Woodward HighProTEC MRU4 Manual
  1. Manuals
  2. Brands
  3. Woodward Manuals
  4. Power distribution unit
  5. HighPROTEC MRU4
  6. Manual
Woodward HighProTEC MRU4 Manual

Woodward HighProTEC MRU4 Manual

Voltage protection
Hide thumbs Also See for HighProTEC MRU4:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Manual
Manual MRU4-3.6-EN-MAN
MRU4
Voltage Protection
Version: 3.6
Original document ‧ English
Revision: - (Build 42228)
© 2019

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the HighProTEC MRU4 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Woodward HighProTEC MRU4

Summary of Contents for Woodward HighProTEC MRU4

  • Page 1 Manual MRU4-3.6-EN-MAN MRU4 Voltage Protection Version: 3.6 Original document ‧ English Revision: - (Build 42228) © 2019...
  • Page 2 Manual (original) Woodward Kempen GmbH Krefelder Weg 47 ∙ D–47906 Kempen (Germany) Postfach 10 07 55 (P.O.Box) ∙ D–47884 Kempen (Germany) Telephone: +49 (0) 21 52 145 1 © 2019 Woodward Kempen GmbH MRU4 MRU4-3.6-EN-MAN...

  • Page 3: Table Of Contents

    Table of Contents Table of Contents ................MRU4 –...
  • Page 4 Table of Contents ................Slot X1 2.3.1 .
  • Page 5 Table of Contents 4.1.2.1 ................Blocking the Tripping Command 4.1.2.2 .
  • Page 6 Table of Contents ................Control / Switchgear-Manager .
  • Page 7 Table of Contents 10.3.4 ................Disarming the Relay Output Contacts 10.3.5 .

  • Page 8: Mru4 – Voltage Protection

    1 MRU4 – Voltage Protection MRU4 – Voltage Protection The MRU4 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 MRU4 is designed to protect electrical equipment from dangerous voltage fluctuations.

  • Page 9: Comments On The Manual

    (provided by evidence). Information Concerning Liability and Warranty Woodward does not accept any liability for damage resulting from conversions or changes carried out on the device or planning (projecting) work, parameter setting or adjustment changes done by the customer.
  • Page 10 1 MRU4 – Voltage Protection 1.1 Comments on the Manual Structure of This Manual • Safety first! Make yourself familiar with the most important safety messages used throughout this manual: ╚═▷ “Important Definitions”. Moreover, there is general information about the delivery scope (╚═▷...
  • Page 11 1 MRU4 – Voltage Protection 1.1 Comments on the Manual • In addition to the various protection functions, the MRU4 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 12: Important Definitions

    1 MRU4 – Voltage Protection 1.1 Comments on the Manual 1.1.1 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. DANGER! DANGER indicates an immediately dangerous situation that will result in death or serious injury if it is not avoided.
  • Page 13 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 Woodward have to be met. MRU4-3.6-EN-MAN...
  • Page 14 Please check the web site of Woodward for the latest revision of this Technical Manual and if there is an Errata Sheet with updated information.
  • Page 15 Woodward manual 82715, “Guide for Handling and Protection of Electronic Controls, Printed Circuit Boards, and Modules”. Woodward reserves the right to update any portion of this publication at any time. Information provided by Woodward is believed to be correct and reliable. However, no responsibility is assumed by Woodward unless otherwise expressly undertaken.

  • Page 16: Symbols And Definitions

    1 MRU4 – Voltage Protection 1.1 Comments on the Manual 1.1.2 Symbols and Definitions Connection Diagram that is Printed on the Housing There is a connection (wiring) diagram fixed onto the housing of the MRU4. 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 17: Symbols In Function Diagrams

    1 MRU4 – Voltage Protection 1.1 Comments on the Manual 1.1.2.1 Symbols in Function Diagrams Setting Values Prot . Blo TripCmd The upper box in the diagram on the left is the usual symbol of a setting value in a function diagram.
  • Page 18 1 MRU4 – Voltage Protection 1.1 Comments on the Manual If the setting value of parameter »name . VX name . VX Source Source« is set to “measured”, then output 1 is measured active and output 2 is inactive. calculated If the setting value of parameter »name .
  • Page 19 1 MRU4 – Voltage Protection 1.1 Comments on the Manual RS flip-flop with reset priority. Unchanged Edge-triggered counter. Band-pass filter (left: IH1, right: IH2). MRU4-3.6-EN-MAN MRU4...

  • Page 20: Information About The Device

    1 MRU4 – Voltage Protection 1.2 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 The product DVD that includes the manuals and related documentation as well as the parameter setting and evaluation software Smart view.
  • Page 21 1 MRU4 – Voltage Protection 1.2 Information About the Device Removal of the Battery after Life-Time of the MRU4 The battery has to be soldered out or alternatively the contacts have to be pinched off. Please see the product safety data sheet of the battery manufacturer for further information (Panasonic, battery type BR2032 –...

  • Page 22: Order Form Of The Device

    1 MRU4 – Voltage Protection 1.2 Information About the Device 1.2.1 Order Form of the Device Voltage Protection MRU4 -2 # Digital Binary Housing Display Inputs output relays LCD, 128 x 64 pixel Hardware variant 2 Standard Housing and mounting Door mounting Door mounting 19”...
  • Page 23 1 MRU4 – Voltage Protection 1.2 Information About the Device Voltage Protection MRU4 -2 # Available menu languages English (USA) / German / Spanish / Russian / Polish / Portuguese (BR) / French / Romanian NOTICE! (*) Within every communication option only one communication protocol is usable. Smart view can be used in parallel via the Ethernet interface (RJ45).

  • Page 24: Navigation – Operation

    1 MRU4 – Voltage Protection 1.2 Information About the Device 1.2.2 Navigation – Operation The following illustration applies to protective devices with “B1” housing and a small display, in particular the MRU4: 9 10 MRU4 MRU4-3.6-EN-MAN...

  • Page 25: Front Panel Parts

    1 MRU4 – Voltage Protection 1.2 Information About the Device 1.2.2.1 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 26 1 MRU4 – Voltage Protection 1.2 Information About the Device (10) »CTRL« Key Direct Access to the Control Page, see ╚═▷ “5 Single-Line Diagram”. MRU4 MRU4-3.6-EN-MAN...

  • Page 27: Softkey Symbols

    1 MRU4 – Voltage Protection 1.2 Information About the Device 1.2.2.2 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 28: Modules, Settings, Signals And Values

    1 MRU4 – Voltage Protection 1.3 Modules, Settings, Signals and Values Modules, Settings, Signals and Values The MRU4 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 29 1 MRU4 – Voltage Protection 1.3 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 30 1 MRU4 – Voltage Protection 1.3 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 31 1 MRU4 – Voltage Protection 1.3 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. MRU4-3.6-EN-MAN MRU4...

  • Page 32: Parameter Settings

    1 MRU4 – Voltage Protection 1.3 Modules, Settings, Signals and Values 1.3.1 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 ╚═▷ “Access Level Passwords” for a detailed description of access areas.
  • Page 33 1 MRU4 – Voltage Protection 1.3 Modules, Settings, Signals and Values 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 34 1 MRU4 – Voltage Protection 1.3 Modules, Settings, Signals and Values 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«...
  • Page 35 1 MRU4 – Voltage Protection 1.3 Modules, Settings, Signals and Values 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 36 1 MRU4 – Voltage Protection 1.3 Modules, Settings, Signals and Values 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 37: Adaptive Parameter Sets

    1 MRU4 – Voltage Protection 1.3 Modules, Settings, Signals and Values 1.3.2 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 38 1 MRU4 – Voltage Protection 1.3 Modules, Settings, Signals and Values 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 39 1 MRU4 – Voltage Protection 1.3 Modules, Settings, Signals and Values ◦ 2 shot INV characteristic, sensitive tripping stage • CLPU: cold load pickup ◦ Motor start, de-sensibilize current protection • SOTF: switch on to fault ◦ De-sensibilize current protection •...

  • Page 40: Status Display

    1 MRU4 – Voltage Protection 1.3 Modules, Settings, Signals and Values 1.3.3 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 41: Menu Structure

    1 MRU4 – Voltage Protection 1.3 Modules, Settings, Signals and Values 1.3.4 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 42 1 MRU4 – Voltage Protection 1.3 Modules, Settings, Signals and Values • 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.

  • Page 43: Device Planning

    The manufacturer does not accept liability for any personal or material damage as a result of incorrect planning. Contact your Woodward 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 44: Field Parameters

    1 MRU4 – Voltage Protection 1.3 Modules, Settings, Signals and Values 1.3.6 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].

  • Page 45: Device Parameters

    1 MRU4 – Voltage Protection 1.3 Modules, Settings, Signals and Values 1.3.7 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 46: Reset Counters, Values And Records

    1 MRU4 – Voltage Protection 1.3 Modules, Settings, Signals and Values 1.3.8 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 “MRU4 Reference Manual”.
  • Page 47 1 MRU4 – Voltage Protection 1.4 Security Security General CAUTION! All security settings have to be made by the user of the MRU4! It is strictly recommended that you adapt the security settings according to the local regulations and requirements at the end of the commissioning procedure.

