Page 1 Preface Contents Introduction SIPROTEC Functions Feeder Automation Mounting and Commissioning Controller 7SC80 Technical Data Appendix V4.0 Literature Manual Glossary Index E50417-G1140-C486-A1...
Page 2 SIPROTEC, SINAUT, SICAM and DIGSI are registered trademarks Document version Release 4.00.02 of Siemens AG. Other designations in this manual might be trade- marks whose use by third parties for their own purposes would in- Release date 12.2011 fringe the rights of the owner.
Page 3 Preface Purpose of this Manual This manual describes the functions, operation, installation, and commissioning of 7SC80 devices. In particu- lar, one will find: • Information regarding the configuration of the scope of the device and a description of the device functions and settings o Chapter 2;...
Page 4 Additional Support Should further information on the System SIPROTEC 4 be desired or should particular problems arise which are not covered sufficiently for the purchaser's purpose, the matter should be referred to the local Siemens rep- resentative. Our Customer Support Center provides a 24-hour service.
Page 5 The operational equipment (device, module) may only be used for such applications as set out in the catalog and the technical description, and only in combination with third-party equipment recommended or approved by Siemens. The successful and safe operation of the device is dependent on proper handling, storage, installation, opera- tion, and maintenance.
Page 6 Preface Typographic and Symbol Conventions The following text formats are used when literal information from the device or to the device appear in the text flow: Parameter Names Designators of configuration or function parameters which may appear word-for-word in the display of the device or on the screen of a personal computer (with operation software DIGSI), are marked in bold letters in monospace type style.
Page 7 Preface Analog input variable AND operation of input variables OR operation of input variables Exclusive OR (antivalence): output is active if only one of the inputs is active Coincidence: output is active if both inputs are active or inactive at the same time Dynamic input signals (edge-triggered) above with positive, below with negative edge...
Page 8 Preface SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 9: Table Of Contents
Contents Introduction................15 Overall Operation.
Page 10 Contents Overcurrent Protection 50, 51, 50N, 51N ..........54 2.2.1 General .
Page 11 Contents Monitoring Functions ............. .120 2.8.1 Measurement Supervision .
Page 12 Contents 2.14 Additional Functions ............. . 158 2.14.1 Message Processing .
Page 13 Contents Mounting and Commissioning .............197 Mounting and Connections .
Page 14 Contents Voltage Protection for Vx............249 Negative Sequence Protection 46-1, 46-2 (Definite Time Characteristic).
Page 15: Introduction
Introduction This chapter introduces the SIPROTEC Feeder Automation Controller 7SC80 and gives an overview of the de- vice's application, properties and functions. Overall Operation Application Scope Characteristics SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 16: Overall Operation
Introduction 1.1 Overall Operation Overall Operation This chapter introduces the SIPROTEC Feeder Automation Controller 7SC80 and gives an overview of the de- vice's application, properties and functions. Analog Inputs The measuring inputs (MI) convert the currents and voltages coming from the measuring transformers and adapt them to the level appropriate for the internal processing of the device.
Page 17 Introduction 1.1 Overall Operation Microcomputer System Apart from processing the measured values, the microcomputer system (μC) also executes the actual protec- tion and control functions. They especially include: • Filtering and preparation of the measured quantities • Continuous monitoring of the measured quantities •...
Page 18: Application Scope
Introduction 1.2 Application Scope Application Scope The Feeder Automation Controller 7SC80 can be used as protection, control and monitoring unit for line pro- tection in networks with grounded or low-resistance grounded neutral point structure. It is suitable for networks that are radial and supplied from a single source, open or closed looped networks, and for lines with sources at both ends.
Page 19 Introduction 1.2 Application Scope Communication The following interfaces are available for communication with external operating, control and memory systems. Local communication with a PC is possible via the USB-DIGSI interface on the front. The DIGSI 4 operating software enables you to perform all operational and evaluation tasks, for example entering and modifying con- figuration and setting parameters, configuring user-specific logic functions, reading out operational indications, fault indications and measured values, reading out and displaying fault records, retrieving device conditions and measured values, issuing control commands.
Page 20: Characteristics
Introduction 1.3 Characteristics Characteristics General Properties • Powerful 32-bit microprocessor system • Complete digital measured value processing and control, from sampling and digitalization of the measured quantities to close and trip decisions for the switchgear component • Complete galvanic and interference-free isolation of the internal processing circuits of the measurement, control and supply circuits of the system using instrument transformers, binary input and output modules, and DC and AC voltage converters.
Page 21 Introduction 1.3 Characteristics Voltage Protection • 2-element undervoltage detection via the positive-sequence system of the voltages, phase-to-phase or phase-to-ground voltages • Phase-specific undervoltage detection • The current criterion can optionally be activated as an additional release criterion. • Separate two-element overvoltage detection of the largest voltages applied or detection of the positive or negative sequence component of the voltages •...
Page 22 Introduction 1.3 Characteristics Flexible Protection Functions • Up to 20 customizable protection functions with three-phase or single-phase operation • Any calculated or directly measured quantity can be evaluated on principle. • Standard protection logic with a constant (i.e. definite-time) characteristic curve •...
Page 23: Functions
Functions This chapter describes the numerous functions available on the SIPROTEC 4 device 7SC80. It shows the setting possibilities for each function in maximum configuration. Information with regard to the determination of setting values as well as formulas, if required, are also provided. Based on the following information, it can also be determined which of the provided functions should be used.
Page 24: General
Functions 2.1 General General The settings associated with the various device functions may be modified by using the operator interface in DIGSI. Some parameters may also be changed using the Web Monitor. The procedure is set out in the SIPRO- TEC System Description /1/.
Page 25 Functions 2.1 General Special Features Most settings are self-explanatory. The special cases are described in the following. If you want to use the setting group change function, set address 103 Grp Chge OPTION to Enabled. In this case, you can select up to four different groups of function parameters between which you can switch quickly and conveniently during operation.
Page 26: Settings
Functions 2.1 General 2.1.1.3 Settings Addr. Parameter Setting Options Default Setting Comments Grp Chge OPTION Disabled Disabled Setting Group Change Option Enabled OSC. FAULT REC. Disabled Enabled Oscillographic Fault Records Enabled Charac. Phase Disabled Definite Time 50/51 Definite Time Charac. Ground Disabled Definite Time 50N/51N...
Page 27 Functions 2.1 General Addr. Parameter Setting Options Default Setting Comments 27/59 Vx Enabled Disabled 27/59 Over/under volt. Prot. for Vx Disabled FLEXIBLE FUNC. Flex. Function 01 Please select Flexible Functions 1...20 Flex. Function 02 Flex. Function 03 Flex. Function 04 Flex.
Page 28: Device, General Settings
Functions 2.1 General 2.1.2 Device, General Settings To assure a correct functioning of the device, some general information is required, e.g. the form in which mes- sages on power system faults are to be output. If the device features a battery charger (ordering option), configure the respective data in the device data, too. 2.1.2.1 General Device Functions Command-Dependent Messages "No Trip –...
Page 29: Battery Charger
Functions 2.1 General 2.1.2.2 Battery Charger General The Feeder Automation Controller 7SC80 in the 24 V/48 V connection variant is equipped with a battery charg- ing control and a battery charger. Batteries with a voltage of 24 V or 48 V may only be connected in these device variants.
Page 30 Functions 2.1 General Operating State of the Battery The operating state of the battery is displayed via an LED on the housing of the 7SC80. The operating state can also be routed to an LED of the display via DIGSI and displayed in the Web Monitor. The associated indi- cations are entered in the event log.
