OFF) = 2 (Pos ON)
Page 412: Switchgear Configuration
6 Control / Switchgear-Manager 6.2 Switchgear Configuration Movable Truck, e. g. »SG[2]«: [Control / SG / SG[2] / Pos Indicatrs Wirng] »Aux ON« »Aux OFF« »Ready« »Removed« ✔ ✔ — — Switchgear Configuration Wiring At first the switchgear positioning indicators have to be connected to the digital inputs of the protection device.
Page 413 6 Control / Switchgear-Manager 6.2 Switchgear Configuration in the devices display. Each position change of a switchgear results in a change of the corresponding switchgear symbol. NOTICE! It is recommended for the detection of a switchgear's position to always use both positioning indicators! If only one contact is used, no intermediate or disturbed positions can be detected.
Page 414 6 Control / Switchgear-Manager 6.2 Switchgear Configuration States of the Digital Validated Breaker Positions Inputs Aux ON-I Aux OFF-I Pos ON Pos OFF Indeterm Disturb (while a (while a Moving Moving Indeterm timer is timer is running) running) (while a (while a Moving Moving...
Page 415 6 Control / Switchgear-Manager 6.2 Switchgear Configuration Disturb« and the signal »Pos Indeterm« disappears. After the moving time has elapsed, the timer »t-Dwell« is started (if set). During this time interval the Position Indication also indicates an »Pos Indeterm« state. When the »t-Dwell« has elapsed the Position Indication changes to »Pos ON«.
Page 416 6 Control / Switchgear-Manager 6.2 Switchgear Configuration States of the Digital Validated Breaker Positions Inputs Aux ON-I Aux OFF-I Pos ON Pos OFF Indeterm Disturb OFF« is OFF« is running) running) Not wired Pos OFF Not wired Pos ON If there is no digital input assigned to the »Aux OFF« contact, the position indication »Pos«...
Page 417 6 Control / Switchgear-Manager 6.2 Switchgear Configuration Switchgear_Y02 Trip command assigned and Protection issues Trip Command (e.g. configured within the Trip manager SG . TripCmd Overcurrent module) SG . OFF incl TripCmd & Inactive Active SG . OFF incl TripCmd SG .
Page 418 6 Control / Switchgear-Manager 6.2 Switchgear Configuration Signal Breaker CLOSE Breaker OPEN Command Signal Breaker OPEN Breaker CLOSE Command Signal Breaker Ready Protection Trip Command Trigger [x] Position Indication: Trigger [x] OPEN, CLOSE, Indeterminated, Trigger [x] Disturbed SCADA Trip Command 50P[x] Trip Command 51P[x] Autoreclosure CLOSE Trip Command XX[x]...
Page 419 6 Control / Switchgear-Manager 6.2 Switchgear Configuration In addition to that, the user can set the minimum hold time of the trip command within this module and define whether the trip command is latched or not (see also ╚═▷ “Latching”). Switchgear_Y11 SG[x] .
Page 420 6 Control / Switchgear-Manager 6.2 Switchgear Configuration Ex CLOSE / OPEN If it is required that the switchgear be opened or closed by an external signal, the user can assign one signal that triggers the CLOSE and one signal that triggers the OPEN command (e. g.
Page 421: Switchgear Wear
6 Control / Switchgear-Manager 6.3 Switchgear Wear • “timeout”: Non interlocked switching for a certain time The set time for non-interlocked switching is set at the parameter »Timeout NonIL« and applies also for the “single Operation” mode. Non-interlocked switching can also be activated by assigning a signal to »Timeout NonIL«. Manual Manipulation of the Switchgear Position In case of faulty position indication contacts (Aux contacts) or broken wires, the position indication resulted from the assigned signals can be manipulated (overwritten) manually,...
Page 422 6 Control / Switchgear-Manager 6.3 Switchgear Wear At [Control / SG[x] / SG Wear] »Isum Intr Alarm«, the user can set a threshold for the maximum allowed sum of interrupt currents. If this threshold is exceeded a related alarm signal is set at [Operation / Status Display / Control / SG[x]] »Isum Intr trip«, plus the respective phase-selective signals »Isum Intr trip: Ixx«.
Page 423 6 Control / Switchgear-Manager 6.3 Switchgear Wear 10000 10000 20.0 20.0 Interrupted Current in kA per operation Fig. 121: Breaker Maintenance Curve for a typical 25kV Circuit Breaker MRMV4-3.7-EN-MAN MRMV4...
Page 424: Control - Example: Switching Of A Circuit Breaker
6 Control / Switchgear-Manager 6.4 Control - Example: Switching of a Circuit Breaker Control - Example: Switching of a Circuit Breaker The following example shows how to switch a circuit breaker via the HMI at the device. By pressing the »CTRL« key you enter a screen Local showing the single line, and you have direct 0.000 A...
Page 425 6 Control / Switchgear-Manager 6.4 Control - Example: Switching of a Circuit Breaker The Softkey “SG” takes you to a screen that lists all connected switchgear devices. (For HighPROTEC devices of type »MC…«, up to 6 switchgear devices are supported. A device of type »MR…«...
Page 426: System Alarms
7 System Alarms System Alarms NOTICE! Please note that Power Protection and (Active/Reactive/Apparent) Power Demand is only available within Protective Devices that offer current and voltage measurement. After activation (via [Device planning] »SysA . Mode« = “use”) the user can configure within the System Alarms menu [SysA]: •...
Page 427 7 System Alarms 7.1 Demand Management Within the menu [Operation / Statistics / Demand], the actual average (demand) values can be seen. (See also ╚═▷ “2.7 Statistics”.) Configuring the Demand Configuring the demand is a two step procedure. Proceed as follows. Step1: Configure the general settings within the [Device Para / Statistics / Demand] menu: •...
Page 428: Min. And Max. Values
7 System Alarms 7.2 Min. and Max. Values Average Calculation Average Calculation Average Calculation Average Calculation Duration Duration Duration Average Calculation Average Calculation Average Calculation Average Calculation t-Delay Alarm Average Calculation Fig. 123: Window configuration = fixed Step 2: • In addition, the Demand specific settings have to be configured in the [SysA] menu. •...
Page 429: Thd Protection
7 System Alarms 7.3 THD Protection Min. and Max. Values Within [Operation] menu the minimum (min.) and maximum (max.) values can be seen. (See also ╚═▷ “2.7 Statistics”.) Minimum values since last reset: The minimum values are continuously compared to the last minimum value for that measuring value.
Page 430: Recorders
8 Recorders Recorders The MRMV4 features several Recorders that collect log messages of particular types (in some non-volatile memory): • The Self-Supervision Messages (╚═▷ “10.2 Self-Supervision Messages”) collects device-internal messages of various types. These can be, for example, security- related events (e. g. if a wrong password has been entered), or Troubleshooting messages that are directly related to the functionality of the device.