  • Page 48: Network Security

    1 MRU4 – Voltage Protection 1.4 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 49: Passwords

    1 MRU4 – Voltage Protection 1.4 Security 1.4.2 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 ╚═▷ “Connection Passwords, Smart view Access”.) •...

  • Page 50: Connection Passwords, Smart View Access

    Therefore all connections between MRU4 and Smart view are fully encrypted, using state- of-the-art cryptographic algorithms. Woodward 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 51 1 MRU4 – Voltage Protection 1.4 Security • 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 52: Access Level Passwords

    1 MRU4 – Voltage Protection 1.4 Security 1.4.4 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 – a so-called access level (or access area) – associated with each setting parameter.
  • Page 53 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. Woodward will not take over any liability for any personal injuries or damages that are caused by deactivated password protection.

  • Page 54: Access Levels

    1 MRU4 – Voltage Protection 1.4 Security 1.4.5 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 Reset/Ack...
  • Page 55 1 MRU4 – Voltage Protection 1.4 Security 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 56 1 MRU4 – Voltage Protection 1.4 Security However, the common way during every-day-use of the MRU4 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; at the end, immediately before the change is accepted, the user is asked for the appropriate password, which then unlocks the respective access area.

  • Page 57: Reset To Factory Defaults, Reset All Passwords

    1 MRU4 – Voltage Protection 1.4 Security 1.4.6 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 • reset all passwords. This Reset dialog is available at the HMI only (i. e.
  • Page 58 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 MRU4 to factory default. If this option has been deactivated, too, then the MRU4 has to be sent to Woodward as a service request. MRU4 MRU4-3.6-EN-MAN...
  • Page 59 1 MRU4 – Voltage Protection 1.5 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 60 1 MRU4 – Voltage Protection 1.5 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 61 1 MRU4 – Voltage Protection 1.5 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 62 1 MRU4 – Voltage Protection 1.5 Acknowledgments [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 63 1 MRU4 – Voltage Protection 1.5 Acknowledgments • “Ack LEDs and relays” –  The “long keypress“ acknowledges all LEDs and all binary output relays (only the password will be asked for, see below). • “Ack Everything” –  The “long keypress“ acknowledges all latched items (only the password will be asked for, see below): ◦...

  • Page 64: Measuring Values

    1 MRU4 – Voltage Protection 1.6 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 65: Statistics

    1 MRU4 – Voltage Protection 1.7 Statistics Statistics In the menu [Operation / Statistics], the min., max. and average values of the measured and calculated measured quantities can be found. 1.7.1 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 66 1 MRU4 – Voltage Protection 1.7 Statistics • “Duration”: fixed or sliding period. The period duration is settable via »Duration Vavg«. • “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 Vavg Fc«. Reset the Voltage-Based Average Values Immediate reset via Direct Control: [Operation / Reset] »ResFc Vavg«...

  • Page 67: Smart View

    1 MRU4 – Voltage Protection 1.8 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 68: Hardware

    2 Hardware 2.1 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 69 2 Hardware 2.1 Dimension Drawings Fig. 4: 3-Side-View B1 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 70 2 Hardware 2.1 Dimension Drawings NOTICE! The installation diagram shown in this section is valid only for devices with 8 pushbuttons at the front side of the HMI. (INFO-, C-, OK-, CTRL-Pushbutton and 4 Softkeys (Pushbuttons)). Fig. 5: 3-Side-View B1 Housing (Devices with 8 Softkeys). (All dimensions in mm, except dimensions in brackets [inch].) MRU4 MRU4-3.6-EN-MAN...
  • Page 71 2 Hardware 2.1 Dimension Drawings Installation Diagram – Cutout for Door Mounting WARNING! Even when the auxiliary voltage is switched-off, unsafe voltages might remain at the device connections. NOTICE! The installation diagram shown in this section is exclusively valid for devices with 8 pushbuttons at the front side of the HMI.
  • Page 72 2 Hardware 2.1 Dimension Drawings 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]). Over-tightening the mounting nuts could cause personal injury or damage the relay. MRU4 MRU4-3.6-EN-MAN...

  • Page 73: Mru4 – Installation And Wiring

    2 Hardware 2.2 MRU4 – Installation and Wiring MRU4 – Installation and Wiring 2.2.1 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 74: Overview Of Slots – Assembly Groups

    2 Hardware 2.2 MRU4 – Installation and Wiring 2.2.2 Overview of Slots – Assembly Groups WARNING! In line with the customer’s requirement the devices are combined in a modular way (in compliance with the order code). In each of the slots an assembly-group may be integrated.

  • Page 75: Communication Protocol Codes

    2 Hardware 2.2 MRU4 – Installation and Wiring 2.2.3 Communication Protocol Codes The following table lists the “Communication Options” letters from the Order Code (see ╚═▷ “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 76 2 Hardware 2.2 MRU4 – Installation and Wiring Interface Available Communication Protocols Ethernet 100MB / RJ45 IEC 61850, Modbus TCP, DNP3.0 TCP/UDP, IEC 60870‑5‑104 ╚═▷ “Ethernet – RJ45” ╚═▷ “IEC 61850” ╚═▷ “Modbus®” ╚═▷ “DNP3” ╚═▷ “IEC 60870‑5‑104” RS485 / terminals IEC 60870‑5‑103, Modbus RTU, DNP3.0 RTU ╚═▷...
  • Page 77 2 Hardware 2.2 MRU4 – Installation and Wiring Interface Available Communication Protocols Ethernet 100 MB / RJ45 ╚═▷ “IEC 60870‑5‑104” ╚═▷ “Ethernet – RJ45” ╚═▷ “IEC 61850” MRU4-3.6-EN-MAN MRU4...

  • Page 78: Legend For Wiring Diagrams

    2 Hardware 2.2 MRU4 – Installation and Wiring 2.2.4 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 79 2 Hardware 2.2 MRU4 – Installation and Wiring • Fiber Optics — Fiber optic connection MRU4-3.6-EN-MAN MRU4...
  • Page 80 2 Hardware 2.3 Slot X1 Slot X1 • Power Supply Card with Digital Inputs slot1 slot2 slot3 X100 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 81: Di8-X Power Supply And Digital Inputs

    2 Hardware 2.3 Slot X1 2.3.1 DI8-X Power Supply and Digital Inputs WARNING! In addition to the grounding of the housing (protective earth, see ╚═▷ “Grounding”) there must be an additional ground cable connected to the power supply card (functional earth, min.
  • Page 82 2 Hardware 2.3 Slot X1 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: • a wide-range power supply unit •...
  • Page 83 2 Hardware 2.3 Slot X1 • 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 84 2 Hardware 2.3 Slot X1 • “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 85 2 Hardware 2.4 Slot X2 Slot X2 • Relay Output Card • SC (Supervision Contact) slot1 slot2 slot3 X100 X103 Fig. 11: Rear side of the device (Slots). The type of card in this slot is dependent on the ordered device type.

  • Page 86: Bo-5 X - Assembly Group With 5 Binary Output Relays + 1 System Contact

    2 Hardware 2.4 Slot X2 2.4.1 BO-5 X - Assembly Group with 5 Binary Output Relays + 1 System Contact 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 87 2 Hardware 2.4 Slot X2 BO-5 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 BO6 C BO6 NO Fig.
  • Page 88 2 Hardware 2.5 Slot X3 Slot X3 • VT – Voltage Transformer Measuring Inputs slot1 slot2 slot3 X100 X103 Fig. 14: Rear side of the device (Slots). Available assembly groups in this slot: • TU: Voltage Measuring Input Card. MRU4 MRU4-3.6-EN-MAN...

  • Page 89: Tu – Voltage Measuring Inputs

    2 Hardware 2.5 Slot X3 2.5.1 TU – Voltage Measuring Inputs WARNING! Ensure the correct tightening torques (see diagram). Connection cross section: min. 0.5 mm² (AWG 20) … max. 6.0 mm² (AWG 10) with or without wire end ferrule. 0.5 Nm 4.42 lb⋅in 1.0 Nm 8.85 lb⋅in...
  • Page 90 2 Hardware 2.5 Slot X3 VL1.1 VL1.2 VL2.1 VL2.2 VL3.1 VL3.2 VX1.1 VX1.2 Fig. 16: 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 91 2 Hardware 2.5 Slot X3 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 92: Voltage Transformers

    2 Hardware 2.5 Slot X3 2.5.2 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 93 2 Hardware 2.5 Slot X3 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 94 2 Hardware 2.5 Slot X3 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. 19: Three-phase voltage measurement - wiring of the measurement inputs: "delta-connection" WARNING! Calculation of the residual voltage VG is not possible VL1/VL12...
  • Page 95 2 Hardware 2.5 Slot X3 VL1/VL12 V̲ L 31' V̲ L 12' VL2/VL23 V̲ L 23' V̲ L 12 VL3/VL31 V̲ L 23 V̲ L 31 VX̲ ' V̲ L 1 V̲ L 2 V̲ L 3 Fig. 20: Three-phase voltage measurement - wiring of the measurement inputs: "delta- connection"Measurement of the residual voltage VG via auxilliary windings (e-n) "broken delta"...