Page 31: Setting Notes
Functions 2.1 General 2.1.2.3 Setting Notes Fault Indications A new pickup by a protection element generally turns off any previously lit LEDs in the Web Monitor so that only the latest fault is displayed. For this fault, you can select whether the stored LED displays and the spontaneous fault indications appear after the new pickup or only after a new trip command has been issued.
Page 32: Settings
Functions 2.1 General 2.1.2.4 Settings Addr. Parameter Setting Options Default Setting Comments Battery Charger Battery Charger I bat. charged 20 .. 100 mA 40 mA Battery full charged current V bat. crit. 22.0 .. 24.0 V 23.0 V Battery critical voltage level V bat.
Page 33: Information List
Functions 2.1 General 2.1.2.5 Information List Information Type of In- Comments formation >Light on >Back Light on Reset LED IntSP Reset LED DataStop IntSP Stop data transmission Test mode IntSP Test mode Feeder gnd IntSP Feeder GROUNDED Brk OPENED IntSP Breaker OPENED HWTestMod IntSP...
Page 34 Functions 2.1 General Information Type of In- Comments formation Relay CLOSE General CLOSE of relay PU Time Time from Pickup to drop out TRIP Time Time from Pickup to TRIP 2150 Ext.V. invalid Invalid external voltage 2151 Ext.Volt. valid Valid external voltage 2152 Battery invalid Invalid external battery connected...
Page 35: Power System Data 1
Functions 2.1 General 2.1.3 Power System Data 1 2.1.3.1 Description The device requires certain data regarding the network and substation so that it can adapt its functions to this data depending on the application. This may be, for instance, nominal data of the substation and measuring transformers, polarity and connection of the measured quantities, breaker properties (where applicable), etc.
Page 36 Functions 2.1 General Polarity of Current Transformers (Power System ) At address 201 CT Starpoint, you enter the polarity of the current transformers, that is, the location of the CT neutral point (the following figure applies correspondingly for two current transformers). This setting deter- mines the measuring direction of the device (forward = line direction).
Page 37 Functions 2.1 General Table 2-1 Connection Types of the Voltage Transformers Connection type Functions Directional definite-time/in- Directional definite-time/in- Fault locator Fuse failure verse-time overcurrent protec- verse-time overcurrent pro- monitor tion phase tection ground Van, Vbn, Vcn Vab, Vbc, VGnd Vab, Vbc Direction determination is only possible by evaluating the negative sequence system (otherwise selection of zero sequence system or negative sequence system) Measured values, which due to the chosen voltage connection cannot be calculated, will be displayed as dots.
Page 38 Functions 2.1 General Transformation Ratio of Voltage Transformers (VTs) Address 206 Vph/Vdelta informs the device of the adjustment factor between the phase voltage and the dis- placement voltage. This information is relevant for the processing of ground faults (in grounded systems and ungrounded systems), for the operational measured value V and measured-variable monitoring.
Page 39 Functions 2.1 General Ground Fault (Protection Parameters) With parameter 613 Gnd O/Cprot. w., you define whether breaker failure protection or fuse failure monitor operate with measured values (Ignd (measured)) or with the quantities calculated from the 3 phase currents (3I0 (calcul.)). In the first case, the quantity measured at the fourth current input is evaluated. In the latter case, the summation current is calculated from the 3 phase current inputs.
Page 40: Settings
Functions 2.1 General 2.1.3.3 Settings Addresses which have an appended "A" can only be changed with DIGSI, under "Display Additional Settings". The table indicates region-specific default settings. Column C (configuration) indicates the corresponding sec- ondary nominal current of the current transformer. Addr.
Page 41: Information List
Functions 2.1 General Addr. Parameter Setting Options Default Setting Comments Vph-LPS I sec 0.50 .. 20.00 V 10.00 V Rated secondary voltage for current LPS Vnom prim Vx 0.10 .. 800.00 kV 20.00 kV Rated Primary Voltage Vx Battery Volt. 24 V 24 V Battery voltage type...
Page 42: Oscillographic Fault Records
Functions 2.1 General 2.1.4 Oscillographic Fault Records The Multifunctional Protection with Control 7SC80 is equipped with a fault record memory. The instantaneous values of the measured values and v (voltages depending on connection) are sampled at intervals of 1.0 ms (at 50 Hz) and stored in a revolving buffer (20 samples per cycle).
Page 43: Setting Notes
Functions 2.1 General 2.1.4.2 Setting Notes Configuration Fault recording (waveform capture) will only take place if address 104 OSC. FAULT REC. is set to Enabled. Other settings pertaining to fault recording (waveform capture) are found in the OSC. FAULT REC. submenu of the SETTINGS menu.
Page 44: Settings
Functions 2.1 General 2.1.4.3 Settings Addr. Parameter Setting Options Default Setting Comments WAVEFORMTRIGGE Save w. Pickup Save w. Pickup Waveform Capture Save w. TRIP Start w. TRIP WAVEFORM DATA Fault event Fault event Scope of Waveform Data Pow.Sys.Flt. MAX. LENGTH 0.30 ..
Page 45: Settings Groups
Functions 2.1 General 2.1.5 Settings Groups Up to four different setting groups can be created for establishing the device's function settings. 2.1.5.1 Description Changing Setting Groups The setting groups can be changed locally during operation via the Web Monitor, via binary inputs (if routed correspondingly) or via the interfaces.
Page 46: Settings
Functions 2.1 General 2.1.5.3 Settings Addr. Parameter Setting Options Default Setting Comments CHANGE Group A Group A Change to Another Setting Group Group B Group C Group D Binary Input Protocol 2.1.5.4 Information List Information Type of In- Comments formation P-GrpA act IntSP Setting Group A is active...
Page 47: Power System Data 2
Functions 2.1 General 2.1.6 Power System Data 2 2.1.6.1 Description The general protection data (P.System Data 2) include parameters common to all functions, i.e. not asso- ciated with a specific protection or monitoring function. In contrast to the P.System Data 1 discussed before, they can be changed with the parameter group.
Page 48 Functions 2.1 General Calculation example: 20 kV free line 120 mm with the following data: /s = 0.88 Ω/km (1.42 Ω/mile) Zero sequence resistance /s = 1.26 Ω/km (2.03 Ω/mile ) Zero sequence reactance /s = 0.24 Ω/km (0.39 Ω/mile ) Positive sequence resistance /s = 0.34 Ω/km (0.55 Ω/mile ) Positive sequence reactance...
Page 49 Functions 2.1 General Calculation example: In the following, the same line as illustrated in the example for ground impedance ratios (above) and additional data on the voltage transformers will be used: Current Transformers 500 A/5 A Voltage Transformers 20 kV/0.1 kV The secondary reactance per unit length is calculated as follows: Line Angle (only for Fault Location) The setting of the line angle is only important for the utilization of the line fault location function.
Page 50 Functions 2.1 General Line Length (only for Fault Location) The setting of the line length is only important for the utilization of the line fault location function. The line length is required so that the fault location can be given as a reference value (in %). Furthermore, when using several line sections, the respective length of the individual sections is defined.
Page 51: Settings
Functions 2.1 General 2.1.6.3 Settings The table indicates region-specific default settings. Column C (configuration) indicates the corresponding sec- ondary nominal current of the current transformer. Addr. Parameter Setting Options Default Setting Comments 1101 FullScaleVolt. 0.10 .. 800.00 kV 20.00 kV Measurem:FullScaleVolt- age(Equipm.rating) 1102...
Page 52: Information List
Functions 2.1 General Addr. Parameter Setting Options Default Setting Comments 6017 S2: Line length 0.1 .. 1000.0 km 100.0 km S2: Line length in kilometer 6021 S3: RE/RL -0.33 .. 7.00 1.00 S3: Zero seq. compensating factor RE/RL 6022 S3: XE/XL -0.33 ..