Page 431 8 Recorders Moreover, a double-click on this summary within the Trend Recorder window in Smart view enables the user to save all data in an *.HptTr file that can be opened in the DataVisualizer PC software for graphical analysis. MRMV4-3.7-EN-MAN MRMV4...
Page 432: Disturbance Recorder
8 Recorders 8.1 Disturbance Recorder Disturbance Recorder • Disturbance records can be downloaded (read out) by means of the parameter setting and evaluation software Smart view. • The disturbance records can be viewed and analyzed within the DataVisualizer. (This is a tool that is always installed along with Smart view). •...
Page 433 8 Recorders 8.1 Disturbance Recorder (via parameters »Pre-trigger time« and »Post-trigger time«) in percent of the »Max file size« value. To trigger the disturbance recorder, up to 8 signals can be selected. The trigger signals are OR-linked. If a disturbance record has been written, a new disturbance record cannot be triggered until all trigger signals that have triggered the previous disturbance record are gone.
Page 434 8 Recorders 8.1 Disturbance Recorder ≥1 Start: 1Trigger Start: 2Trigger Start: 3Trigger Start: 4Trigger ≥1 Recording Start: 5Trigger Start: 6Trigger Start: 7Trigger Start: 8Trigger Man Trigger MRMV4 MRMV4-3.7-EN-MAN...
Page 435 8 Recorders 8.1 Disturbance Recorder Start 1 = Prot.Alarm Start 2 = -.- Start 3 = -.- Start 4 = -.- Start 5 = -.- Start 6 = -.- Start 7 = -.- Start 8 = -.- Auto overwriting = Active Post-trigger time = 25% t-rec = Max file size Pre-trigger time = 15%...
Page 436 8 Recorders 8.1 Disturbance Recorder Start 1 = Prot.Trip Start 2 = -.- Start 3 = -.- Start 4 = -.- Start 5 = -.- Start 6 = -.- Start 7 = -.- Start 8 = -.- t-rec < Max file size Auto overwriting = Active Post-trigger time = 25% Start 1...
Page 437: Fault Recorder
8 Recorders 8.2 Fault Recorder Fault Recorder Purpose of the Fault Recorder The Fault Recorder provides compressed information about faults (e.g. Trip Causes). The compressed information can be read also at the HMI. This might be helpful for fast fault analysis.
Page 438: Behavior Of The Fault Recorder
8 Recorders 8.2.1 Behavior of the Fault Recorder Popup pops up on the display. Prot . Alarm Signal: General Alarm Fault duration Prot . Trip Signal: General Trip Time to trip Analog values (recording) t-meas-delay=0 t-meas-delay>0 Capture Data Capture Data Fig.
Page 439 8 Recorders 8.2.1 Behavior of the Fault Recorder If it is required that a fault record be written even if a general alarm has not lead to a trip, the parameter [Device Para / Recorders / Fault rec / ] »Fault rec . Record-Mode« has to be set to “Alarms and Trips”.
Page 440: Fault Display Screen (Overlay / Pop-Up) On The Display
8 Recorders 8.2.2 Fault Display screen (Overlay / Pop-up) on the Display 8.2.2 Fault Display screen (Overlay / Pop-up) on the Display Fault rec 1 Trip 50P[1] Fault type Smart view 50P[1].I> 2 In Fault rec RecordNo Fault No. Gridfault No. Date of Record Pickup Trip...
Page 441: Content Of A Fault Record
8 Recorders 8.2.3 Content of a Fault Record 8.2.3 Content of a Fault Record A fault record comprises information about: Part 1: Common Information (independent of protection function) Date and Time Date and Time of the Fault Fault No. This counter will be incremented with each fault (»Prot . Alarm«) No.
Page 442 8 Recorders 8.2.4 Check the Fault Recorder at the Panel of the MRMV4 Navigation within the Fault recorder Softkey Next (upper) item within this fault record. ▲ Previous fault record. ▶▶▎ Next (lower) item within this fault record. ▼ How to Read Out the Fault Recorder at the Panel In order to read out a fault record there are two options available: •...
Page 443: Event Recorder
8 Recorders 8.3 Event Recorder Event Recorder The event recorder can register up to 300 events and the last (minimum) 50 saved events are recorded fail-safe. The following information is provided for any of the events: Events are logged as follows: Record No.
Page 444: Trend Recorder
8 Recorders 8.4 Trend Recorder Trend Recorder Read the Trend Recorder The Trend Recorder saves measured data in their time development. • Enter the menu branch [Operation / Recorders / Trend rec]. • On the panel you can see a summary (timestamp, number of entries). Due to the technical restrictions of the LCD display it is not possible to see any details of the recorded data.
Page 445: Motor Start Recorder
8 Recorders 8.5 Motor Start Recorder Motor Start Recorder Manage Motor Start Records The Motor Start Recorder logs information during a motor start-up. These records are stored in a fail-safe manner and the capacity allows for recording up to 5 start-ups. After 5 start-ups, every following start-up overwrites the recording of the oldest one (“First in First out”...
Page 446 8 Recorders 8.5 Motor Start Recorder • If the data has not been downloaded from the device yet, select the menu item “Receive Start Recorder” in the “Device” menu. • Within the navigation tree, go to the [Operation / Recorders] menu. Here the user will find the »Start rec«...
Page 447 8 Recorders 8.5 Motor Start Recorder View motor start data graphically in the DataVisualizer software. In the DataVisualizer software the user can view the RMS value of the phase currents, thermal capacity used, and temperatures measured by the URTD module if a URTD is installed and attached to the relay.
Page 448: Statistic Recorder
8 Recorders 8.6 Statistic Recorder Statistic Recorder The Statistic Recorder shows motor specific statistical data on a monthly base. The Statistic Recorder can record up to 24 monthly reports. The reports are power fail safe stored. In order to view information from the Statistic Recorder, the user has to select [Operation / Recorders / Statistic rec] from the menu tree.
Page 449: History Function
8 Recorders 8.7 History Function History Function The History function, accessible under the menu branch [Operation / History], can be utilized as a counter or log of specific occurrences monitored by the MRMV4. There are the following groups, each dedicated to a particular type of occurrence that can be recorded: •...
Page 450: Programmable Logic
9 Programmable Logic Programmable Logic General Description The MRMV4 includes programmable Logic Equations for programming output relays, blocking of protective functions and custom logic functions in the relay. The logic provides control of the output relays based on the state of the inputs that can be chosen from the assignment list (protective function pickups, protective function states, breaker states, system alarms and module inputs –...
Page 451 9 Programmable Logic LogicMain_Y02 LE = LE[1]...[n] LE . Input1 no assignment 1..n, Assignment List LE . Inverting1 Active Inactive LE . LE . Gate Out Gate Input2 no assignment 1..n, Assignment List LE . Timer Out NAND LE . Inverting2 Active Delay Timer...
Page 452 9 Programmable Logic Input Signals The user can assign up to 4 Input signals (from the assignment list) to the inputs of the gate. As an option, each of the 4 input signals can be inverted (negated) Timer Gate (On Delay and Off Delay) The output of the gate can be delayed.