  • Page 96: Slot X100: Ethernet Interface

    2 Hardware 2.6 Slot X100: Ethernet Interface Slot X100: Ethernet Interface slot1 slot2 slot3 X100 X103 Fig. 22: Rear side of the device (Slots). An Ethernet interface may be available depending on the ordered device type. NOTICE! The available combinations can be gathered from the ordering code.

  • Page 97: Ethernet – Rj45

    2 Hardware 2.6 Slot X100: Ethernet Interface 2.6.1 Ethernet – RJ45 MRU4-3.6-EN-MAN MRU4...

  • Page 98: Slot X101

    2 Hardware 2.7 Slot X101 Slot X101 • IRIG-B00X slot1 slot2 slot3 X100 X103 Fig. 23: Rear side of the device (Slots). Depending on the ordered device type, this slot can be equipped with an IRIG-B interface. NOTICE! The available combinations can be gathered from the ordering code.

  • Page 99: Irig-B00X

    2 Hardware 2.7 Slot X101 2.7.1 IRIG-B00X WARNING! Make sure that the tightening torque is 0.56-0.79 Nm. X101 IRIG-B+ IRIG-B- Fig. 24: IRIG-B00X – Terminal Marking. IRIG-B+ IRIG-B- Fig. 25: IRIG-B00X – Pin Assignment. MRU4-3.6-EN-MAN MRU4...

  • Page 100: Slot X103: Data Communication

    2 Hardware 2.8 Slot X103: Data Communication Slot X103: Data Communication slot1 slot2 slot3 X100 X103 Fig. 26: Rear side of the device (Slots). The data communication interface in the X103 slot is dependent on the ordered device type. The scope of functions is dependent on the type of data communication interface. Available assembly groups in this slot: •...

  • Page 101: Modbus® Rtu / Iec 60870-5-103 Via Rs485

    2 Hardware 2.8 Slot X103: Data Communication 2.8.1 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. 27: Terminals Protective Relay R1 = 560Ω R1 R2 R2 = 120Ω...
  • Page 102 2 Hardware 2.8 Slot X103: Data Communication Protective Relay R1 = 560Ω R2 = 120Ω Fig. 29: Wiring example, Device in the middle of the bus Protective Relay R1 = 560Ω R2 = 120Ω Fig. 30: Wiring example, Device at the end of the bus. (Setting wire jumpers to activate the integrated Terminal Resistor.) MRU4 MRU4-3.6-EN-MAN...
  • Page 103 2 Hardware 2.8 Slot X103: Data Communication 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 termination resistors used...
  • Page 104 2 Hardware 2.8 Slot X103: Data Communication 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 termination resistors used...

  • Page 105: Profibus Dp/ Modbus® Rtu / Iec 60870‑5‑103 Via Fiber Optic

    2 Hardware 2.8 Slot X103: Data Communication 2.8.2 Profibus DP/ Modbus® RTU / IEC 60870‑5‑103 via Fiber Optic Fig. 33: 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 106: Profibus Dp Via D‑Sub

    2 Hardware 2.8 Slot X103: Data Communication 2.8.3 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 107: Modbus® Rtu / Iec 60870‑5‑103 Via D‑Sub

    2 Hardware 2.8 Slot X103: Data Communication 2.8.4 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 108: Ethernet / Tcp/Ip Via Fiber Optics

    2 Hardware 2.8 Slot X103: Data Communication 2.8.5 Ethernet / TCP/IP via Fiber Optics RxD TxD Fig. 34: 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 109 2 Hardware 2.9 PC Interface – X120 PC Interface – X120 B1, B2 und B3 Housing USB-Interface for Parameter Setting and Evaluation Software - X120 Fig. 35: USB (Mini-B) MRU4-3.6-EN-MAN MRU4...

  • Page 110: Input, Output And Led Settings

    2 Hardware 2.10 Input, Output and LED Settings 2.10 Input, Output and LED Settings 2.10.1 LEDs The LEDs can be configured within the menu: [Device Para / LEDs] CAUTION! Attention must be paid to ensure that there are no overlapping functions due to double or multiple LED assignment of colors and flashing codes.
  • Page 111 2 Hardware 2.10 Input, Output and LED Settings The main overview shows the first assignments of the LEDs. Periodically the available softkeys will be shown. LED multiple assignment page: On the main overview page use the softkeys »up« and »down« to select an LED.« From there you can enter the »LED multiple assignment page«...

  • Page 112: Configuration Of The Digital Inputs

    2 Hardware 2.10 Input, Output and LED Settings The last option, that allows for resetting all LEDs at once in case of a protection alarm, must be activated by setting: [Device Para / LEDs / LEDs group A / LED 1...n] »Latched« = “active, ack.
  • Page 113 2 Hardware 2.10 Input, Output and LED Settings The Digital Inputs can be configured within the menu: [Device Para / Digital Inputs / name of the assembly group (e. g. “DI-8 X”) / Group X] Set the following parameters for each of the digital inputs: •...
  • Page 114 2 Hardware 2.10 Input, Output and LED Settings Assignment of Digital Inputs Option Option Input Device Para/digital input Protection Module 1 Input Protection Module 2 Option 1: Assigning a Digital Input onto one or mutliple modules. Adding an assignment: Within menu [Device Para / Digital Inputs], Digital Inputs can be assigned onto one or multiple targets.
  • Page 115 2 Hardware 2.10 Input, Output and LED Settings Call a module. Within this module assign a Digital Input onto a module input. Example: A protection module should be blocked depending on the state of a Digital Input. For this assign onto the blocking input within the Global Parameters the Digital Input (e. g.

  • Page 116: Output Relays Settings

    2 Hardware 2.10 Input, Output and LED Settings 2.10.3 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 117 2 Hardware 2.10 Input, Output and LED 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 118 2 Hardware 2.10 Input, Output and LED 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 &...

  • Page 119: Communication Protocols

    3 Communication Protocols 3.1 General SCADA (Communication) Setting Communication Protocols General SCADA (Communication) Setting The set of available SCADA protocols depends on the ordered hardware variant (see ╚═▷ “Order Form of the Device”, ╚═▷ “Communication Protocol Codes”). You have to define which one of the available SCADA protocols the MRU4 shall use. This is done by setting [Device planning] »Protocol«...

  • Page 120: Tcp/Ip Settings

    3 Communication Protocols 3.2 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 121 3 Communication Protocols 3.3 Profibus 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 122: Iec 61850

    3 Communication Protocols 3.4 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 123 3 Communication Protocols 3.4 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 124: Dnp3

    3 Communication Protocols 3.5 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 125 3 Communication Protocols 3.5 DNP3 Point Mapping Binary Inputs Double Bit Inputs Pulse Signal DNP Master Counters Analog Inputs Protective Relay Fig. 36: Point Mapping NOTICE! Please take into account that the designations of inputs and outputs are set from the Masters perspective.
  • Page 126 3 Communication Protocols 3.5 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 127: Application Example: Setting A Relay

    3 Communication Protocols 3.5 DNP3 3.5.1 Application Example: Setting a Relay Logics Assign Logic Functions onto Relay Inputs Pulse Signal ≥1 Signal Set Relay ≥1 Signal Reset Relay Pulse Signal Binary Output signals of the DNP cannot directly be used in order to switch relays because the DNP Binary Outputs are pulse signals (by DNP definition, not steady state).
  • Page 128 3 Communication Protocols 3.5 DNP3 • Then the Deadband setting value must be as follows: 10% ⋅ q = 0.0125 = 1.25% Currents (1 A CT) • The 1 A current transformers cover the range 0 – 40 A. • The rated current (secondary) is 1 A. •...
  • Page 129 3 Communication Protocols 3.5 DNP3 • 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 / 2.5 A = 0.4 • For example, a deadband value of 1%, given as a percentage of the rated current, is required.
  • Page 130 3 Communication Protocols 3.5 DNP3 • For example, a deadband value of 0.1%, given as a percentage of the rated frequency, is required. • Then the Deadband setting value must be as follows: 0.1% ⋅ q = 0.000714 = 0.0714% Frequency (60 Hz Network) • The value range is 40 – 70 Hz (i. e. the same as for 50 Hz). •...

  • Page 131: Iec60870-5-103

    3 Communication Protocols 3.6 IEC60870-5-103 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 132 3 Communication Protocols 3.6 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 133 3 Communication Protocols 3.6 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 134: Configurable Communication Protocols

    3 Communication Protocols 3.7 Configurable Communication Protocols Configurable Communication Protocols Some of the SCADA protocols supported by the MRU4 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 135: Iec 60870‑5‑104

    3 Communication Protocols 3.7 Configurable Communication Protocols 3.7.1 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 MRU4 it is expected that most users want to adapt the mapping to their own needs.
  • Page 136 3 Communication Protocols 3.7 Configurable Communication Protocols 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 137 3 Communication Protocols 3.7 Configurable Communication Protocols My_IEC104_Mapping.HptSMap File Edit Settings Help IEC104 Information Object Data type Deadband Scaling/Norm factor Exclude from Inro. Comment Description 61600 ▲ 00061600 IEC104 . Scada Cmd 1 DATATYPE_DP Scada Command ▼ 00061601 IEC104 . Scada Cmd 2 DATATYPE_DP Scada Command 00061602...
  • Page 138 3 Communication Protocols 3.7 Configurable Communication Protocols 3.7.2 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 MRU4 is sufficient for most applications, so that only a few settings have to be made (see below).
  • Page 139 3 Communication Protocols 3.7 Configurable Communication Protocols ® 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 140 3 Communication Protocols 3.7 Configurable Communication Protocols 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 141 3 Communication Protocols 3.7 Configurable Communication Protocols 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 142 3 Communication Protocols 3.7 Configurable Communication Protocols For information about how to upload the edited mapping to the MRU4, see the SCADAPTER documentation and ╚═▷ “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.) MRU4 MRU4-3.6-EN-MAN...