Page 53: En100-Module
Functions 2.1 General 2.1.7 EN100-Module 2.1.7.1 Description The EN100-Module enables integration of the 7SC80 in 100-Mbit communication networks in control and au- tomation systems with the protocols according to IEC 61850 standard. This standard permits uniform commu- nication of the devices without gateways and protocol converters. Even when installed in heterogeneous envi- ronments, SIPROTEC 4 relays therefore provide for open and interoperable operation.
Page 54: Overcurrent Protection 50, 51, 50N, 51N
Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N Overcurrent Protection 50, 51, 50N, 51N Overcurrent protection is the main protection function of the 7SC80 relay. Each phase current and the ground current is provided with four elements. All elements are independent from each other and can be combined as desired.
Page 55: Definite Time, High-Set Elements 50-3, 50-2, 50N-3, 50N-2
Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N 2.2.2 Definite Time, High-set Elements 50-3, 50-2, 50N-3, 50N-2 For each Element, an individual pickup value 50-3 PICKUP, 50-2 PICKUP or 50N-3 PICKUP, 50N-2 PICKUP is set. For 50-3 PICKUP and 50N-3 PICKUP, it is possible to measure the Instantaneous in ad- dition to Fundamental and True RMS.
Page 56 Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N Figure 2-3 Logic diagram for the high-current element 50-2 for phases If parameter 1213 MANUAL CLOSE is set to 50-2 instant. or 50-3 instant. and manual close detection is used, a pickup causes instantaneous tripping even if the Element is blocked via a binary input. SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 57: Definite Time Overcurrent Elements 50-1, 50N-1
Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N Figure 2-4 Logic diagram for the high-current element 50N-2 If parameter 1313 MANUAL CLOSE is set to 50N-2 instant. or 50N-3 instant. and manual close de- tection is used, a pickup causes instantaneous tripping even if the Element is blocked via a binary input. 2.2.3 Definite Time Overcurrent Elements 50-1, 50N-1 For each Element an individual pickup value 50-1 PICKUP or 50N-1 PICKUP is set.
Page 58 Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N exceeded again after expiry of the trip-command delay time, while the dropout delay time is still running, trip- ping occurs immediately. Pickup stabilization of the overcurrent elements 50-1 or 50N-1 by means of settable dropout time is deactivated if an inrush pickup is present since an inrush does not represent an intermittent fault.
Page 59 Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N Figure 2-6 Logic diagram of the dropout delay for 50-1 Figure 2-7 Logic diagram for the overcurrent element 50N-1 If parameter 1313 MANUAL CLOSE is set to 50N-1 instant. and manual close detection is used, a pickup causes instantaneous tripping even if the Element is blocked via a binary input.
Page 60: Inrush Restraint
Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N Figure 2-8 Logic of the dropout delay for 50N-1 2.2.4 Inrush Restraint When the Feeder Automation Controller 7SC80 is installed, for instance, to protect a power transformer feeder, high inrush currents will flow when the transformer is energized. These inrush currents may be several times the nominal transformer current, and may last from several 10 milliseconds to several seconds, depending on the transformer size and design.
Page 61 Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N Cross Blocking Since inrush restraint operates individually for each phase, protection is ideal where a power transformer is en- ergized into a single-phase fault and inrush currents are detected on a different healthy phase. However, the protection feature can be configured to allow that not only this phase element but also the remaining elements (including ground) are blocked (the so-called CROSS BLOCK function, address 2203) if the permissible har- monic component of the current is exceeded for only one phase.
Page 62 Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N Figure 2-9 Logic diagram for inrush restraint SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 63: Pickup Logic And Tripping Logic
Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N 2.2.5 Pickup Logic and Tripping Logic The pickup annunciations of the individual phases (or ground) and the individual elements are combined with each other in such a way that the phase information and the Element that has picked up are issued: Table 2-3 Pickup Indications of Overcurrent Protection Internal indication...
Page 64 Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N Depending on the setting of parameter , the device can also be used in specific system configuration with regard to current connections. Further information can be found under Section 2.1.3.2, „Current Connections“. Measurement Methods The comparison values to be used for the respective element can be set in the setting sheets for the elements.
Page 65 Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N The nominal current of the transformer is: = 84 A (High Voltage Side) = 462 A (Low Voltage NomT, 110 NomT, 20 Side) Current Transformer (High Voltage Side) 100 A/1 A Current Transformer (Low Voltage Side) 500 A/1 A Due to the following definition the following setting applies to the protection device: The 50-2 high-set current element must be set higher than...
Page 66 Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N 50-1 Element (phases) For setting the 50-1 element, the maximum anticipated load current must be considered. Pickup due to over- load must never occur since in this mode, the device operates as fault protection with correspondingly short tripping times and not as overload protection.
Page 67 Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N If the current exceeds the value set in address 2205 I Max, no further restraint will take place for the 2nd har- monic. Manual Close Mode (phases,ground) When a circuit breaker is closed onto a faulted line, a high-speed trip by the circuit breaker is usually desired. For overcurrent or high-set Element the delay may be bypassed via a Manual Close pulse, thus resulting in instantaneous tripping.
Page 68: Settings
Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N 2.2.7 Settings Addresses which have an appended "A" can only be changed with DIGSI, under "Display Additional Settings". The table indicates region-specific default settings. Column C (configuration) indicates the corresponding sec- ondary nominal current of the current transformer. Addr.
Page 69: Information List
Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N Addr. Parameter Setting Options Default Setting Comments 1315A 50N T DROP-OUT 0.00 .. 60.00 sec 0.00 sec 50N Drop-Out Time Delay 1316A 50N-3 active Always Always 50N-3 active 0.25 .. 35.00 A; ∞ ∞...
Page 70 Functions 2.2 Overcurrent Protection 50, 51, 50N, 51N Information Type of In- Comments formation 1765 50N/51NPickedup 50N/51N picked up 1767 50-3 picked up 50-3 picked up 1768 50N-3 picked up 50N-3 picked up 1769 50-3 TRIP 50-3 TRIP 1770 50N-3 TRIP 50N-3 TRIP 1787 50-3 TimeOut...
Page 71: Directional Overcurrent Protection 67, 67N
Functions 2.3 Directional Overcurrent Protection 67, 67N Directional Overcurrent Protection 67, 67N Directional overcurrent protection includes two elements each for the phase currents and the ground current. All elements operate with a definite tripping time, they are independent of each other and can be combined as desired.
Page 72 Functions 2.3 Directional Overcurrent Protection 67, 67N For line sections supplied from two sources or in ring-operated lines, the overcurrent protection has to be sup- plemented by the directional criterion. Figure 2-12 shows a ring system where both energy sources are merged to one single source.
Page 73: Definite Time, Directional High-Set Elements 67-2, 67N-2
Functions 2.3 Directional Overcurrent Protection 67, 67N 2.3.2 Definite Time, Directional High-set Elements 67-2, 67N-2 For each element an individual pickup value 67-2 PICKUP or 67N-2 PICKUP is set which can be measured as Fundamental or True RMS. Phase and ground current are compared separately with the pickup values of the 67-2 PICKUP and 67N-2 PICKUP relay elements.
Page 74 Functions 2.3 Directional Overcurrent Protection 67, 67N Figure 2-13 Logic diagram for directional high-current element 67-2 for phases If parameter 1513 MANUAL CLOSE is set to 67-2 instant. and manual close detection applies, the trip is initiated as soon as the pickup conditions arrive, even if the element is blocked via a binary input. SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 75: Definite Time, Directional Time Overcurrent Elements 67-1, 67N-1
Functions 2.3 Directional Overcurrent Protection 67, 67N 2.3.3 Definite Time, Directional Time Overcurrent Elements 67-1, 67N-1 For each element an individual pickup value 67-1 PICKUP or 67N-1 PICKUP is set which can be measured as Fundamental or True RMS. Phase and ground currents are compared separately with the common setting value 67-1 PICKUP or 67N-1 PICKUP.