Page 453 9 Programmable Logic LogicMain_E04 Update within the same Update within the next evaluation cycle evaluation cycle (1 cycle delay) LE1 . Input1 LE1 . Input1 LE1 . Input2 LE1 . Input2 Output 1 Output 1 LE1 . Input3 LE1 . Input3 LE1 .
Page 454 9 Programmable Logic LogicMain_E05 Update within the same evaluation cycle Update within the next evaluation cycle (1 cycle delay) LE1 . Input1 LE1 . Input1 LE1 . Input2 LE1 . Input2 Output 1 Output 1 LE1 . Input3 LE1 . Input3 LE1 .
Page 455 9 Programmable Logic • If required, configure the timers (»LEx.t-On Delay« and »LEx.t-Off Delay«). • If the latched output signal is used assign a reset signal to the reset input. • In case that Logic Equations should be cascaded the user has to be aware of timing delays (cycles) in case of descending sequences.
Page 456: Self-Supervision
10 Self-Supervision Self-Supervision The protection devices apply various check routines during normal operation and during the start-up phase to supervise themselves for faulty operation. Self-Supervision within the devices Supervision of... Supervised by... Action on detected issue... Start phase The duration (permitted time) The device will be rebooted.
Page 457 10 Self-Supervision Self-Supervision within the devices Supervision of... Supervised by... Action on detected issue... parameter setting for detailed information. Quality of the power supply A hardware circuit ensures If the supply voltage is too low, that the device can only be the device will not start up or used, if the power supply is in it will be set out of service...
Page 458 10 Self-Supervision Self-Supervision within the devices Supervision of... Supervised by... Action on detected issue... refer to chapter ╚═▷ “4.3 61850”. MRMV4 MRMV4-3.7-EN-MAN...
Page 459: Device Start (Reboot)
10 Self-Supervision 10.1 Device Start (Reboot) 10.1 Device Start (Reboot) The device reboots in any of the following situations: • It is connected to the supply voltage, • the user initiates (intentionally) a restart of the device, • the device is set back to factory defaults, •...
Page 460 10 Self-Supervision 10.1 Device Start (Reboot) Device Start-up Codes Reboot due to unknown error source. Forced Reboot (initiated by the main processor) The main processor identified invalid conditions or data. Exceeded Time Limit of the Protection Cycle Unexpected interruption of the Protection Cycle. Forced Reboot (initiated by the digital signal processor) The digital signal processor identified invalid conditions or data.
Page 461 10 Self-Supervision 10.2 Self-Supervision Messages 10.2 Self-Supervision Messages The menu [Operation / Self-Supervision / Messages] gives access to the list of Self- Supervision messages. In particular, it is recommended to check these in case of some problem directly related to the functionality of the MRMV4. The Self-Supervision collects various security-related messages (e. g.
Page 462: Syslog
10 Self-Supervision 10.3 Syslog Checking the Self-Supervision messages using Smart view is more convenient (see example figure below) than using the HMI: All messages are listed in one dialog window. There are buttons in the toolbar of this dialog that allow for restricting the list to particular severity types: It is possible to e. g.
Page 463 10 Self-Supervision 10.3 Syslog • [Device Para / Security / Syslog] »IP address, part 1« … »IP address, part 4« — These four parameters specify the IP address of the server computer, i. e. each setting is an integer number from 0 to 255. MRMV4-3.7-EN-MAN MRMV4...
Page 464: Device Taken Out Of Service ("Device Stopped")
Service Staff. NOTICE! In such a case please contact the SEG Service Staff and provide them the error code. For further information on trouble shooting please refer to the separately provided Troubleshooting Guide.
Page 465: Commissioning
11 Commissioning Commissioning Before starting work on an opened switchboard it is imperative that the complete switchboard is dead and the following 5 safety regulations are always met: , DANGER! Safety precautions: • Disconnect from the power supply • Secure against reconnection •...
Page 466: Commissioning/Protection Test
11 Commissioning 11.1 Commissioning/Protection Test NOTICE! The permissible deviations of measuring values and device adjustment are dependent on the technical data/tolerances. 11.1 Commissioning/Protection Test WARNING! Putting into operation/Protection test must be carried out by authorized and qualified personnel. Before the device is put into operation the related documentation has to be read and understood.
Page 467: Putting Out Of Operation - Plug Out The Relay
11 Commissioning 11.2 Putting out of Operation – Plug out the Relay NOTICE! Any description of functions, parameters, inputs or outputs that does not match the device in hand, can be ignored. CAUTION! In most countries, there are specific national regulations and standards about functional and protection tests that must be carried out on a regular basis.
Page 468: Service And Commissioning Support
11 Commissioning 11.3 Service and Commissioning Support 11.3 Service and Commissioning Support Within the service menu various functions support maintenance and commissioning of the device. 11.3.1 General Within the menu [Service / General], the user can initiate a reboot of the device. The »System OK«...
Page 469: Disarming The Relay Output Contacts
11 Commissioning 11.3.4 Disarming the Relay Output Contacts • Forcing a single relay »Force ORx«; and • Forcing an entire group of relay output contacts »Force all Outs«. Forcing an entire group takes precedence over forcing a single relay output contact! NOTICE! A relay output contact will NOT follow a force command as long as it is disarmed at the same time.
Page 470: Forcing Rtds
11 Commissioning 11.3.5 Forcing RTDs* Within this mode [Service / Test (Prot inhibit) / DISARMED] entire groups of relay output contacts can be disarmed: • Permanent; or • Via timeout. If they are set with a timeout, they will only keep their “Disarm Position” as long as this timer runs.
Page 471: Forcing Analog Outputs
11 Commissioning 11.3.6 Forcing Analog Outputs* • Permanent; or • Via timeout. If they are set with a timeout, they will keep their “Forced Temperature” only as long as this timer runs. If the timer expires, the RTD will operate normally. If they are set as »Permanent«, they will keep the “Forced Temperature”...
Page 472: Fault Simulator (Sequencer)
11 Commissioning 11.3.7 Fault Simulator (Sequencer)* 11.3.7 Fault Simulator (Sequencer)* * = Availability depends on ordered device. For commissioning support and in order to analyze failures, the protective device offers the option to simulate measuring quantities. [After setting Device planning] »Mode« = “use”, the simulation menu can be found within the menu branch [Service / Test (Prot inhibit) / Sgen].
Page 473 11 Commissioning 11.3.7 Fault Simulator (Sequencer)* Within the menu branch [Service / Test (Prot inhibit) / Sgen / Configuration / Times], the duration of each sequence can be set. In addition, the measuring quantities to be simulated can be determined (e. g.: voltages, currents, and the corresponding angles) for each phase (and ground).