  • Page 143: High Tech Line 3-Compatible Modbus Datapoint Mapping

    Modbus communication of the MRU4 compatible with a High Tech Line 3 device. As a template for individual adaptations, Woodward has prepared two Modbus-*.HptSMap files (ModbusMRI3_IER.HptSMap and ModbusMRU3.HptSMap), which make the MRU4 compatible to an MRI3 or to an MRU3 (as far as possible). These mapping files can be found on the product DVD that has been part of the delivery.

  • Page 144: Data-Point Mapping Using The Scadapter

    3 Communication Protocols 3.7 Configurable Communication Protocols 3.7.4 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 145 3 Communication Protocols 3.7 Configurable Communication Protocols Device Para/IEC104/Config. Data Obj. Smart view SCADA Data Point Mapping Configuration Send SCADA 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 146: Time Synchronization

    3 Communication Protocols 3.8 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 147 3 Communication Protocols 3.8 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 148 3 Communication Protocols 3.8 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 149: Sntp

    3 Communication Protocols 3.8 Time Synchronization 3.8.1 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 150 3 Communication Protocols 3.8 Time Synchronization 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 151: Irig-B00X

    3 Communication Protocols 3.8 Time Synchronization 3.8.2 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 152 3 Communication Protocols 3.8 Time Synchronization 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”. •...

  • Page 153: Protective Elements

    4 Protective Elements 4.1 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 154 4 Protective Elements 4.1 Module Prot: General Protection Availability of the Protection Function GeneralProt_Y01 Prot – active At the moment no parameter is being changed (except parameter set parameters) & Prot . available Measured Values: OK Prot . Function & inactive Prot .

  • Page 155: General Alarms And General Trips

    4 Protective Elements 4.1 Module Prot: General Protection 4.1.1 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 156 4 Protective Elements 4.1 Module Prot: General Protection 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 157 4 Protective Elements 4.1 Module Prot: General Protection • 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 158 4 Protective Elements 4.1 Module Prot: General Protection Prot . Trip GeneralProt_Y17 name = Each trip of an active, trip authorized protection module will lead to a general trip. name . Trip ≥1 name[2] . Trip Prot . Trip name[n] . Trip Prot.Alarm GeneralProt_Y20 Each phase selective alarm of a module (I, IG, V, VX depending on the device type) will lead to a phase selective general alarm (collective alarm).
  • Page 159 4 Protective Elements 4.1 Module Prot: General Protection 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 160: Blockings

    4 Protective Elements 4.1 Module Prot: General Protection 4.1.2 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 161 4 Protective Elements 4.1 Module Prot: General Protection • 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 162: Blocking The Tripping Command

    4 Protective Elements 4.1 Module Prot: General Protection 4.1.2.1 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 163: Activate, Deactivate Or Block A Protection Function Temporarily

    4 Protective Elements 4.1 Module Prot: General Protection 4.1.2.2 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_Y03 name = all modules that are blockable Frequency is within the nominal frequency range.(*)(**) &...
  • Page 164 4 Protective Elements 4.2 Interconnection Interconnection Various state-of-the-art protective elements have been developed for the HighPROTEC. Due to the increasing role of distributed energy resources interconnection protection becomes more and more important. A new, sophisticated protection function package covers all protective elements for interconnection applications. This package can be found within menu [Interconnection].
  • Page 165 4 Protective Elements 4.3 V - Voltage Protection [27,59] 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 is it has to be ensured that by an »External Blocking«...
  • Page 166 4 Protective Elements 4.3 V - Voltage Protection [27,59] • »Alarm L2« or »Trip L2« – alarm or trip caused by phase voltage VL2. • »Alarm L3« or »Trip L3« – alarm or trip caused by phase voltage VL3. If, however, line-to-line voltages are applied to the measuring inputs and field parameter »VT con«...
  • Page 167 4 Protective Elements 4.3 V - Voltage Protection [27,59] NOTICE! The required settings for the calculation of the “average value” of the “sliding average value supervision” have to be taken within menu [Device Para / Statistics / Vavg]. Measuring Mode If the measuring inputs of the voltage measuring card is fed with “Phase to Ground”...
  • Page 168 4 Protective Elements 4.3 V - Voltage Protection [27,59] VProtection_Y03 V = V[1]...[n] Meas Circuit Superv inactive active & ≥1 Device planning Mode V> V< Measuring Mode Phase to Ground Phase to Phase & Please Refer To Diagram: “VProtection_Y02” Φ &...

  • Page 169: Commissioning: Overvoltage Protection [59]

    4 Protective Elements 4.3 V - Voltage Protection [27,59] VProtection_Y04 V = V[1]...[n] Please Refer To Diagram: “VProtection_Y03” V . Alarm L1 Please Refer To Diagram: “VProtection_Y03” V . Alarm L2 Please Refer To Diagram: “VProtection_Y03” V . Alarm L3 V .

  • Page 170: Commissioning: Undervoltage Protection [27]

    4 Protective Elements 4.3 V - Voltage Protection [27,59] • 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 171: Vg, Vx – Voltage Supervision [27A, 59A]

    4 Protective Elements 4.4 VG, VX – Voltage Supervision [27A, 59A] VG, VX – Voltage Supervision [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 172 4 Protective Elements 4.4 VG, VX – Voltage Supervision [27A, 59A] Prot – Alarm, Trip, TripCmd VeProtection_Y02 VG . Superv. only & Alarm VG . Alarm & Trip VG . Trip & VG . TripCmd [*] Please Refer To Diagram: Trip blockings Tripping command deactivated or blocked.

  • Page 173: Commissioning: Residual Voltage Protection – Measured [59N]

    4 Protective Elements 4.4 VG, VX – Voltage Supervision [27A, 59A] Options: • [Protection Para / Set 1…4 / V-Prot / VG[x]] »Measuring method« = ◦ Fundamental ◦ True RMS 4.4.1 Commissioning: Residual Voltage Protection – Measured [59N] Object to be tested Residual voltage protection stages.
  • Page 174 4 Protective Elements 4.4 VG, VX – Voltage Supervision [27A, 59A] NOTICE! Calculation of the residual voltage is only possible if phase voltages (star) were applied to the voltage measuring inputs and if »VX Source=calculated« is set within the corresponding parameter set. Procedure •...

  • Page 175: F – Frequency [81O/U, 78, 81R]

    4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] 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 176 4 Protective Elements 4.5 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 177: Operating Modes "F<", "F

    4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] 4.5.1 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 178 4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] 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 .

  • Page 179: Operating Mode "Df/Dt

    4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] 4.5.2 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 180 4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] This protection element provides a tripping threshold and a tripping delay. If the frequency gradient df/dt exceeds or falls below the set tripping threshold, an alarm will be issued instantaneously. If the frequency gradient remains still above/below the set tripping threshold until the tripping delay has elapsed, a tripping command will be issued.

  • Page 181: Operating Modes "F< And Df/Dt", "F> And Df/Dt

    4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] 4.5.3 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 182 4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] 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 . Alarm f Mode VT .

  • Page 183: Operating Modes "F< And Df/Dt", "F> And Df/Dt

    4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] 4.5.4 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. In the selected frequency parameter set f[X], an underfrequency pickup threshold f<, a threshold for the absolute frequency difference (frequency decrease) DF and supervision interval DT can be set.
  • Page 184 4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] 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 . Alarm f Mode VT .
  • Page 185 4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] Trip Reset temporarily blocking f< MRU4-3.6-EN-MAN MRU4...

  • Page 186: Operating Mode "Delta Phi" – [Ansi 78V]

    4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] 4.5.5 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 187 4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] Measuring Principle of Vector Surge Supervision ΔV̲ = I̲ 1  ⋅ j Xd I̲ 2 I̲ 1 V̲ P ∿ V̲ 1 Grid Z̲ Fig. 45: Equivalent circuit at synchronous generator in parallel with the mains. V̲...
  • Page 188 4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] ΔV̲ ′ = I̲ ′ 1 ⋅ j Xd I̲ ′ 1 V̲ P ∿ V̲ ′ 1 Grid Z̲ Fig. 47: Equivalent circuit at mains failure. In case of mains failure or auto reclosing the generator suddenly feeds a very high consumer load.
  • Page 189 4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] Voltage Vector Surge V(t) V(t)′ V(t) Trip Δt ~ delta phi Fig. 49: 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 190 4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] 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 two phases...

  • Page 191: Commissioning: Overfrequency [F>]

    4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] 4.5.6 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 •...

  • Page 192: Commissioning: F< And -Df/Dt – Underfrequency And Rocof

    4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] 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: • Keep on increasing the rate of change of frequency until the respective element is activated.