Page 76 Functions 2.3 Directional Overcurrent Protection 67, 67N Figure 2-14 Logic diagram for directional overcurrent element 67-1 for phases If parameter 1513 MANUAL CLOSE is set to 67-1 instant. and manual close detection applies, the trip is initiated as soon as the pickup conditions arrive, even if the element is blocked via a binary input. The dropout delay does only function if no inrush was detected.
Page 77: Interaction With Fuse Failure Monitor (Ffm)
Functions 2.3 Directional Overcurrent Protection 67, 67N Figure 2-15 Logic of the dropout delay for 67-1 2.3.4 Interaction with Fuse Failure Monitor (FFM) Spurious tripping might be caused by a measuring voltage failure due to a short circuit, a phase failure in the voltage transformer secondary system, or a pickup of the voltage transformer mcb (fuse).
Page 78 Functions 2.3 Directional Overcurrent Protection 67, 67N With three-phase short-line faults, memory voltage values are used to clearly determine the direction if the measurement voltages are not sufficient.Upon the expiration of the storage time period (2 s), the detected di- rection is saved, as long as no sufficient measuring voltage is available.
Page 79 Functions 2.3 Directional Overcurrent Protection 67, 67N Measured Values for the Determination of Fault Direction Each phase has its own phase measuring element. The fourth measuring element is used as directional ground element. If the current exceeds the pickup threshold of a phase or that of the ground path, the direction deter- mination is started by the associated measuring element.
Page 80 Functions 2.3 Directional Overcurrent Protection 67, 67N Figure 2-17 Rotation of the reference voltage, directional phase element The rotated reference voltage defines the forward and reverse area, see Figure 2-18. The forward area is a range of ±86° around the rotated reference voltage V If the vector of the fault current is in this area, the ref,rot device detects forward direction.
Page 81 Functions 2.3 Directional Overcurrent Protection 67, 67N Direction Determination of Directional Ground Element with Ground Values Figure 2-19 shows the treatment of the reference voltage for the directional ground element, also based on a single-phase ground fault in phase A. Contrary to the directional phase elements, which work with the unfaulted voltage as reference voltage, the fault voltage itself is the reference voltage for the directional ground element.
Page 82: Setting Notes
Functions 2.3 Directional Overcurrent Protection 67, 67N 2.3.7 Setting Notes General When selecting the directional time overcurrent protection in DIGSI, a dialog box appears with several tabs for setting the associated parameters. Depending on the functional scope specified during configuration of the pro- tective functions in addresses 115 67/67-TOC and 116 67N/67N-TOC, the number of tabs can vary.
Page 83 Functions 2.3 Directional Overcurrent Protection 67, 67N Nevertheless, the following contains some setting examples for special applications (Table 2-6). The following must be observed: With the phase directional elements, the reference voltage (fault-free voltage) for phase- ground-faults is vertical on the short-circuit voltage. For this reason, the resulting setting of the angle of rotation is (see also Section 2.3.8): Ref.
Page 84 Functions 2.3 Directional Overcurrent Protection 67, 67N Note When the 67-1 Element or the 67N-1 Element picks up, the phase-specific directional indications „forward“ or „reverse“ are generated (indications 2628 to 2636). Pickup of the 67-2 Element or the 67N-2 Element lies within the parameterized directional range without direc- tional indication.
Page 85 Functions 2.3 Directional Overcurrent Protection 67, 67N For parallel transformers supplied from a single source (see "Applications"), the delay of elements 67-1 DELAY located on the load side of the transformers may be set to 0 without provoking negative impacts on selectivity.
Page 86: Settings
Functions 2.3 Directional Overcurrent Protection 67, 67N Internal Control Function The manual closing information must be allocated via CFC (interlocking task-level) using the CMD_Information block, if the internal control function is used. Figure 2-21 Example for the generation of a manual close signal using the internal control function 2.3.8 Settings Addresses which have an appended "A"...
Page 87 Functions 2.3 Directional Overcurrent Protection 67, 67N Addr. Parameter Setting Options Default Setting Comments 0.05 .. 35.00 A; ∞ 1604 67N-1 PICKUP 0.20 A 67N-1 Pickup 0.25 .. 175.00 A; ∞ 1.00 A 0.00 .. 60.00 sec; ∞ 1605 67N-1 DELAY 0.50 sec 67N-1 Time Delay 1613A...
Page 88: Information List
Functions 2.3 Directional Overcurrent Protection 67, 67N 2.3.9 Information List Information Type of In- Comments formation 2604 >BLK 67/67-TOC >BLOCK 67/67-TOC 2614 >BLK 67N/67NTOC >BLOCK 67N/67N-TOC 2615 >BLOCK 67-2 >BLOCK 67-2 2616 >BLOCK 67N-2 >BLOCK 67N-2 2621 >BLOCK 67-1 >BLOCK 67-1 2623 >BLOCK 67N-1 >BLOCK 67N-1...
Page 89: Voltage Protection 27, 59
Functions 2.4 Voltage Protection 27, 59 Voltage Protection 27, 59 Voltage protection has the task to protect electrical equipment against undervoltage and overvoltage. Both op- erational states are abnormal as overvoltage may cause for example insulation problems or undervoltage may cause stability problems.
Page 90 Functions 2.4 Voltage Protection 27, 59 Table 2-7 Voltage Protection, Selectable Voltages Function Three-phase connection Selectable voltage Threshold to be set as (parameter 213) (parameter 614/615) Overvoltage Van, Vbn, Vcn Vphph (largest phase-to-phase voltage) Phase-to-phase voltage Vph-n (largest phase-to-ground voltage) Phase-to-ground voltage V1 (positive sequence voltage) Positive sequence voltage...
Page 91: Overvoltage Protection 59
Functions 2.4 Voltage Protection 27, 59 Note If parameter CURRENT SUPERV. is set to disabled in address 5120, the device picks up immediately without measurement voltage and the undervoltage protection function in pickup. Apply measuring voltage or block the voltage protection to continue with configuration. Moreover you have the option of setting a flag via device op- eration for blocking the voltage protection.
Page 92: Undervoltage Protection 27
Functions 2.4 Voltage Protection 27, 59 Figure 2-22 Logic diagram of the overvoltage protection 2.4.3 Undervoltage Protection 27 Function Undervoltage protection consists of two definite time elements (27-1 PICKUP and 27-2 PICKUP). Therefore, tripping can be time-coordinated depending on how severe voltage collapses are. Voltage thresholds and time delays can be set individually for both elements.
Page 93 Functions 2.4 Voltage Protection 27, 59 Only after the fault has been cleared, i.e. when the voltage increases above the dropout level, the element drops out and allows reclosing of the circuit breaker. Figure 2-23 Typical fault profile for source side connection of the voltage transformer (without current su- pervision) Figure 2-24 shows a fault profile for a load side connection of the voltage transformers.
Page 94 Functions 2.4 Voltage Protection 27, 59 Figure 2-24 Typical fault profile for load side connection of the voltage transformers (with current supervi- sion) Upon the closing of the circuit breaker, current criterion is delayed for a short period of time. If the voltage cri- terion drops out during this time period (about 60 ms), the protection function does not pick up.
Page 95 Functions 2.4 Voltage Protection 27, 59 Figure 2-25 Logic diagram of the undervoltage protection SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 96: Setting Notes
Functions 2.4 Voltage Protection 27, 59 2.4.4 Setting Notes General Voltage protection is only effective and accessible if address 150 27/59 is set to Enabled during configuration of protection functions. If this function is not required, then Disabled is set. The voltage to be evaluated is selected in Power System Data 1 (see Chapter 2.4, Table 2-7).