Page 474 11 Commissioning 11.3.7 Fault Simulator (Sequencer)* The trip command (»TripCmd«) of all protection functions is blocked. The protection function will possibly trip but not generate a trip command. • Set [Service / Test (Prot inhibit) / Sgen / Process] »TripCmd Mode« = “No TripCmd” Hot Simulation Simulation is authorized to trip the breaker: •...
Page 475: Servicing And Maintenance
12 Servicing and Maintenance Servicing and Maintenance CAUTION! In most countries, there are specific national regulations and standards about functional and protection tests that must be carried out on a regular basis. These must be followed in addition to the routine functional tests described in ╚═▷...
Page 476 12.1 Routine Functional Tests Battery In general the battery lasts more than 10 years. Exchange by SEG. Notice: The battery serves as buffering of the clock (real-time clock). There's no impact on the functionality of the device if the battery breaks down, except for the buffering of the clock while the unit is in de-energized condition.
Page 477: Technical Data, Specifications, Tolerances
13 Technical Data, Specifications, Tolerances 13.1 Technical Data Technical Data, Specifications, Tolerances 13.1 Technical Data NOTICE! Use copper conductors only, 75°C. Conductor size AWG 14 [2.5 mm²]. 13.1.1 Climatic and Environmental Data Storage Temperature: −30°C to +70°C (−22°F to 158°F) Operating Temperature: −20°C to +60°C (−4°F to 140°F) Permissible Humidity at Ann.
Page 478: Housing
13 Technical Data, Specifications, Tolerances 13.1.5 Housing All wire-bound communication interfaces: 1.5 kVDC 13.1.5 Housing Housing B2: Height / Width: 183 mm (7.205 in.) / 212.7 mm (8.374 in.) (8 Pushbottons / Door Mounting) Housing B2: Height / Width: 173 mm (4 HE) / 212.7 mm (42 TE) (8 Pushbottons / 19“) Housing Depth (Incl.
Page 479 13 Technical Data, Specifications, Tolerances 13.1.6 Current Measurement Connection Cross Sections: 1 x or 2 x 2.5 mm² (2 x AWG 14) with wire end ferrule 1 x or 2 x 4.0 mm² (2 x AWG 12) with ring cable sleeve or cable sleeve 1 x or 2 x 6 mm²...
Page 480: Voltage And Residual Voltage Measurement
13 Technical Data, Specifications, Tolerances 13.1.7 Voltage and Residual Voltage Measurement Sensitive Ground Current Inputs: At 0.1 A: S = 7 mVA At 5 A: S = 870 mVA At 0.5 A: S = 10 mVA 13.1.7 Voltage and Residual Voltage Measurement Voltage Measuring Card “TU”...
Page 481: Frequency Measurement
13 Technical Data, Specifications, Tolerances 13.1.8 Frequency Measurement Connection Cross Sections: • Connection cross section, without wire end ferrule: min. 0.75 mm² (AWG 18) … max. 6.0 mm² (AWG 10) • Connection cross section, with wire end ferrule (with or without plastic sleeve): min.
Page 482: Power Consumption
13 Technical Data, Specifications, Tolerances 13.1.10 Power Consumption 13.1.10 Power Consumption Power Supply Range Power consumption in Idle Max. Power Consumption Mode 24 - 270 VDC: Approx. 8 W Approx. 13 W 48 - 230 VAC Approx. 8 W / 16 VA Approx.
Page 483: Digital Inputs
13 Technical Data, Specifications, Tolerances 13.1.16 Digital Inputs Voltage mode Range: 0-10 V, maximum output current 1 mA Accuracy 0.5% of the nominal value 20 mA resp. 10 V Influence of temperature to accuracy <1% Test voltage of outputs (one group) against 2.5 kV other electrical groups Test voltage of outputs (one group) against...
Page 484: Binary Output Relays
13 Technical Data, Specifications, Tolerances 13.1.17 Binary Output Relays Un = 24 VDC Switching Threshold 1 ON: Min. 19.2 VDC Switching Threshold 1 OFF: Max. 9.6 VDC Un = 48 V / 60VDC Switching Threshold 2 ON: Min. 42.6 VDC Switching Threshold 2 OFF: Max.
Page 485: Supervision Contact (Sc)
13 Technical Data, Specifications, Tolerances 13.1.18 Supervision Contact (SC) Operating time: (*) typ. 7 ms Reset time: (*) typ. 3 ms Contact type: 1 changeover contact or normally open or normally closed Terminals: Screw-type terminals (*) The operating and reset times are the pure hardware-related switching times (coil – making/breaking contact), i. e.
Page 486: Urtd-Interface
13 Technical Data, Specifications, Tolerances 13.1.21 URTD-Interface * CAUTION! In case that the RS485 interface has terminals, the communication cable has to be shielded. 13.1.21 URTD-Interface * (Slot X102, availability depends on the ordered device type.) Connector: Versatile Link Compatible Fiber: 1 mm Wavelength: 660 nm...
Page 487: Fiber Optic Module With St Connector For Scada Communication
13 Technical Data, Specifications, Tolerances 13.1.22 Fiber Optic Module with ST connector for SCADA Communication * 13.1.22 Fiber Optic Module with ST connector for SCADA Communication * (Slot X103, availability depends on the ordered device type.) Please note: The transmission speed of the optical interfaces is limited to 3 MBaud for Profibus.
Page 488: Smart View Connections
13 Technical Data, Specifications, Tolerances 13.1.24 Smart view Connections 13.1.24 Smart view Connections The MRMV4 can communicate with the operating software Smart view as follows: • USB connection (using the USB interface at the front of the MRMV4). • TCP/IP connection (using the Ethernet* interface at the rear side of the MRMV4). (*availability depends on device) There can be max.
Page 489: Setting Ranges
13 Technical Data, Specifications, Tolerances 13.2 Setting Ranges 13.2 Setting Ranges All settings are listed, each with its range and default value, in the Reference manual (separate document). For example: Measuring principle, threshold range for Phase Overcurrent protection: • See Reference manual, “Protection Parameter” → “Phase Overcurrent Stage” → “Setting Group Parameters”, tables »Measuring method«, »I>«.
Page 490: Specifications / Tolerances
13 Technical Data, Specifications, Tolerances 13.3 Specifications / Tolerances 13.3 Specifications / Tolerances 13.3.1 Specifications of the Real Time Clock Resolution: 1 ms Tolerance: <1 minute / month (+20°C [68°F]) <±1ms if synchronized via IRIG-B Time Synchronization Tolerances The different protocols for time synchronisation vary in their accuracy: Used Protocol Time drift over one Deviation to time generator...
Page 491: Specifications Of The Measured Value Acquisition
13 Technical Data, Specifications, Tolerances 13.3.2 Specifications of the Measured Value Acquisition 13.3.2 Specifications of the Measured Value Acquisition Phase and Ground Current Measuring Frequency Range: 50 Hz / 60 Hz ± 10% Accuracy: Class 0.5 Amplitude Error if I < In: ±0.5% of the rated current Amplitude Error if I >...