  • Page 193: Commissioning: F> And Df/Dt – Overfrequency And Rocof

    4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] 4.5.10 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 194: Commissioning: F> And Df/Dt – Overfrequency And Df/Dt

    4 Protective Elements 4.5 f – Frequency [81O/U, 78, 81R] 4.5.12 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 195: V 012 – Voltage Asymmetry [47]

    4 Protective Elements 4.6 V 012 – Voltage Asymmetry [47] V 012 – Voltage Asymmetry [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 196: Commissioning: Asymmetry Protection

    4 Protective Elements 4.6 V 012 – Voltage Asymmetry [47] 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 .
  • Page 197 4 Protective Elements 4.6 V 012 – Voltage Asymmetry [47] • 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 198: Sync - Synchrocheck [25]

    4 Protective Elements 4.7 Sync - Synchrocheck [25] Sync - Synchrocheck [25] WARNING! The synchrocheck function can be bypassed by external sources. In this case, synchronization has to be secured by other synchronizing systems before breaker closing! NOTICE! The first three measuring inputs of the voltage measuring card (VL1/VL1-L2, VL2/VL2-L3, VL3/VL3-L1) are named /labeld as bus voltages within the snyc-check element (this applies also to generator protection devices).
  • Page 199 4 Protective Elements 4.7 Sync - Synchrocheck [25] Line VL1 Bus VL1 Bus f Line f Bus VL3 Line VL2 Line VL3 Bus VL2 If the generator frequency fBus is not equal to the mains frequency fLine, it results in a slip frequency ΔF = |fBus ‑fLine| between the two system frequencies.
  • Page 200 4 Protective Elements 4.7 Sync - Synchrocheck [25] Angular or Phase Difference Even if the frequency of both systems is exactly identical, usually an angular difference of the voltage phasors is the case. Line VL1 Bus VL1 Angle Diff Bus f = Line f Bus VL3 Line VL2 Line VL3...
  • Page 201 4 Protective Elements 4.7 Sync - Synchrocheck [25] WARNING! When paralleling two systems, it has to be verified that the system-to-system mode is selected. Paralleling two systems in generator-to-system mode can cause severe damage! Working Principle Synchrocheck (Generator-to-System) Sync SynchronCheck_Y01 SyncMode = Generator2System Instanz_Feldparameter_k VT .
  • Page 202 4 Protective Elements 4.7 Sync - Synchrocheck [25] Working Principle Synchrocheck (System-to-System) Sync SynchronCheck_Y02 SyncMode = System2System Please Refer To Diagram: Blockings (Stage is not deactivated and no active blocking signals) & Sync . Ready to Close Ext. Blocked ≥1 Sync .
  • Page 203 4 Protective Elements 4.7 Sync - Synchrocheck [25] fourth voltage input. If all synchronous conditions are fulfilled (i. e.: ΔV [VoltageDiff], ΔF [SlipFrequency], and Δφ [AngleDiff]) are within the limits, a signal will be issued that both systems are synchronous. Synchrocheck Override Conditions If enabled the following conditions can override the synchrocheck function: •...

  • Page 204: Reconnection Module

    4 Protective Elements 4.8 Reconnection Module Reconnection Module The reconnection function after a mains decoupling is based on the following German regulations: • Technische Anschlussregeln für die Hochspannung (VDE-AR-N 4120) • Technische Richtlinie „Erzeugungsanlagen am Mittelspannungsnetz“, Richtlinie für Anschluss und Parallelbetrieb von Erzeugungsanlagen am Mittelspannungsnetz, Ausgabe Juni 2008, BDEW Bundesverband der Energie- und Wasserwirtschaft e.V., siehe Kap.
  • Page 205 4 Protective Elements 4.8 Reconnection Module Release Logic for the Generator Circuit Breaker ReCon WZ_Y01 ReCon = ReCon[1]...[n] Voltage Release ReCon . VLL< Release & ReCon . Measuring method Fundamental True RMS & ReCon . VLL> Release Vavg ≥1 Φ &...
  • Page 206 4 Protective Elements 4.8 Reconnection Module NOTICE! If a power generating unit should be reconnected by the generator circuit breaker the voltage transformers have to be installed at the mains side of the circuit breaker. After the decoupling functions have tripped so that the generator circuit breaker has been opened, some conditions must be fulfilled by the network operator before the reconnection of the power generating unit may be performed.
  • Page 207 4 Protective Elements 4.8 Reconnection Module If reconnection release based on the remote control signal from the PCC is required: The parameter [Protection Para / Set x / Intercon-Prot / ReCon[n] / General Settings] »V Ext Release PCC Fc« has to be set to “active”. With this setting the voltage release signal from the PCC is used (e. g.
  • Page 208 4 Protective Elements 4.8 Reconnection Module Set the parameter [Protection Para / Set x / Intercon-Prot / ReCon[n] / Release Para] »t- Release Blo« to a sufficiently long recovery time. Reconnection is only possible after this timer has elapsed. This timer is started by the triggers in [Protection Para / Global Prot Para x / Intercon-Prot / ReCon[n] / Decoupling] mentioned above.

  • Page 209: Lvrt – Low Voltage Ride Through [27(T)]

    4 Protective Elements 4.9 LVRT – Low Voltage Ride Through [27(t)] LVRT – Low Voltage Ride Through [27(t)] The rapid development of distributed resources (DR) based on the renewable energy such as wind, solar and others has been changing the electric power system and concepts for its control, protection, metering and communication rapidly, too.
  • Page 210 4 Protective Elements 4.9 LVRT – Low Voltage Ride Through [27(t)] -0.5 Short Circuit Duration [s] Fig. 55: LVRT Standards; source: eBWK Bd. 60 (2008) Nr. 4. Authors: Dipl.-Ing. Thomas Smolka, Dr.- Ing. Karl-Heinz Weck, Zertifizierungstelle der FGH e.V., Mannheim, sowie Dipl.-Ing. (FH) Matthias Bartsch, Enercon GmbH, Aurich.
  • Page 211 4 Protective Elements 4.9 LVRT – Low Voltage Ride Through [27(t)] Auto Reclosure controlled LVRT As already mentioned, the purpose of LVRT is to keep the DR connected to the grid in case of a non-permanent voltage dip/sag. For faults within the electrical power system by which auto-reclosing function is used to coordinate with the short circuit protections like overcurrent or distance protections, it is to expect that more than one voltage dips are coming one after another in a time period which is determined by the preset auto-...
  • Page 212 4 Protective Elements 4.9 LVRT – Low Voltage Ride Through [27(t)] Ride Through Region Vrecover> Vstart< Trip Region t = 0 0.500 1.000 1.500 2.000 2.500 3.000 t [s] V[x](t[x]) = Curve Setting Points Fig. 57: “Ride-Through” region and “Trip” region. The »LVRT«...
  • Page 213 4 Protective Elements 4.9 LVRT – Low Voltage Ride Through [27(t)] LVRT LVRT_Y01 LVRT = LVRT[1]...[n] Please Refer To Diagram: Blockings (Stage is not deactivated and no active blocking signals) ≥1 LVRT . Alarm Mode & any one any two LVRT .
  • Page 214 4 Protective Elements 4.9 LVRT – Low Voltage Ride Through [27(t)] • Please note, that »Vrecover>« should be greater than »Vstart<«. If this is not the case, the internal plausibility supervision will set »Vrecover>« to 103% of »Vstart<«. • [Protection Para / Set 1…4 / Intercon-Prot / LVRT[x] / LVRT Profile] »V(tk)«, »tk« are the set points for setting the LVRT-profile.

  • Page 215: Intertripping (Remote)

    4 Protective Elements 4.10 Intertripping (Remote) 4.10 Intertripping (Remote) This module enables intertripping (executing external trip commands) Application Example Several Distributed Energy Resources are feeding mains parallel into the grid via one point of common coupling (PCC). A mains protection relay is mounted at the point of common coupling. This might be a distance protection relay that protects the outgoing transmission line.

  • Page 216: Commissioning: Intertripping

    4 Protective Elements 4.10 Intertripping (Remote) Intertripping ExtTrip_Y02 Please Refer To Diagram: Blockings (Stage is not deactivated and no active blocking signals) Intertripping . Trip-I Intertripping . Alarm-I & Intertripping . ≥1 Intertripping . Alarm Alarm & no assignment 1..n, Assignment List Intertripping .

  • Page 217: Exp - External Protection

    4 Protective Elements 4.11 ExP - External Protection 4.11 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 218 4 Protective Elements 4.11 ExP - 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 MRU4.

  • Page 219: Supervision

    4 Protective Elements 4.12 Supervision 4.12 Supervision 4.12.1 CBF – Circuit Breaker Failure [50BF*/62BF] * = only available in protective relays that offer current measurement. 4.12.1.1 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 220 4 Protective Elements 4.12 Supervision position of the breaker or a combination of both. The »CBF« module remains in the state rejected until the trigger signal drops (falls back). States The »CBF« module switches into the rejected state if the circuit breaker failure triggers are still active while the open position of the breaker has been detected successfully.