Page 97 Functions 2.4 Voltage Protection 27, 59 Overvoltage protection comprises two elements. Thus, with configuration of the negative system, a longer time delay (address 5004, 59-1 DELAY) may be assigned to the lower Element (address 5015, 59-1 PICKUP V2 and a shorter time delay (address 5007, 59-2 DELAY) may be assigned to the upper Element (address 5016, 59-2 PICKUP V2).
Page 98 Functions 2.4 Voltage Protection 27, 59 Undervoltage Protection - Positive Sequence System V1 The positive sequence component (V1) can be evaluated for the undervoltage protection. Especially in case of stability problems, their acquisition is advantageous because the positive sequence system is relevant for the limit of the stable energy transmission.
Page 99 Functions 2.4 Voltage Protection 27, 59 Phase-specific Pickup Voltages Undervoltage Protection The phase-specific pickup voltages of the two undervoltage protection elements are set at the following ad- dresses: 27-1 PhA Pickup Address 5130 or 5131 27-1 PhB Pickup Address 5132 or 5133 27-1 PhC Pickup Address 5134 or 5135 27-2 PhA Pickup...
Page 100: Settings
Functions 2.4 Voltage Protection 27, 59 2.4.5 Settings Addresses which have an appended "A" can only be changed with DIGSI, under "Display Additional Settings". Addr. Parameter Setting Options Default Setting Comments 5001 FCT 59 59 Overvoltage Protection Alarm Only 5002 59-1 PICKUP 20 ..
Page 101: Information List
Functions 2.4 Voltage Protection 27, 59 Addr. Parameter Setting Options Default Setting Comments 5103 27-1 PICKUP 10 .. 200 V 45 V 27-1 Pickup 0.00 .. 100.00 sec; ∞ 5106 27-1 DELAY 1.50 sec 27-1 Time Delay 5110 27-2 PICKUP 10 ..
Page 102 Functions 2.4 Voltage Protection 27, 59 Information Type of In- Comments formation 2210 27-2 PhB pickup 27-2 Phase B Undervoltage pickup 2211 27-2 PhC pickup 27-2 Phase C Undervoltage pickup 2212 27-2 PhA PU CS 27-2 Phase A PICKUP w/curr. Supervision 2213 27-2 PhB PU CS 27-2 Phase B PICKUP w/curr.
Page 103: 27/59 Under/Over Voltage For Vx
Functions 2.5 27/59 Under/Over Voltage for Vx 27/59 Under/Over Voltage for Vx The Feeder Automation Controller 7SC80 features a voltage input Vx which is provided in all device variants. This voltage can be used for single-phase voltage protection. 2.5.1 Function Description Overvoltage Protection Single-phase overvoltage protection includes two elements.
Page 104: Setting Notes
Functions 2.5 27/59 Under/Over Voltage for Vx Single-phase undervoltage protection works without any current criterion. Please keep this in mind during pa- rameterization and commissioning. Figure 2-27 Logic diagram for single-phase undervoltage protection 2.5.2 Setting Notes General The single-phase voltage protection via Vx is set at address 370 27/59 Vx = Enabled. If this function is not required, select Disabled.
Page 105 Functions 2.5 27/59 Under/Over Voltage for Vx Overvoltage Protection Overvoltage protection includes two elements. You can set the pickup thresholds at the following addresses: 59-1 Vx Pickup Address 391 59-2 Vx Pickup Address 392 The times for tripping delay are set at the following addresses: 59-1 Vx Delay Address 393 59-2 Vx Delay...
Page 106: Settings
Functions 2.5 27/59 Under/Over Voltage for Vx 2.5.3 Settings Addresses which have an appended "A" can only be changed with DIGSI, under "Display Additional Settings". Addr. Parameter Setting Options Default Setting Comments 27 Vx 27 Undervoltage prot. for Vx Alarm Only 27-1 Vx Pickup 10 ..
Page 107: Negative Sequence Protection 46
Functions 2.6 Negative Sequence Protection 46 Negative Sequence Protection 46 Negative sequence protection detects unbalanced loads on the system. Applications • This protection function can be used to detect interruptions, short-circuits and polarity problems in the con- nections to the current transformers. •...
Page 108: Inverse Time Characteristic 46-Toc
Functions 2.6 Negative Sequence Protection 46 2.6.2 Inverse Time Characteristic 46-TOC The inverse time Element is dependent on the ordered device version. It operates with IEC or ANSI character- istic tripping curves. The curves and associated formulas are given in the Technical Data. When programming the inverse time characteristic also definite time elements 46-2 PICKUP and 46-1 PICKUP are available (see a foregoing paragraph).
Page 109 Functions 2.6 Negative Sequence Protection 46 between the dropout value (95 % of the pickup value) and 90 % of the setting value, the incrementing and dec- rementing process is in idle state. Disk emulation offers advantages when the behavior of the negative sequence protection must be coordinated with other relays in the system based on electromagnetic measuring principles.
Page 110: Setting Notes
Functions 2.6 Negative Sequence Protection 46 the dropout delay time has elapsed, the pickup is reported OFF and the trip delay time is reset unless the threshold has been exceeded again. If the threshold is exceeded again during the dropout delay time, the time is canceled.
Page 111 Functions 2.6 Negative Sequence Protection 46 Definite Time Elements The unbalanced load protection function comprises two elements. Therefore, the upper Element (address 4004 46-2 PICKUP) can be set to a short time delay4005 46-2 DELAY) and the lower Element (address 4002 46-1 PICKUP) can be set to a somewhat longer time delay (address 4003 46-1 DELAY).
Page 112 Functions 2.6 Negative Sequence Protection 46 Since transformers transform symmetrical currents according to the transformation ratio "CTR", the relationship between negative sequence currents and total fault current for phase-to-phase faults and phase-to-ground faults are valid for the transformer as long as the turns ratio "CTR" is taken into consideration. Consider a transformer with the following data: Base Transformer Rating = 16 MVA...
Page 113 Functions 2.6 Negative Sequence Protection 46 The unbalanced load value is set at address 4008 46-TOC PICKUP. The corresponding time multiplier is ac- cessible via address 4009 46-TOC TIMEDIAL. The time multiplier can also be set to ∞. In this case, the Element will not trip after pickup. However, pickup, will be signaled.
Page 114: Settings
Functions 2.6 Negative Sequence Protection 46 2.6.4 Settings Addresses which have an appended "A" can only be changed with DIGSI, under "Display Additional Settings". The table indicates region-specific default settings. Column C (configuration) indicates the corresponding sec- ondary nominal current of the current transformer. Addr.
Page 115: Frequency Protection 81 O/U
Functions 2.7 Frequency Protection 81 O/U Frequency Protection 81 O/U The frequency protection function detects overfrequencies and underfrequencies in the power system. If the frequency lies outside the permissible range, appropriate switching actions are initiated. Applications • Underfrequency is caused by an increased real power demand of the power system or faulty operation of the frequency regulation.
Page 116: Setting Notes
Functions 2.7 Frequency Protection 81 O/U Figure 2-31 Logic diagram of the frequency protection 2.7.2 Setting Notes General Frequency protection is only in effect and accessible if address 154 81 O/U is set to Enabled during config- uration of protective functions. If the function is not required Disabled is set. The function can be turned ON or OFF under address 5401 FCT 81 O/U.
Page 117 Functions 2.7 Frequency Protection 81 O/U Minimum Voltage Address 5402 Vmin is used to set the minimum voltage. Frequency protection is blocked as soon as the minimum voltage is undershot. On all three-phase connections and single-phase connections of a phase-to-phase voltage, the threshold must be set as a phase-to-phase value.