Page 492 13 Technical Data, Specifications, Tolerances 13.3.2 Specifications of the Measured Value Acquisition Frequency Measurement Nominal frequency: 50 Hz / 60 Hz Precision: ±0.05% of fN within the range of 40 ‒ 70 Hz at voltages >50 V Voltage dependency: frequency acquisition from 0.15 x Vn Energy Measurement Energy counter error: 1.5% of the measured energy or 1.5% SN⋅1h...
Page 493: Protection Elements Accuracy
13 Technical Data, Specifications, Tolerances 13.3.3 Protection Elements Accuracy 13.3.3 Protection Elements Accuracy NOTICE! The tripping delay relates to the time between alarm and trip. The accuracy of the operating time relates to the time between fault entry and the time when the protection element is picked-up.
Page 494 13 Technical Data, Specifications, Tolerances 13.3.3.1 Phase Overcurrent Protection Overcurrent Protection Elements I[x] Accuracy Inverse-Time / Characteristic curve Start time (pickup time) <36 ms At testing current ≥ 2 times threshold value Tripping delay t(I, I>, tChar) ±5% (according to the selected curve, see ╚═▷...
Page 495: Earth (Ground) Overcurrent Protection
13 Technical Data, Specifications, Tolerances 13.3.3.2 Earth (Ground) Overcurrent Protection 13.3.3.2 Earth (Ground) Overcurrent Protection Earth Overcurrent Protection Accuracy Elements IG[x] Threshold value »IG>« ±1.5% of the setting value or ±1% In. Dropout Ratio 97% or 0.5% In Earth Overcurrent Protection Accuracy Elements IG[x] Definite time...
Page 496 13 Technical Data, Specifications, Tolerances 13.3.3.2 Earth (Ground) Overcurrent Protection • For earth current sensitive the precision does not depend on the nominal value but is referenced to 100 mA (with In = 1 A) respectively 500 mA (with In = 5 A) MRMV4 MRMV4-3.7-EN-MAN...
Page 497: Thermal Protection
13 Technical Data, Specifications, Tolerances 13.3.3.3 Thermal Protection 13.3.3.3 Thermal Protection RTD Protection: Accuracy RTD / URTD Trip Threshold ±1°C (1.8°F) Alarm Threshold ±1°C (1.8°F) t-delay Alarm DEFT ±1% or ±10 ms Reset Hysteresis −2°C (−3.6°F) of threshold ±1°C (1.8°F) MRMV4-3.7-EN-MAN MRMV4...
Page 498: Motor Protection
13 Technical Data, Specifications, Tolerances 13.3.3.4 Motor Protection 13.3.3.4 Motor Protection Motor Protection: Accuracy Stop Declaration <50 ms Time period current must drop below STPC ±1.5% of the setting value or 1% In Anti Backspin ±1 s Blocking time to allow for back spin TBS Timer ±1 s Time between repeated starts.
Page 499 13 Technical Data, Specifications, Tolerances 13.3.3.4 Motor Protection Start Delay Timers Accuracy Start Delay (common timers) ±1% or ±10 ms Operating Times for IOC, GOC, Power, JAM <35 ms for Underload, Undervoltage, Overvoltage, <60 ms Frequency, Generic 1-5 Thermal Model Accuracy Trip Threshold ±2%...
Page 500: Current-Related Protection
13 Technical Data, Specifications, Tolerances 13.3.3.5 Current-Related Protection 13.3.3.5 Current-Related Protection Current unbalance: Accuracy I2>[x] I2> ±2% of the setting value or 1% In Dropout Ratio 97% or 0.5% In %(I2/I1) ±1% DEFT ±1% or ±10 ms Operating Time <70 ms Disengaging Time <50 ms ±5% INV...
Page 501: Voltage-Related Protection
13 Technical Data, Specifications, Tolerances 13.3.3.6 Voltage-Related Protection 13.3.3.6 Voltage-Related Protection Voltage Protection: Accuracy V[x] Pickup ±1.5% of the setting value or 1% Vn Dropout Ratio Adjustable, at least 0.5% Vn DEFT ±1% or ±10 ms Operating Time <40 ms typical: 35 ms Starting from V higher than 1.2 x pickup value for V>...
Page 502 13 Technical Data, Specifications, Tolerances 13.3.3.6 Voltage-Related Protection Voltage unbalance: Accuracy V012[x] Threshold ±2% of the setting value or 1% Vn Dropout Ratio 97% or 0.5% Vn for V1> or V2> 103% or 0.5% Vn for V1< %(V2/V1) ±1% DEFT ±1% or ±10 ms Operating Time <60 ms...
Page 503: Frequency Protection
13 Technical Data, Specifications, Tolerances 13.3.3.7 Frequency Protection 13.3.3.7 Frequency Protection (Over / Under) Frequency Protection: Accuracy f>, f< f> / f< ±20 mHz Typically ~5 mHz if the 3 phases are between fN ± 0.2 Hz Dropout Default 20 mHz (adjustable in the range 10 mHz …...
Page 504 13 Technical Data, Specifications, Tolerances 13.3.3.7 Frequency Protection Rate of Change of Frequency: Accuracy df/dt df/dt *2) *3) ±2.5% or ±0.025 Hz/s Dropout 0.070 Hz/s ±1% or ±10 ms Operating Time <300 ms, typically ~200 ms <200 ms, using these setting values: »Stab.
Page 505: Power-Related Protection
13 Technical Data, Specifications, Tolerances 13.3.3.8 Power-Related Protection 13.3.3.8 Power-Related Protection Power Factor: Accuracy Trigger-PF ± 0.01 (absolute) or ±1° Reset-PF ± 0.01 (absolute) or ±1° ±1% or ±10 ms Operating time »Measuring method« = • “Fundamental” • <130 ms •...
Page 506 13 Technical Data, Specifications, Tolerances 13.3.3.8 Power-Related Protection Directional Power Protection: Accuracy PQS[x] with »Mode« = “P>”, “P<”, “Pr<”, “Pr>” Threshold ±3% or ±0.1% SN Dropout Ratio • 97% or 1 VA for “P>” and “Pr>” • 103% or 1 VA for “P<” and “Pr<” for setting values ≤...
Page 507 13 Technical Data, Specifications, Tolerances 13.3.3.8 Power-Related Protection • Common reference conditions: at |PF|>0.5, symmetrically fed, at fN and 0.8 - 1.3 x Vn (Vn = 100 V) MRMV4-3.7-EN-MAN MRMV4...
Page 508: Miscellaneous Protection And Supervision
13 Technical Data, Specifications, Tolerances 13.3.3.9 Miscellaneous Protection and Supervision 13.3.3.9 Miscellaneous Protection and Supervision Circuit Breaker Failure Protection: Accuracy t-CBF ±1% or ±10 ms I-CBF > ±1.5% of the setting value or 1% In Operating Time <40 ms Starting from I higher than 1.3 x I-CBF > Disengaging Time <40 ms Trip Circuit Monitoring:...