  • Page 221: Commissioning Example: Supervision Scheme 50Bf

    4 Protective Elements 4.12 Supervision 4.12.1.2 Functionality Breaker Failure Protection for devices that offer voltage measurement only CBF_Y02 * 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) Trigger*...
  • Page 222 4 Protective Elements 4.12 Supervision 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 223: Tcs - Trip Circuit Supervision [74Tc]

    4 Protective Elements 4.12 Supervision 4.12.2 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 224: Commissioning: Trip Circuit Supervision [74Tc]

    4 Protective Elements 4.12 Supervision Device digital input Trip CB & t-TCS ≥1 TCS . Alarm digital input & CB . Mode Closed Either trip coil L− Fig. 60: Connection example: Trip circuit supervision with two CB auxiliary contacts »Aux ON« (52a) and »Aux OFF«...
  • Page 225 4 Protective Elements 4.12 Supervision 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. Procedure, part 2 Simulate a broken cable in the CB control circuit.

  • Page 226: Vts – Voltage Transformer Supervision [60Fl]

    4 Protective Elements 4.12 Supervision 4.12.3 VTS – Voltage Transformer Supervision [60FL] Supervision of the VTs by comparing the measured and calculated residual voltage The module »VTS« can detect a VT failure if the calculated residual voltage does not match the measured one. As a precondition, however the phase voltages (not the line-to- line voltage) are connected to the device and so the residual voltage can be calculated.

  • Page 227: Commissioning: Voltage Transformer Failure [60Fl]

    4 Protective Elements 4.12 Supervision • Fuse failure signals that are assigned to LEDs, have to be indicated by the corresponding LED. 4.12.3.2 Commissioning: Voltage Transformer Failure [60FL] NOTICE! Precondition: • The residual voltage is measured via the residual voltage measuring input. •...

  • Page 228: Phase Sequence Supervision

    4 Protective Elements 4.12 Supervision 4.12.4 Phase Sequence Supervision The MRU4 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 229: Control / Switchgear-Manager

    5 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 230: Switchgear Control

    5 Control / Switchgear-Manager 5.1 Switchgear Control Switchgear Control Representation of a Switchgear in the Page Editor Fig. 62: Control Page Example, with the “Circuit Breaker” being highlighted. Although a switchgear always appears using a fixed representation in the Page Editor, with an exclamation mark “!”...
  • Page 231 5 Control / Switchgear-Manager 5.1 Switchgear Control Local 0.000 A 0.000 A 0.000 A CLOSE Fig. 65: 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 232 5 Control / Switchgear-Manager 5.1 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 233: Settings Within The Protection Device

    5 Control / Switchgear-Manager 5.1 Switchgear Control 5.1.1 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 234 5 Control / Switchgear-Manager 5.1 Switchgear Control Interlockings Only available if the switchgear has been set “Controlled” in the Page Editor (see ╚═▷ “5.1 “Controlled” Switchgear”). Settings in the device menu [Control / SG / SG[x] / Interlockings]: • »Interl ON1« … »Interl ON3« — Interlocking of the ON command (i. e. close commands are rejected if the assigned signal is true).
  • Page 235 5 Control / Switchgear-Manager 5.1 Switchgear Control 5.1.2 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 236: Invisible Switch

    5 Control / Switchgear-Manager 5.1 Switchgear Control 5.1.3 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 237: Circuit Breaker

    5 Control / Switchgear-Manager 5.1 Switchgear Control 5.1.4 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 238 5 Control / Switchgear-Manager 5.1 Switchgear Control 5.1.5 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 239: Disconnector (Isolator)

    5 Control / Switchgear-Manager 5.1 Switchgear Control 5.1.6 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 240: Disconnector-Earthing Combination

    5 Control / Switchgear-Manager 5.1 Switchgear Control 5.1.7 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 241: Earthing Switch

    5 Control / Switchgear-Manager 5.1 Switchgear Control 5.1.8 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 242: Fuse-Load Switch

    5 Control / Switchgear-Manager 5.1 Switchgear Control 5.1.9 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 243: Fuse-Load Switch – Disconnector

    5 Control / Switchgear-Manager 5.1 Switchgear Control 5.1.10 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 244: Fused-Disconnector (Isolator)

    5 Control / Switchgear-Manager 5.1 Switchgear Control 5.1.11 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 245: Load Switch

    5 Control / Switchgear-Manager 5.1 Switchgear Control 5.1.12 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 246: Load Switch – Disconnector

    5 Control / Switchgear-Manager 5.1 Switchgear Control 5.1.13 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 247: Three Position Switch

    5 Control / Switchgear-Manager 5.1 Switchgear Control 5.1.14 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 / …] […...
  • Page 248 5 Control / Switchgear-Manager 5.1 Switchgear Control Earthing Switch, e. g. »SG[2]«: [Control / SG / SG[2] / Pos Indicatrs Wirng] »Aux GROUND« »Aux OFF« »Ready« »Removed« ✔ ✔ — — MRU4 MRU4-3.6-EN-MAN...

  • Page 249: Withdrawable Circuit Breaker

    5 Control / Switchgear-Manager 5.1 Switchgear Control 5.1.15 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) = 3 (Pos...
  • Page 250 5 Control / Switchgear-Manager 5.1 Switchgear Control Movable Truck, e. g. »SG[2]«: [Control / SG / SG[2] / Pos Indicatrs Wirng] »Aux ON« »Aux OFF« »Ready« »Removed« ✔ ✔ — — MRU4 MRU4-3.6-EN-MAN...

  • Page 251: Withdrawable Fuse Load Switch

    5 Control / Switchgear-Manager 5.1 Switchgear Control 5.1.16 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 252: Switchgear Configuration

    5 Control / Switchgear-Manager 5.2 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 253 5 Control / Switchgear-Manager 5.2 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 254 5 Control / Switchgear-Manager 5.2 Switchgear Configuration States of the Digital Validated Breaker Positions Inputs Aux ON-I Aux OFF-I Pos ON Pos OFF Pos Disturb Pos Indeterm (while a (while a Moving Moving Indeterm timer is timer is running) running) (while a (while a Moving...
  • Page 255 5 Control / Switchgear-Manager 5.2 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 256 5 Control / Switchgear-Manager 5.2 Switchgear Configuration States of the Digital Validated Breaker Positions Inputs Aux ON-I Aux OFF-I Pos ON Pos OFF Pos Disturb Pos Indeterm OFF« is OFF« is running) running) Not wired Pos OFF Not wired Pos ON If there is no digital input assigned to the »Aux OPEN«...
  • Page 257 5 Control / Switchgear-Manager 5.2 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 258 5 Control / Switchgear-Manager 5.2 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 259 5 Control / Switchgear-Manager 5.2 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 section „Latching“ below, ╚═▷...
  • Page 260 5 Control / Switchgear-Manager 5.2 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 261 5 Control / Switchgear-Manager 5.2 Switchgear Configuration Signal Breaker CLOSE Breaker OPEN Command Signal Breaker OPEN Breaker CLOSE Command Signal Breaker Ready Trip Command Trigger [x] CLOSE Request Position Indication: Trigger [x] OPEN, CLOSE, Indeterminated, Synchronism Disturbed SCADA Autoreclosure CLOSE Ready to CLOSE Breaker CLOSE Initiative Switching Authority...
  • Page 262 5 Control / Switchgear-Manager 5.2 Switchgear Configuration • “Local and Remote”: Switching operations via push buttons, SCADA, digital inputs, or internal signals. Non-Interlocked Switching For test purposes, during commissioning and temporarily operations, interlockings can be disabled. WARNING! Non-interlocked switching can lead to serious injuries or death! For non-interlocked switching the setting [Control / General Settings] »Res NonIL«...

  • Page 263: Switchgear Wear

    5 Control / Switchgear-Manager 5.3 Switchgear Wear Anti-Pumping By pressing the CLOSE command Softkey only a single switching CLOSE impulse is sent, regardless how long the Softkey is pressed. The switchgear executes the close command only once. Switchgear Wear Switchgear Wear Features The MRU4 maintains various statistical values related to each switchgear.
  • Page 264 5 Control / Switchgear-Manager 5.3 Switchgear Wear • The amplitudes of the interrupting currents. • The frequency that the switchgear operates (Operations per hour). The user has to maintain the switchgear accordingly to the maintenance schedule that is to be provided by the manufacturer (switchgear operation statistics). By means of up to ten points that the user can replicate the switchgear wear curve within menu [Control / SG / SG[x] / SG Wear].