Page 118: Settings
Functions 2.7 Frequency Protection 81 O/U 2.7.3 Settings Addresses which have an appended "A" can only be changed with DIGSI, under "Display Additional Settings". The table indicates region-specific default settings. Column C (configuration) indicates the corresponding sec- ondary nominal current of the current transformer. Addr.
Page 119: Information List
Functions 2.7 Frequency Protection 81 O/U 2.7.4 Information List Information Type of In- Comments formation 5203 >BLOCK 81O/U >BLOCK 81O/U 5206 >BLOCK 81-1 >BLOCK 81-1 5207 >BLOCK 81-2 >BLOCK 81-2 5208 >BLOCK 81-3 >BLOCK 81-3 5209 >BLOCK 81-4 >BLOCK 81-4 5211 81 OFF 81 OFF...
Page 120: Monitoring Functions
Functions 2.8 Monitoring Functions Monitoring Functions The device features comprehensive monitoring functions which cover both device hardware and software. The measured values, too, are continuously checked for plausibility so that the current and voltage transformer cir- cuits are largely included into the monitoring system. 2.8.1 Measurement Supervision 2.8.1.1 General...
Page 121 Functions 2.8 Monitoring Functions Measurement Value Acquisition – Currents The monitoring of the device-internal measured-value acquisition of the currents can be effected via the current sum monitoring. Up to four input currents are measured by the device. If the three phase currents and the ground current from the current transformer neutral point are connected with the device, the sum of the four digitized currents must be zero.
Page 122: Software Monitoring
Functions 2.8 Monitoring Functions Figure 2-33 Logic diagram for the fast current sum monitoring AD Transformer Monitoring The digitized sampled values are being monitored in respect of their plausibility. If the result is not plausible, message 181 „Error A/D-conv.“ is issued. The protection is blocked, thus preventing unwanted operation. Furthermore, a fault record is generated for recording of the internal fault.
Page 123: Monitoring Of The Transformer Circuits
Functions 2.8 Monitoring Functions 2.8.1.4 Monitoring of the Transformer Circuits Open circuits or short circuits in the secondary circuits of the current and voltage transformers, as well as faults in the connections (important during commissioning!), are detected and reported by the device. The measured quantities are periodically checked in the background for this purpose, as long as no system fault is present.
Page 124 Functions 2.8 Monitoring Functions This failure is therefore located below the curve for all values and is reported as „Fail V balance“. Figure 2-35 Voltage symmetry monitoring Phase Sequence of Voltage and Current To detect swapped phase connections in the voltage and current input circuits, the phase sequence of the phase-to-phase measured voltages and the phase currents are checked by monitoring the sequence of same polarity zero crossing of the voltages.
Page 125: Measurement Voltage Failure Detection
Functions 2.8 Monitoring Functions 2.8.1.5 Measurement Voltage Failure Detection Requirements The measurement voltage failure detection function, referred to as „Fuse Failure Monitor“ (FFM), only operates under the following condition: • Three phase-to-ground voltages are connected; with phase-to-phase voltages and V or single-phase con- nection, the function is disabled.
Page 126 Functions 2.8 Monitoring Functions Figure 2-36 Logic diagram for the fuse failure monitor for grounded systems Mode of Operation - Isolated System The FFM can also function in isolated and compensated (grounded) systems where only low ground currents are expected. This is indicated to the device via address 5301 FUSE FAIL MON.. The logic diagram on the mode of operation in an isolated system is illustrated in Figure 2-37.
Page 127 Functions 2.8 Monitoring Functions Figure 2-37 Logic diagram of the Fuse Failure Monitor for ungrounded networks Single- and Two-phase Faults in Voltage Transformer Circuits The measuring voltage failure detection is based on the fact that a significant negative sequence system is formed in the voltage during single- or two-phase voltage failure, however without influencing the current.
Page 128: Setting Notes
Functions 2.8 Monitoring Functions If a fault occurs in the voltage transformer secondary system, the following rules apply to the Two-phase Fail- ure: In case of a failure of one or two phases of the primary system, the current also shows a negative sequence system of 0.5 or 1.
Page 129 Functions 2.8 Monitoring Functions Note Current sum monitoring can operate properly only when the three phase currents and at the fourth current mea- ) for ground current the ground current of the protected line are connected (see Power System suring input (I Data 1).
Page 130: Settings
Functions 2.8 Monitoring Functions 2.8.1.7 Settings The table indicates region-specific default settings. Column C (configuration) indicates the corresponding sec- ondary nominal current of the current transformer. Addr. Parameter Setting Options Default Setting Comments 5301 FUSE FAIL MON. Fuse Fail Monitor Solid grounded Coil.gnd./isol.
Page 131: Information List
Functions 2.8 Monitoring Functions 2.8.1.8 Information List Information Type of In- Comments formation Fail I Superv. Failure: General Current Supervision Failure Σ I Failure: Current Summation Fail I balance Failure: Current Balance Fail V balance Failure: Voltage Balance VT FuseFail>10s VT Fuse Failure (alarm >10s) VT FuseFail VT Fuse Failure (alarm instantaneous)
Page 132: Malfunction Responses Of Monitoring Equipment
Functions 2.8 Monitoring Functions 2.8.2 Malfunction Responses of Monitoring Equipment The malfunction responses of monitoring equipment are summarized in the following. 2.8.2.1 Description Malfunction Responses Depending on the type of malfunction discovered, an indication is sent, a restart of the processor system is initiated, or the device is shut down.
Page 133 Functions 2.8 Monitoring Functions Table 2-8 Summary of the Device's Malfunction Responses Monitoring Possible causes Malfunction response Indication (No.) Output Auxiliary voltage failure External (auxiliary volt- Device shutdown All LEDs dark drops age) Internal (converter) Buffer battery Internal (buffer battery) Indication „Fail Battery“...
Page 134: Fault Locator
Functions 2.9 Fault Locator Fault Locator The measurement of the distance to a short-circuit fault is a supplement to the protection functions. Power transmission within the system can be increased when the fault is located and cleared faster. 2.9.1 Description General The fault locator is a stand-alone and independent function which uses the line and power system parameters set in other functions.
Page 135: Setting Notes
Functions 2.9 Fault Locator Table 2-9 Assignment of Pickup - Evaluated Loops Pickup by fault type measured loop signaled loop A-N, B-N, C-N lowest impedance A-B-N A-B, A-N, B-N Lowest impedance A-C-N C-A, A-N, B-N Lowest impedance B-C-N B-C, B-N, C-N Lowest impedance A-B-C A-B, B-C, C-A...
Page 136: Settings
Functions 2.9 Fault Locator Line Data To calculate the fault distance in kilometers or miles, the device needs the per distance reactance of the line in Ω/kilometer or Ω/mile. Furthermore, the line length in km or miles, the angle of the line impedance, and resis- tance and reactance ratios are required.
Page 137: Breaker Failure Protection 50Bf
Functions 2.10 Breaker Failure Protection 50BF 2.10 Breaker Failure Protection 50BF The breaker failure protection function monitors proper tripping of the relevant circuit breaker. 2.10.1 Description General If after a programmable time delay, the circuit breaker has not opened, breaker failure protection issues a trip signal to isolate the failure breaker by tripping other surrounding backup circuit breaker (see example in the figure below).
Page 138 Functions 2.10 Breaker Failure Protection 50BF the set threshold or thresholds (enabled w/ 3I0>) are detected, the breaker failure protection trips even if the auxiliary criterion indicates „Breaker Open“. Monitoring of the Current Flow At Address 170 50BF, you can set whether the current criterion can already be met by a single phase current (setting Enabled) or whether another current is taken into consideration for the plausibility check (setting enabled w/ 3I0>), see following Figure.