Page 509: Appendix
14 Appendix 14.1 Standards Appendix 14.1 Standards 14.1.1 Approvals UL File Nr.: E217753 certified regarding UL508 (Industrial Controls) CSA File Nr.: 251990 certified regarding CSA-C22.2 No. 14 (Industrial Controls) certified by EAC (Eurasian Conformity) KEMA Laboratories — Type tested and certified in accordance with the complete type test requirements of IEC 60255‑1:2009.
Page 510 14 Appendix 14.1.2 Design Standards 14.1.2 Design Standards Generic standard EN 61000-6-2 , 2005 EN 61000-6-3 , 2006 Product standard IEC 60255-1; 2009 IEC 60255-26, 2013 IEC 60255-27, 2013 UL 508 (Industrial Control Equipment), 2005 CSA C22.2 No. 14-95 (Industrial Control Equipment),1995 ANSI C37.90, 2005 MRMV4 MRMV4-3.7-EN-MAN...
Page 511: Electrical Tests
14 Appendix 14.1.3 Electrical Tests 14.1.3 Electrical Tests High Voltage Tests High Frequency Interference Test IEC 60255-22-1 Within one circuit 1 kV / 2 s IEC 60255-26 IEEE C37.90.1 IEC 61000-4-18 Circuit to ground 2.5 kV / 2 s class 3 Circuit to circuit 2.5 kV / 2 s Insulation Voltage Test...
Page 512 14 Appendix 14.1.3 Electrical Tests Fast Transient Disturbance Immunity Test (Burst) class 4 Surge Immunity Test (Surge) IEC 60255-22-5 Within one circuit 2 kV Circuit to ground 4 kV IEC 60255-26 IEC 61000-4-5 class 4 class 3 Communication cables to ground 2 kV Electrical Discharge Immunity Test (ESD) IEC 60255-22-2...
Page 513 14 Appendix 14.1.3 Electrical Tests EMC Emission Tests Radio Interference Suppression Test IEC/CISPR 22 150kHz – 30MHz Limit value class B IEC 60255-26 Radio Interference Radiation Test IEC/CISPR 11 30MHz – 1GHz Limit value class A IEC 60255-26 MRMV4-3.7-EN-MAN MRMV4...
Page 514 14 Appendix 14.1.4 Environmental Tests 14.1.4 Environmental Tests Classification IEC 60068-1 Climatic Classification 20/060/56 IEC 60721-3-1 Classification of ambient conditions 1K5/1B1/1C1L/1S1/1M2 but (Storage) min. −30°C (−22°F) IEC 60721-3-2 Classification of ambient conditions 2K2/2B1/2C1/2S1/2M2 but (Transportation) min. −30°C (−22°F) IEC 60721-3-3 Classification of ambient conditions 3K6/3B1/3C1/3S1/3M2 but (Stationary use at weather protected...
Page 515 14 Appendix 14.1.4 Environmental Tests Test BD: Dry Heat Transport and storage test IEC 60255-27 Temperature 70°C test duration 16 h IEC 60068-2-2 Test AB: Cold Transport and storage test IEC 60255-27 Temperature −30°C test duration 16 h IEC 60068-2-1 MRMV4-3.7-EN-MAN MRMV4...
Page 516: Mechanical Tests
14 Appendix 14.1.5 Mechanical Tests 14.1.5 Mechanical Tests Test Fc: Vibration Response Test IEC 60068-2-6 (10 Hz – 59 Hz) 0.035 mm (0.0014 in.) IEC 60255-27 Displacement IEC 60255-21-1 (59Hz – 150Hz) 0.5 gn class 1 Acceleration Number of cycles in each axis Test Fc: Vibration Endurance Test IEC 60068-2-6 (10 Hz –...
Page 517 14 Appendix 14.1.5 Mechanical Tests Test Fe: Earthquake Test 1 sweep per axis MRMV4-3.7-EN-MAN MRMV4...
Page 518: Iec 60870-103 Interoperability
14 Appendix 14.2 IEC 60870‑103 Interoperability 14.2 IEC 60870‑103 Interoperability The selected parameters have been marked as follows: ☐ Function or ASDU is not used ☒ Function or ASDU is used as standardized (default) The possible selection (blank “☐” / X “☒”) is specified for each specific clause or parameter.
Page 519: Selection Of Standard Information Numbers In Monitor Direction
14 Appendix 14.2.3.2 Selection of standard information numbers in monitor direction 14.2.3.2 Selection of standard information numbers in monitor direction System functions in monitor direction: ☒ INF = 0 — End of general interrogation ☒ INF = 0 — Time synchronization ☒...
Page 520: Selection Of Standard Information Numbers In Control Direction
14 Appendix 14.2.3.3 Selection of standard information numbers in control direction 14.2.3.3 Selection of standard information numbers in control direction System functions in control direction: ☒ INF = 0 — Initiation of general ☒ INF = 0 — Time synchronization interrogation Generic commands in control direction: ☒...
Page 521 14 Appendix 14.2.3.4 Miscellaneous 14.2.3.4 Miscellaneous Measurand max. value = rated value × Current L ☐ ☒ Current L ☐ ☒ Current L ☐ ☒ Voltage L ☐ ☒ 1–E Voltage L ☐ ☒ 2–E Voltage L ☐ ☒ 3–E Voltage L –L ☐...
Page 522: Iec 60870-5-104 Interoperability
14 Appendix 14.3 IEC 60870‑5‑104 Interoperability 14.3 IEC 60870‑5‑104 Interoperability This companion standard presents sets of parameters and alternatives from which subsets must be selected to implement particular telecontrol systems. Certain parameter values, such as the choice of “structured” or “unstructured” fields of the INFORMATION OBJECT ADDRESS of ASDUs represent mutually exclusive alternatives.
Page 523: Physical Layer
14 Appendix 14.3.3 Physical layer 14.3.3 Physical layer (network-specific parameter, all interfaces and data rates that are used are to be marked “X”) Transmission speed (control direction) ■ 100 bit/s ■ 2400 bit/s ■ 2400 bit/s ■ 200 bit/s ■ 4800 bit/s ■...
Page 524: Application Layer
14 Appendix 14.3.5 Application layer When using an unbalanced link layer, the following ASDU types are returned in class 2 messages (low priority) with the indicated causes of transmission: ■ The standard assignment of ASDUs to class 2 messages is used as follows: Type identification Cause of transmission 9, 11, 13, 21...
Page 525 14 Appendix 14.3.5 Application layer Selection of standard ASDUs Process information in monitor direction (station-specific parameter, mark each Type ID “X” if it is only used in the standard direction, “R” if only used in the reverse direction, and “B” if used in both directions). <1>...
Page 526 14 Appendix 14.3.5 Application layer <37> := Integrated totals with time tag CP56Time2a M_IT_TB_1 ☐ <38> := Event of protection equipment with time tag CP56Time2a M_EP_TD_1 ☐ <39> := Packed start events of protection equipment with time tag M_EP_TE_1 CP56Time2a ☐...