  • Page 265: Control - Example: Switching Of A Circuit Breaker

    5 Control / Switchgear-Manager 5.4 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 266 5 Control / Switchgear-Manager 5.4 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 267: System Alarms

    6 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 268 7 Recorders Recorders The MRU4 features several Recorders that collect log messages of particular types (in some non-volatile memory): • The Self-Supervision Messages (╚═▷ “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 269: Disturbance Recorder

    7 Recorders 7.1 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 270 7 Recorders 7.1 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 271 7 Recorders 7.1 Disturbance Recorder ≥1 Start: 1Trigger Start: 2Trigger Start: 3Trigger Start: 4Trigger ≥1 Recording Start: 5Trigger Start: 6Trigger Start: 7Trigger Start: 8Trigger Man Trigger MRU4-3.6-EN-MAN MRU4...
  • Page 272 7 Recorders 7.1 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 273 7 Recorders 7.1 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 274: Fault Recorder

    7 Recorders 7.2 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 275 7 Recorders 7.2 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. 71: Fault Recorder: times and durations. Behaviour of the Fault Recorder Who triggers the Fault Recorder? The Fault Recorder will be triggered by the rising edge of the »Prot .
  • Page 276 7 Recorders 7.2 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 277 7 Recorders 7.2 Fault Recorder Part 1: Common Information (independent of protection function) FaultNo This counter will be incremented with each fault (»Prot . Alarm«) No. of Grid Fault This counter will also be incremented with each »Prot . Alarm« with exception of the AR (this applies only to devices that offer auto reclosing).
  • Page 278 7 Recorders 7.2 Fault Recorder • Option 1: A Fault has popped up on the HMI (because a trip or pickup has occurred). • Option 2: Call up the Fault recorder menu manually. Option 1 (in case a fault record pops up on the display (overlay): •...

  • Page 279: Event Recorder

    7 Recorders 7.3 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 280: Trend Recorder

    7 Recorders 7.4 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 281: Programmable Logic

    8 Programmable Logic Programmable Logic General Description The Protective Relay 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 282 8 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 283 8 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 284 8 Programmable Logic LogicMain_E05 Update within the same evaluation cycle LE1 . Input1 LE1 . Input2 Output of Logic Equation 1 LE1 . Input3 Logic Equation1 LE1 . Input4 LE2 . Input2 Output of Logic Equation 2 LE2 . Input3 Logic Equation2 LE2 .
  • Page 285 8 Programmable Logic LogicMain_E07 Update within the same evaluation cycle LE3 . Input1 Update within the next evaluation cycle (1 cycle delay) LE3 . Input2 Output of Logic Equation 3 LE3 . Input3 Logic Equation3 Update within the next but one evaluation cycle (2 cycles delay) LE3 .
  • Page 286 9 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 287 9 Self-Supervision Self-Supervision within the devices Supervision of... Supervised by... Action on detected issue... Quality of the power supply A hardware circuit ensures that If the supply voltage is too low, the device can only be used, if the device will not start up or it the power supply is in the range will be set out of service specified by the technical data.
  • Page 288 9 Self-Supervision Self-Supervision within the devices Supervision of... Supervised by... Action on detected issue... refer to chapter ╚═▷ “IEC 61850”. MRU4 MRU4-3.6-EN-MAN...

  • Page 289: Device Start (Reboot)

    9 Self-Supervision 9.1 Device Start (Reboot) 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 290 9 Self-Supervision 9.1 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 291: Self-Supervision Messages

    9 Self-Supervision 9.2 Self-Supervision Messages 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 MRU4. The Self-Supervision collects various security-related messages (e. g.

  • Page 292: Syslog

    9 Self-Supervision 9.3 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 293 9 Self-Supervision 9.3 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. MRU4-3.6-EN-MAN MRU4...

  • Page 294: Device Taken Out Of Service ("Device Stopped")

    There may exist additional error information accessible by the Service Staff. These offer further failure analysis and diagnosis opportunities to the Service Staff. NOTICE! In such a case please contact the Woodward Service Staff and provide them the error code. For further information on trouble shooting please refer to the separately provided Troubleshooting Guide.
  • Page 295 10 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 296: Commissioning/Protection Test

    10 Commissioning 10.1 Commissioning/Protection Test NOTICE! The permissible deviations of measuring values and device adjustment are dependent on the technical data/tolerances. 10.1 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 297: Putting Out Of Operation – Plug Out The Relay

    10 Commissioning 10.2 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. 10.2 Putting out of Operation – Plug out the Relay WARNING! Warning! Dismounting the relay will lead to a loss of the protection functionality.

  • Page 298: Service And Commissioning Support

    10 Commissioning 10.3 Service and Commissioning Support 10.3 Service and Commissioning Support Within the service menu various functions support maintenance and commissioning of the device. 10.3.1 General Within the menu [Service / General], the user can initiate a reboot of the device. The »System OK«...

  • Page 299: Disarming The Relay Output Contacts

    10 Commissioning 10.3 Service and Commissioning Support • 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 300 10 Commissioning 10.3 Service and Commissioning Support 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 301: Fault Simulator (Sequencer)

    10 Commissioning 10.3 Service and Commissioning Support 10.3.5 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 302 10 Commissioning 10.3 Service and Commissioning Support Within the menu branch [Service / Test (Prot inhibit) / Sgen / Configuration / Times], the duration of each phase 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 303 10 Commissioning 10.3 Service and Commissioning Support 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 304: Servicing And Maintenance

    MRU4. Battery In general the battery lasts more than 10 years. Exchange by Woodward. 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 305 11 Servicing and Maintenance We recommend to execute a protection test after each 4 years period. This period can be extended to 6 years if a function test is executed at least every 3 years. MRU4-3.6-EN-MAN MRU4...

  • Page 306: Technical Data

    12 Technical Data Technical Data NOTICE! Use copper conductors only, 75°C. Conductor size AWG 14 [2.5 mm²]. 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. Average: <75% rel.
  • Page 307 12 Technical Data Material, Housing: Aluminum extruded section Material, Front Panel: Aluminum / foil front Mounting Position: Horizontal (±45° around the X-axis must be permitted) Weight: approx. 2.4 kg (5.291 lb) Voltage and Residual Voltage Measurement (“TU”) 0.5 Nm 4.42 lb⋅in 1.0 Nm 8.85 lb⋅in Fig.
  • Page 308 12 Technical Data Frequency Measurement Nominal frequencies: 50 Hz / 60 Hz Voltage Supply Aux. Voltage: 24 … 270 VDC / 48 … 230 VAC (−20/+10%) ≂ Buffer Time in Case of Supply Failure: ≥ 50 ms at minimal aux. voltage The device will shut down if the buffer time is expired.
  • Page 309 12 Technical Data Front Interface USB Type: Mini B Real Time Clock Running Reserve of the Real Time Clock: 1 year min. Digital Inputs Max. Input Voltage: 300 VDC / 259 VAC Input Current: DC <4 mA AC <16 mA Reaction Time: <20 ms Fallback Time:...
  • Page 310 12 Technical Data Switching Threshold 2 OFF: Un = 110 / 120 VAC / DC Switching Threshold 3 ON: Min. 88.0 VDC / 88.0 VAC Switching Threshold 3 OFF: Max. 44.0 VDC / 44.0 VAC Un = 230 / 240 VAC / DC Switching Threshold 4 ON: Min.
  • Page 311 12 Technical Data Supervision Contact (SC) Continuous current: 5 A AC/DC Max. Switch-on current: 15 A AC/DC for 4 s Max. breaking current: 5 A AC up to 250 VAC 5 A DC up to 30 V (resistive) 0.25 A DC at 250 V (resistive) Max.
  • Page 312 12 Technical Data −16.0 dBm with 62,5/125 µm fiber −12.5 dBm with 100/145 µm fiber −8.5 dBm with 200 µm HCS fiber Maximum Link Length: approx. 2.7 km (depending on link attenuation) Please note: The transmission speed of the optical interfaces is limited to 3 MBaud for Profibus.
  • Page 313 12 Technical Data Boot Phase After switching on the power supply the protection will be available in approximately 6 seconds. After approximately 27 seconds (depending on the configuration) the boot phase is completed (HMI and Communication initialized). MRU4-3.6-EN-MAN MRU4...

  • Page 314: Specifications / Tolerances

    12 Technical Data 12.1 Specifications / Tolerances 12.1 Specifications / Tolerances 12.1.1 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 315: Specifications Of The Measured Value Acquisition

    12 Technical Data 12.1 Specifications / Tolerances 12.1.2 Specifications of the Measured Value Acquisition Phase-to-ground and Residual Voltage Measurement Frequency Range: 50 Hz / 60 Hz ± 10% Accuracy for measured values: Class 0.5 Amplitude Error for V < Vn: ±0.5% of the rated voltage or ±0.5 V Amplitude Error for V >...

  • Page 316: Protection Elements Accuracy

    12 Technical Data 12.1 Specifications / Tolerances 12.1.3 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 317: Voltage-Related Protection

    12 Technical Data 12.1 Specifications / Tolerances 12.1.3.1 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 318 12 Technical Data 12.1 Specifications / Tolerances Low Voltage Ride Through Protection: Accuracy LVRT Voltage Pickup (Start) ±1.5% of the setting value or 1% Vn Voltage Dropout Ratio (Recover) Adjustable, at least 0.5% Vn Tripping time delay ±1% from settings or ±10 ms Operating Time <35 ms Starting from V lower than 0.9 x pickup...

  • Page 319: Frequency Protection

    12 Technical Data 12.1 Specifications / Tolerances 12.1.3.2 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 320 12 Technical Data 12.1 Specifications / Tolerances Rate of Change of Frequency: Accuracy df/dt df/dt *2) *3) ±2.5% or ±0.025 Hz/s Dropout 0.070 Hz/s Operating Time <300 ms, typically ~200 ms <200 ms, using minimum setting values: »Window df/dt« = 2 »Stab.