Page 139 Functions 2.10 Breaker Failure Protection 50BF Monitoring of the Circuit Breaker Auxiliary Contacts Evaluation of the circuit breaker's auxiliary contacts depends on the type of contacts, and how they are con- nected to the binary inputs: • the auxiliary contacts for circuit breaker "open" (4602 „>52-b“) and "closed" (4601 „>52-a“) are config- ured, •...
Page 140: Setting Notes
Functions 2.10 Breaker Failure Protection 50BF Figure 2-41 Logic diagram of the breaker failure protection 2.10.2 Setting Notes General Breaker failure protection is only effective and accessible if address 170 50BF is set to Enabled or enabled w/ 3I0>. Setting Enabled considers the three phase currents for total current monitoring. Setting enabled w/ 3I0>...
Page 141 Functions 2.10 Breaker Failure Protection 50BF Criteria Address 7004 Chk BRK CONTACT establishes whether or not the breaker auxiliary contacts connected via binary inputs are to be used as a criterion for pickup. If this address is set to ON, then current criterion and/or the auxiliary contact criterion apply.
Page 142: Settings
Functions 2.10 Breaker Failure Protection 50BF 2.10.3 Settings The table indicates region-specific default settings. Column C (configuration) indicates the corresponding sec- ondary nominal current of the current transformer. Addr. Parameter Setting Options Default Setting Comments 7001 FCT 50BF 50BF Breaker Failure Pro- tection 7004 Chk BRK CONTACT...
Page 143: Phase Sequence Reversal
Functions 2.11 Phase Sequence Reversal 2.11 Phase Sequence Reversal A phase rotation function via binary input and parameter is implemented in 7SC80 devices. Applications • Phase rotation ensures that all protective and monitoring functions operate correctly even with anti-clock- wise rotation, without the need for two phases to be reversed. 2.11.1 Description General...
Page 144: Setting Notes
Functions 2.11 Phase Sequence Reversal 2.11.2 Setting Notes Setting the Function Parameter The normal phase sequence is set at 209 (see Section 2.1.3). If, on the system side, phase rotation is reversed temporarily, then this is communicated to the protective device using the binary input „>Reverse Rot.“ (5145).
Page 145: Flexible Protection Functions
Functions 2.12 Flexible Protection Functions 2.12 Flexible Protection Functions The flexible protection function is applicable for a variety of protection principles. The user can create up to 20 flexible protection functions and configure them according to their function. Each function can be used either as an autonomous protection function, as an additional protective element of an existing protection function or as a universal logic, e.g.
Page 146 Functions 2.12 Flexible Protection Functions The maximum 20 configurable protection functions operate independently of each other. The following descrip- tion concerns one function; it can be applied accordingly to all other flexible functions. The logic diagram 2-44 illustrates the description. Functional Logic The function can be switched ON and OFF or, it can be set to Alarm Only.
Page 147 Functions 2.12 Flexible Protection Functions Function Logic Figure 2-44 shows the logic diagram of a three-phase function. If the function operates on one phase or without phase reference, phase selectivity and phase-specific indications are not relevant. Figure 2-44 Logic diagram of the flexible protection functions SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 148 Functions 2.12 Flexible Protection Functions The parameters can be set to monitor either exceeding or dropping below of the threshold. The configurable pickup time delay will be started once the threshold (>-Element) has been exceeded. When the time delay has elapsed and the threshold is still violated, the pickup of the phase (e.g.
Page 149: Setting Notes
Functions 2.12 Flexible Protection Functions 2.12.2 Setting Notes The setting of the functional scope determines the number of flexible protection functions to be used (see Chapter 2.1.1). If a flexible function in the functional scope is disabled (by removing the checkmark), this will result in losing all settings and configurations of this function or its settings will be reset to their default settings.
Page 150 Functions 2.12 Flexible Protection Functions Table 2-12 Parameter in the Settings Dialog "Measurement Procedure", Mode of Operation three-phase Mode of Measured Notes operation Variable Three-phase Current, Parameter Voltage MEAS. METHOD Setting Options Fundamental Harmonic Only the fundamental harmonic is evaluated, higher harmonics are suppressed.
Page 151 Functions 2.12 Flexible Protection Functions Note With regard to the phase-selective pickup messages, a special behavior is observed in the three-phase voltage protection with phase-to-phase variables, because the phase-selective pickup message "Flx01 Pickup Lx" is allocated to the respective measured-value channel "Lx". Single-phase faults: If, for example, voltage V drops to such degree that voltages V...
Page 152 Functions 2.12 Flexible Protection Functions The forward direction of power (P forward, Q reverse) is the direction of the line. Parameter (1108 P,Q sign) for sign inversion of the power display in the operating measured values is ignored by the flexible functions. In single-phase voltage protection, the configured voltage threshold is always interpreted as voltage at the ter- minal.
Page 153: Settings
Functions 2.12 Flexible Protection Functions Further Information The following instruction should be noted: • As the power factor does not differentiate between capacitive and inductive, the sign of the reactive power may be used with CFC-help as an additional criterion. 2.12.3 Settings Addresses which have an appended "A"...
Page 154 Functions 2.12 Flexible Protection Functions Addr. Parameter Setting Options Default Setting Comments POWER Ia Van Ia Van Power Ib Vbn Ic Vcn VOLTAGE SYSTEM Phase-Phase Phase-Phase Voltage System Phase-Ground P.U. THRESHOLD 0.05 .. 40.00 A 2.00 A Pickup Threshold 0.25 .. 200.00 A 10.00 A P.U.
Page 155: Information List
Functions 2.12 Flexible Protection Functions 2.12.4 Information List Information Type of In- Comments formation 235.2110 >BLOCK $00 >BLOCK Function $00 235.2111 >$00 instant. >Function $00 instantaneous TRIP 235.2112 >$00 Dir.TRIP >Function $00 Direct TRIP 235.2113 >$00 BLK.TDly >Function $00 BLOCK TRIP Time Delay 235.2114 >$00 BLK.TRIP >Function $00 BLOCK TRIP 235.2115 >$00 BL.TripA...
Page 156: Function Control
Functions 2.13 Function Control 2.13 Function Control The function logic coordinates the execution of protection and auxiliary functions, it processes the resulting de- cisions and information received from the system. This includes in particular: – Fault Detection / Pickup Logic –...
Page 157 Functions 2.13 Function Control usual – remains blocked as long as the trip signal is present, and that the trip coil current is interrupted by the auxiliary contact of the circuit breaker. Figure 2-45 Terminating the Trip Signal SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 158: Additional Functions
Functions 2.14 Additional Functions 2.14 Additional Functions The general functions of the device are described in the Additional Functions chapter. 2.14.1 Message Processing After the occurrence of a system fault, information regarding the response of the protective relay and the mea- sured values is important for a detailed analysis.
Page 159: Information Via Display Panel Or Pc
Functions 2.14 Additional Functions 2.14.1.2 Information via Display Panel or PC Events and conditions can be read at the display panel of the Web Monitor. A PC to which the information is then sent can be connected via the USB interface or port F of the device. The device is equipped with several event buffers for operational indications, circuit breaker statistics etc., which are protected against loss of the auxiliary voltage by a buffer battery.
Page 160: Information To A Substation Control Center
Functions 2.14 Additional Functions Spontaneous Messages The spontaneous messages displayed using DIGSI reflect the present status of incoming information. Each new incoming message appears immediately, i.e. the user does not have to wait for an update or initiate one. 2.14.1.3 Information to a Substation Control Center If the device has a serial system interface, stored information may additionally be transferred via this interface to a centralized control and storage device.