Page 527 14 Appendix 14.3.5 Application layer <100> := Interrogation command C_IC_NA_1 ☐ <101> := Counter interrogation command C_CI_NA_1 ☐ <102> := Read command C_RD_NA_1 <103> := Clock synchronization command (option) C_CS_NA_1 ■ <104> := Test command C_TS_NA_1 <105> := Reset process command C_RP_NA_1 ■...
Page 528 14 Appendix 14.3.5 Application layer Mark Type Identification/Cause of transmission combinations: • “X” if only used in the standard direction; • “R” if only used in the reverse direction; • “B” if used in both directions. Type Cause of Transmission Identification 10 11 12 13 20 44 45 46 47...
Page 529 14 Appendix 14.3.5 Application layer Type Cause of Transmission Identification 10 11 12 13 20 44 45 46 47 … … <34> M_ME_TD_1 ▤ ▤ [X] ▤ ☐ ▤ ▤ ▤ ▤ ▤ ▤ ▤ ▤ ▤ ▤ ▤ ▤ ▤...
Page 530: Basic Application Functions
14 Appendix 14.3.6 Basic application functions Type Cause of Transmission Identification 10 11 12 13 20 44 45 46 47 … … <107>C_TS_TA_1 ▤ ▤ ▤ ▤ ▤ ☐ ☐ ▤ ▤ ▤ ▤ ▤ ▤ ▤ ▤ ☐ ☐ ☐...
Page 531 14 Appendix 14.3.6 Basic application functions Spontaneous transmission Double transmission of information objects with cause of transmission spontaneous (station-specific parameter, mark each information type “X” where both a Type ID without time and corresponding Type ID with time are issued in response to a single spontaneous change of a monitored object) The following type identifications may be transmitted in succession caused by a single status change of an information object.
Page 532 14 Appendix 14.3.6 Basic application functions ☐ Direct set point command transmission Select and execute command ☐ Select and execute set point command C_SE_ACTTERM used ☐ No additional definition Short-pulse duration (duration determined by a system parameter in the outstation) ☐...
Page 533 14 Appendix 14.3.6 Basic application functions ☐ High limit for transmission of measured values Parameter activation (object-specific parameter, mark “X” if function is only used in the standard direction, “R” if only used in the reverse direction, and “B” if used in both directions). ☐...
Page 534 14 Appendix 14.3.6 Basic application functions Parameter Default Remarks Selected value value 10 s Time-out for acknowledges in case of no data 10 s (fixed) messages t < t 20 s Time-out for sending test frames in case of a long 20 s (fixed) idle state Maximum number of outstanding I format APDUs k and latest acknowledge...
Page 535: Abbreviations, And Acronyms
14 Appendix 14.4 Abbreviations, and Acronyms 14.4 Abbreviations, and Acronyms The following abbreviations and acronyms are used in this manual. °C Degrees Celsius °F Degrees Fahrenheit Ampere(s), Amp(s) Alternating current Ack. Acknowledge Logical gate (The output becomes true if all Input signals are true.) ANSI American National Standards Institute avg.
Page 536 14 Appendix 14.4 Abbreviations, and Acronyms Current Transformer Supervision Current transformer supervision D-Sub-Plug Communication interface Direct current DEFT Definite time characteristic (Tripping time does not depend on the height of the current.) delta phi Vector surge df/dt Rate-of-frequency-change Digital Input Diagn Cr Diagnosis counter(s) Diagn.
Page 537 14 Appendix 14.4 Abbreviations, and Acronyms Hour Human machine interface (Front of the protective relay) Manufacturer internal product designation Hertz Phase Overcurrent Stage Fault current Current I-BF Tripping threshold Zero current (symmetrical components) Positive sequence current (symmetrical components) Negative sequence current (symmetrical components) I2>...
Page 538 14 Appendix 14.4 Abbreviations, and Acronyms incl. Include, including InEn Inadvertent Energization Info. Information Interl. Interlocking Intertripping Intertripping Inverse characteristic (The tripping time will be calculated depending on the height of the current) Calculated (residual) ground current IRIG Input for time synchronization (Clock) IRIG-B IRIG-B-Module Thermal Characteristic...
Page 539 14 Appendix 14.4 Abbreviations, and Acronyms max. Maximum meas Measured min. Minimum min. Minute MINV Moderately Inverse Tripping Characteristic Manufacturer Internal Product Designation Code Millimeter Memory mapping unit Milli-second(s) Medium voltage Milli volt amperes (Power) N.C. Not connected N.O. Normal open (Contact) NINV Normal inverse tripping characteristic Newton-meter...
Page 540 14 Appendix 14.4 Abbreviations, and Acronyms PSet Parameter set Parameter set switch (Switching from one parameter set to another) Reverse Reactive Power Q->&V< Undervoltage and Reactive Power Direction Protection Reset rec. Record Relative Reset ResetFct Reset function RevData Review data Root mean square Reset Temperature Protection Module...
Page 541 14 Appendix 14.4 Abbreviations, and Acronyms Trip circuit supervision Thermal replica module Manufacturer internal product designation code TripCmd Trip command Text Underwriters Laboratories DEFT (definite time tripping characteristic) Universal serial bus Voltage-stage Volts V/f> Overexcitation V012 Symmetrical Components: Supervision of the Positive Phase Sequence or Negative Phase Sequence Vac / V ac Volts alternating current...
Page 542: List Of Ansi Codes
14 Appendix 14.5 List of ANSI Codes 14.5 List of ANSI Codes (This list is essentially based on IEEE Std C37.2‑2008.) IEEE C37.2 / MRMV4 Functions ANSI Underspeed Distance Protection Phase Distance Protection Overexcitation Protection (Volts per Hertz) Synchronizing or Synchronizm-check via 4th measuring channel of voltage measurement card Temperature Protection Undervoltage Protection...
Page 543 14 Appendix 14.5 List of ANSI Codes IEEE C37.2 / MRMV4 Functions ANSI 50BF Breaker Failure Instantaneous / Definite Time Overcurrent Jam (locked Rotor) Instantaneous / Definite Time Overcurrent for the phase currents 50N/G Instantaneous / Definite Time Overcurrent for the ground element 50Ns Instantaneous / Definite Time Overcurrent for the ground...
Page 544 14 Appendix 14.5 List of ANSI Codes IEEE C37.2 / MRMV4 Functions ANSI Directional Overcurrent Protection Directional Overcurrent Protection for the ground element 67Ns Directional Overcurrent Protection for the ground element, sensitive measuring input Power Swing Blocking 74TC Trip Circuit Supervision Out of Step Tripping Freq.
Page 545: Revision History
SEG Support. Up to date documentation? Please check the web site of SEG for the latest revision of this Technical Manual and if there is an Errata Sheet with updated information. MRMV4-3.7-EN-MAN...