  • Page 321: Miscellaneous Protection And Supervision

    12 Technical Data 12.1 Specifications / Tolerances 12.1.3.3 Miscellaneous Protection and Supervision Sync-Check: Accuracy Sync Voltage measurement ±1.5% of the setting value or 1% Vn Slip Frequency measurement ±20 mHz at fN Angle measurement ±2° Angle Compensation measurement ±4° t (all timers) ±1% or ±10 ms Reconnection Tolerance...
  • Page 322 12 Technical Data 12.1 Specifications / Tolerances Loss of Potential: Accuracy t-Alarm ±1% or ±10 ms MRU4 MRU4-3.6-EN-MAN...

  • Page 323: Approvals

    13 Appendix 13.1 Standards Appendix 13.1 Standards 13.1.1 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 Type tested (and certified) regarding IEC 60255‑1 and regarding IEC 61850 KESCO 동일성...

  • Page 324: Design Standards

    13 Appendix 13.1 Standards 13.1.2 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 MRU4 MRU4-3.6-EN-MAN...

  • Page 325: Electrical Tests

    13 Appendix 13.1 Standards 13.1.3 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 326 13 Appendix 13.1 Standards 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 327 13 Appendix 13.1 Standards 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 MRU4-3.6-EN-MAN MRU4...

  • Page 328: Environmental Tests

    13 Appendix 13.1 Standards 13.1.4 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 min.
  • Page 329 13 Appendix 13.1 Standards 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 MRU4-3.6-EN-MAN MRU4...

  • Page 330: Mechanical Tests

    13 Appendix 13.1 Standards 13.1.5 Mechanical Tests Test Fc: Vibration Response Test IEC 60068-2-6 (10 Hz – 59 Hz) 0.035 §[y.textvar/@name=milli_k] (0.0014 §[y.textvar/@name=m_k] IEC 60255-27 Displacement §[y.textvar/@name=inch_k] IEC 60255-21-1 (59 Hz – 150 Hz) 0.5 gn class 1 Acceleration Number of cycles in each axis Test Fc: Vibration Endurance Test IEC 60068-2-6 (10 Hz –...
  • Page 331 13 Appendix 13.1 Standards Test Fe: Earthquake Test class 2 9 – 35 Hz horizontal: 2 gn, 9 – 35 Hz vertical : 1 gn, 1 sweep per axis MRU4-3.6-EN-MAN MRU4...

  • Page 332: Iec 60870‑104 Interoperability

    13 Appendix 13.2 IEC 60870‑104 Interoperability 13.2 IEC 60870‑104 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 333: Physical Layer

    13 Appendix 13.2 IEC 60870‑104 Interoperability 13.2.3 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 ■...

  • Page 334: Application Layer

    13 Appendix 13.2 IEC 60870‑104 Interoperability 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 335 13 Appendix 13.2 IEC 60870‑104 Interoperability 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 336 13 Appendix 13.2 IEC 60870‑104 Interoperability <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 337 13 Appendix 13.2 IEC 60870‑104 Interoperability <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 338 13 Appendix 13.2 IEC 60870‑104 Interoperability 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 Identification Cause of Transmission 10 11 12 13 20 44 45 46 47 …...
  • Page 339 13 Appendix 13.2 IEC 60870‑104 Interoperability Type Identification Cause of Transmission 10 11 12 13 20 44 45 46 47 … … <34> M_ME_TD_1 ▤ ▤ [X] ▤ ☐ ▤ ▤ ▤ ▤ ▤ ▤ ▤ ▤ ▤ ▤ ▤ ▤...

  • Page 340: Basic Application Functions

    13 Appendix 13.2 IEC 60870‑104 Interoperability Type Identification Cause of Transmission 10 11 12 13 20 44 45 46 47 … … <110>P_ME_NA_1 ▤ ▤ ▤ ▤ ▤ ☐ ☐ ▤ ▤ ▤ ▤ ▤ ▤ ☐ ▤ ☐ ☐ ☐...
  • Page 341 13 Appendix 13.2 IEC 60870‑104 Interoperability 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 342 13 Appendix 13.2 IEC 60870‑104 Interoperability ☐ 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) ☐ Long-pulse duration (duration determined by a system parameter in the outstation) ☐...
  • Page 343 13 Appendix 13.2 IEC 60870‑104 Interoperability 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). ☐ Act/deact of persistent cyclic or periodic transmission of the addressed object Test procedure (station-specific parameter, mark “X”...
  • Page 344 13 Appendix 13.2 IEC 60870‑104 Interoperability Parameter Default Remarks Selected value value 20 s Time-out for sending test frames in case of a long idle 20 s (fixed) state Maximum number of outstanding I format APDUs k and latest acknowledge APDUs (w) Parameter Default...

  • Page 345: Abbreviations, And Acronyms

    13 Appendix 13.3 Abbreviations, and Acronyms 13.3 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 346 13 Appendix 13.3 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 347 13 Appendix 13.3 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 348 13 Appendix 13.3 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 349 13 Appendix 13.3 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 350 13 Appendix 13.3 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 351 13 Appendix 13.3 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 352: List Of Ansi Codes

    13 Appendix 13.4 List of ANSI Codes 13.4 List of ANSI Codes (This list is essentially based on IEEE Std C37.2‑2008.) ANSI MRU4 Functions Underspeed Distance Protection Phase Distance Protection Overexcitation Protection (Volts per Hertz) Sync Synchronizing or Synchronizm-check via 4th measuring channel of voltage measurement card Temperature Protection Undervoltage Protection...
  • Page 353 13 Appendix 13.4 List of ANSI Codes ANSI MRU4 Functions Overcurrent (instantaneous) Jam (locked Rotor) Phase Overcurrent (instantaneous) 50N/G Neutral Overcurrent (instantaneous) 50Ns Sensitive Neutral Overcurrent (instantaneous) Neutral Overcurrent (instantaneous) Overcurrent Phase Overcurrent 51N/G Neutral Overcurrent 51Ns Sensitive Neutral Overcurrent 51LR Locked Rotor 51LRS...
  • Page 354 13 Appendix 13.4 List of ANSI Codes ANSI MRU4 Functions 74TC Trip Circuit Supervision Out of Step Tripping Freq. prot. op. Vector Surge Protection mode “delta phi” Auto Reclosure Frequency Protection Underfrequency Protection Overfrequency Protection df/dt ROCOF (df/dt) Lock Out Differential Protection (Generator/Transformer/Busbar) Busbar Differential Protection Generator Differential Protection...

  • Page 355: Revision History

    Woodward Support. Up to date documentation? Please check the web site of Woodward for the latest revision of this Technical Manual and if there is an Errata Sheet with updated information. MRU4-3.6-EN-MAN...
  • Page 356 13 Appendix 13.5 Revision History 13.5.1 Version: 3.6 • Date: 2019-January-31 • Revision: E Software The protection functions of the MRU4 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 357 13 Appendix 13.5 Revision History 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 358 13 Appendix 13.5 Revision History This protocol can also be used as time synchronization source. (See ╚═▷ “Time Synchronization”.) 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.
  • Page 359 13 Appendix 13.5 Revision History should follow the naming scheme "<device(s)>‑<version>‑<language>‑<document type>. (See also ╚═▷ “Comments on the Manual”.) This Technical Manual, for example, was previously (i. e. until Revision 3.4) named DOK‑HB‑MRU4‑2D. Now it has been renamed to MRU4‑3.6‑EN‑MAN. MRU4-3.6-EN-MAN MRU4...

  • Page 360: Version: 3.4

    13 Appendix 13.5 Revision History 13.5.2 Version: 3.4 • Date: 2017-October-01 • Revision: D 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 361 13 Appendix 13.5 Revision History Device Reset« that allows to remove options from the Reset dialog. (See ╚═▷ “Reset to Factory Defaults, Reset All Passwords”.) SelfSupervision Device-internal messages (in particular error messages) are now accessible under the menu [Operation / Self-Supervision / Messages]. All messages that can potentially appear here are described in a separate document, the “HighPROTEC Troubleshooting Guide”...
  • Page 362 13 Appendix 13.5 Revision History 13.5.3 Version: 3.1 • Date: 2017-March-06 • Revision: C 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 363: Version: 3.0.B

    13 Appendix 13.5 Revision History 13.5.4 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 364 13 Appendix 13.5 Revision History 13.5.5 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 365 13 Appendix 13.5 Revision History 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. New “SCADA connection status” signal. Ethernet “TCP Keep Alive” according to RFC 793. Bugfix: •...
  • Page 366 13 Appendix 13.5 Revision History 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 367: Index

    Index Index ANSI  25  198 ................ 27  165 .
  • Page 368 Index ................connection password  49,  50 .
  • Page 369 Index  CTRL  265 ................
  • Page 370 Index ................Recorder  268  (Motor) History...
  • Page 371 Index ................scaling of measured values  64 .
  • Page 372 Index  (20)  168,  212 ................ (21)  168,  212 .
  • Page 373 Please reference publication MRU4-3.6-EN-MAN http://wwdmanuals.com/mru4-2 Woodward Kempen GmbH reserves the right to update any portion of this publication at any time. Information provided by Woodward Kempen GmbH is believed to be correct and reliable. However, Woodward Kempen GmbH assumes no responsibility unless otherwise expressly undertaken.

Table of Contents