Page 546 14 Appendix 14.6.1 Version: 3.0 14.6.1 Version: 3.0 • Date: 2015-October-01 • Revision: B Hardware • A new front plate in dark gray color replaces the blue housing that had been used for all 2.x versions. • The new front plate features a USB interface for the connection with the Smart view operating software.
Page 547 14 Appendix 14.6.1 Version: 3.0 Temperature Protection Module – RTD The trip command has been made selectable. Switch Onto Fault - Module – SOTF The SOTF function has been removed. SCADA The DNP3 has been made available (with RTU/TCP/UDP). New fiber-optic interfaces for SCADA. Setting procedure (menu structure, default settings) has been modified.
Page 548 14 Appendix 14.6.1 Version: 3.0 IEC 60870‑5‑103 Bugfix: • Problem with reading disturbances fixed. SNTP Start the network after protection is active. Bugfix: • SNTP might not have worked correctly in case of an empty battery. • Default daylight-saving changed to “Sunday”. PC interface / Smart view connection As of Smart view R4.30, it is possible to exchange the single-line for devices that support this.
Page 549 14 Appendix 14.6.1 Version: 3.0 • All communication settings have to be re-defined. An automatic conversion is only partly possible. • The VirtualOutput assignment of IEC 61850 communication has been restructured. All assignment settings need to be re-defined. • The reconnection part of Q->&V< has been split off as a new module ReCon. An automatic conversion is not possible.
Page 550: Version: 3.0
14 Appendix 14.6.2 Version: 3.0.b 14.6.2 Version: 3.0.b • Date: 2016-February-20 • Revision: B Hardware No changes. Software The self-monitoring has been improved. Overcurrent – I[n] Bugfix: • An initialization issue has been fixed in the Overcurrent module. In case of MeasureMode I2 and DEFT characteristic, this issue could have caused a false pickup or trip after start-up.
Page 551: Version: 3.1
14 Appendix 14.6.3 Version: 3.1 14.6.3 Version: 3.1 NOTICE! This version has not been published! • Date: 2017-March-06 Hardware No changes. Software Reconnection – ReCon[n] The Reconnection module has been enhanced according to VDE‑AR‑N 4120. • The release condition has been made selectable via ReCon . Reconnect. Release Cond (options: V Internal Release, V Ext Release PCC, Both).
Page 552: Version: 3.4
14 Appendix 14.6.4 Version: 3.4 14.6.4 Version: 3.4 • Date: 2017-October-01 • Revision: C Hardware • A metal protecting cap has been added to the LC connectors for the Ethernet / TCP/IP via fiber optics. Since the cap improves the EMC immunity it is recommended to always fasten it carefully after plugging in the LC connectors.
Page 553 14 Appendix 14.6.4 Version: 3.4 Device Reset« that allows to remove options from the Reset dialog. (See ╚═▷ “2.4.6 Reset to Factory Defaults, Reset All Passwords”.) Overcurrent – I[n], IG[n] All ANSI and IEC inverse time characteristics have a time limit now according to IEC 60255‑151.
Page 554 14 Appendix 14.6.4 Version: 3.4 Manual Acknowledgment It is possible to acknowledge LEDs, SCADA, binary output relays and / or a pending trip command by pressing the »C« key at the panel. After assigning the required items to the »Ack via »C« key«, these are acknowledged by simply pressing the »C«...
Page 555: Version: 3.6
14 Appendix 14.6.5 Version: 3.6 14.6.5 Version: 3.6 • Date: 2019-January-31 Software The protection functions of the MRMV4 have been adapted to comply with the requirements of the VDE‑AR‑N‑4110:2018. Frequency Protection Module, Rate-of-frequency-change. Frequency measurement has been improved with respect to accuracy and stability. The hysteresis that is used for frequency protection can be modified with the new parameter »Freq.
Page 556 14 Appendix 14.6.5 Version: 3.6 It is possible to define Smart view connection passwords: There is a password »USB connection« for the connection via the USB interface, and there is another password »Remote network connection« for a connection via network. After a connection password has been set, Smart view will establish a connection only after the respective password has been entered.
Page 557 14 Appendix 14.6.5 Version: 3.6 Configurable Data Points for Modbus and IEC 60870‑5‑104 The communication protocols Modbus and IEC 60870‑5‑104 can now be adapted to the application by (re-)mapping the data-points. This helps to smoothly integrate the MRMV4 in an existing substation network. A new tool for Windows operating systems, SCADApter, is available for mapping the data-points to protocol-internal addresses.
Page 558 14 Appendix 14.6.5 Version: 3.6 A chapter about CT Requirements has been added, see ╚═▷ “3.5.3.4 CT Requirements”. MRMV4 MRMV4-3.7-EN-MAN...
Page 559: Version: 3.7
14 Appendix 14.6.6 Version: 3.7 14.6.6 Version: 3.7 • Date: 2020-May-19 (until firmware build number 47460) • Date: 2020-July-21 (as of firmware build number 48830) Scope of Delivery Due to environmental and efficiency considerations, the product DVD is no longer part of the standard delivery of HighPROTEC devices.
Page 560 14 Appendix 14.6.6 Version: 3.7 ╚═▷ “5.13 f – Frequency [81O/U, 78, 81R]”. Frequency Protection Module, Rate-of-frequency-change. Frequency protection has been improved according to the specifications in IEC 60255‑181:2019. A new setting parameter [Field Para / Frequency] »Stab. window f for df/dt« has been added to allow for adjusting the stabilization of the frequency values that are used for calculating df/dt.
Page 561 14 Appendix 14.6.6 Version: 3.7 The »Slave ID« is no longer a setting parameter, but a Direct Command, so that it is not saved as part of an *.HptPara setting file. Energy values are now available with Type 41. (This way the transmission of energy values is now compatible with the behavior of System Line devices.) Profibus Measurement values can now be configured as Big Endian values in SCADApter.
Page 562: Index
Index Index ANSI 26 ............... . 363█...
Page 563 Index 78 ............... . 322█...
Page 564 Index DEFT (earth/ground overcurrent 285█ characteristic) ..............DEFT (phase overcurrent characteristic) .
Page 565 Index I2> ................ 306█...
Page 566 Index IEEE VINV (phase overcurrent 264█ characteristic) ..............IG[x] .
Page 567 Index Cascading Logic Equations in 452█ ascending sequence ............ Cascading Logic Equations in 453█...
Page 568 Index access areas .............. 69█...
Page 569 Index reboot codes .............. 459█...
Page 570 Index switchgear .............. 424█...
Page 571 Index (14) ............... 199, 245, 248, 271, 302, 308, 314, ...
Page 572 Index (54) ............... 199, 302, 317█...
Page 573 SEG Electronics GmbH reserves the right to update any portion of this publication at any time. Information provided by SEG Electronics GmbH is believed to be correct and reliable. However, SEG Electronics GmbH assumes no responsibility unless otherwise expressly undertaken.

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