Page 161: Information List
Functions 2.14 Additional Functions 2.14.2.3 Information List Information Type of In- Comments formation #of TRIPs= Number of TRIPs= >BLOCK Op Count >BLOCK Op Counter 1020 Op.Hours= Counter of operating hours Σ Ia = 1021 Accumulation of interrupted current Ph A Σ...
Page 162: Display Of Measured Values
Functions 2.14 Additional Functions 2.14.3.1 Display of Measured Values Measured Second- Primary values sec. = 3 ·I N sec. (calculated) = measured N sec. value from the I input ph-n sec. A–B B–C ph-ph sec. ph sec.C–A P, Q, S (P and Q No secondary measured values phase-segregat- cos ϕ...
Page 163: Transmitting Measured Values
Functions 2.14 Additional Functions The ground current I is either measured directly or calculated from the conductor currents. Upon delivery, the power and operating values are set in such manner that power in line direction is positive. Active components in line direction and inductive reactive components in line direction are also positive. The same applies to the power factor cosϕ.
Page 164: Information List
Functions 2.14 Additional Functions 2.14.3.3 Information List Information Type of In- Comments formation Ia = Ib = Ic = In = I1 = I1 (positive sequence) I2 = I2 (negative sequence) Va = Vb = Vc = Va-b= Va-b Vb-c= Vb-c Vc-a= Vc-a...
Page 165: Average Measurements
Functions 2.14 Additional Functions 2.14.4 Average Measurements The long-term averages are calculated and output by the 7SC80. 2.14.4.1 Description Long-Term Averages The long-term averages of the three phase currents I , the positive sequence components I for the three phase currents, and the real power P, reactive power Q, and apparent power S are calculated within a set period of time and indicated in primary values.
Page 166: Settings
Functions 2.14 Additional Functions 2.14.4.3 Settings Addr. Parameter Setting Options Default Setting Comments 8301 DMD Interval 15 Min., 1 Sub 60 Min., 1 Sub Demand Calculation Intervals 15 Min., 3 Subs 15 Min.,15 Subs 30 Min., 1 Sub 60 Min., 1 Sub 60 Min.,10 Subs 5 Min., 5 Subs 8302...
Page 167: Min/Max Measurement Setup
Functions 2.14 Additional Functions 2.14.5 Min/Max Measurement Setup Minimum and maximum values are calculated by the 7SC80. Time and date of the last update of the values can also be read out. 2.14.5.1 Description Minimum and Maximum Values The minimum and maximum values for the three phase currents I , the three phase voltages V , the phase- to-phase voltages V...
Page 168: Information List
Functions 2.14 Additional Functions 2.14.5.4 Information List Information Type of In- Comments formation ResMinMax IntSP_Ev Reset Minimum and Maximum counter >I MinMax Reset >I MIN/MAX Buffer Reset >I1 MiMaReset >I1 MIN/MAX Buffer Reset >V MiMaReset >V MIN/MAX Buffer Reset >VphphMiMaRes >Vphph MIN/MAX Buffer Reset >V1 MiMa Reset >V1 MIN/MAX Buffer Reset...
Page 169 Functions 2.14 Additional Functions Information Type of In- Comments formation VabMin= Vab Min VabMax= Vab Max VbcMin= Vbc Min VbcMax= Vbc Max VcaMin= Vca Min VcaMax= Vca Max Vn Min = V neutral Min Vn Max = V neutral Max V1 Min = V1 (positive sequence) Voltage Minimum V1 Max =...
Page 170: Set Points For Measured Values
Functions 2.14 Additional Functions 2.14.6 Set Points for Measured Values SIPROTEC devices facilitate the setting of limit values for some measured and metered values. If any of these limit values is reached, exceeded or fallen below during operation, the device issues an alarm which is indicat- ed in the form of an operational message.
Page 171: Information List
Functions 2.14 Additional Functions 2.14.7.3 Information List Information Type of In- Comments formation OpHour> Operating hours greater than SP. Op Hours> Set Point Operating Hours 2.14.8 Energy Metering Count values for active and reactive energy are determined by the device. They can be output via the Web Monitor, read using DIGSI via the USB interface, or transmitted to a control center via port F.
Page 172: Information List
Functions 2.14 Additional Functions 2.14.8.4 Information List Information Type of In- Comments formation Meter res IntSP_Ev Reset meter Wp(puls) Pulsed Energy Wp (active) Wq(puls) Pulsed Energy Wq (reactive) WpΔ= Increment of active energy WqΔ= Increment of reactive energy WpForward MVMV Wp Forward WqForward MVMV...
Page 173: Description
Functions 2.14 Additional Functions 2.14.9.1 Description Influencing Information to the Control Center During Test Mode Some of the available protocols allow for identifying all messages and measured values transmitted to the control center with "test mode" as the message cause while the device is tested on site. This identification pre- vents the message from being incorrectly interpreted as resulting from an actual fault.
Page 174: Command Processing
Functions 2.15 Command Processing 2.15 Command Processing A control command function is integrated in the SIPROTEC 4 7SC80 device to coordinate the the switching operations in the substation. Control commands can originate from four command sources: • Operation using the Web Monitor •...
Page 175: Information List
Functions 2.15 Command Processing Operation Using an Interface Switchgear can also be controlled using a connection to the substation control system. For that, the required periphery must exist in the device and in the substation. Furthermore, certain settings for the interface need to be made in the device (see SIPROTEC 4 System Description).
Page 176: Command Sequence
Functions 2.15 Command Processing • Acknowledgment and resetting commands for setting and resetting internal buffers or data states. • Information status command to set/reset the additional information "information status" of a process object, such as: – Input blocking – Output blocking 2.15.3 Command Sequence Safety mechanisms in the command sequence ensure that a command can only be released after a thorough...
Page 177: Switchgear Interlocking
Functions 2.15 Command Processing Monitoring the Command Execution The following is monitored: • Interruption of a command because of a Cancel Command • Runtime Monitor (feedback message monitoring time) 2.15.4 Switchgear Interlocking System interlocking is executed by the user-defined logic (CFC). 2.15.4.1 Description Interlocking checks in a SICAM / SIPROTEC 4 system are normally divided in the following groups: •...
Page 178 Functions 2.15 Command Processing The "plus" appearing in the message is a confirmation of the command execution. The command execution was as expected, in other words positive. The minus sign means a negative confirmation, the command was rejected. Possible command feedbacks and their causes are dealt with in the SIPROTEC 4 System Descrip- tion.
Page 179 Functions 2.15 Command Processing Figure 2-47 Standard interlockings The following figure shows the configuration of the interlocking conditions using DIGSI. SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 180 Functions 2.15 Command Processing Figure 2-48 DIGSI dialog box 'Object properties' for setting the interlocking conditions With the Web Monitor, configured interlocking causes are output on the device display. They are marked by letters explained in the following table. Table 2-15 Command types and corresponding messages Interlocking Commands Abbrev.
Page 181 Functions 2.15 Command Processing Switching Authority The interlocking condition "Switching authority" serves for determining the switching authority. It enables the user to select the authorized command source. The following switching authority ranges are defined in the fol- lowing priority sequence: •...
Page 182 Functions 2.15 Command Processing Switching Mode The switching mode serves for activating or deactivating the configured interlocking conditions at the time of the switching operation. The following (local) switching modes are defined: • For local commands (CS = LOCAL) – interlocked (normal) or –...
Page 183 Functions 2.15 Command Processing Blocking by Protection The pickup of protective elements blocks switching operations. Protective elements are configured, separately for each switching component, to block specific switching commands sent in CLOSE and TRIP direction. When enabled, "Block CLOSE commands" blocks CLOSE commands, whereas "Block TRIP commands" blocks TRIP signals.
Page 184: Command Logging
Functions 2.15 Command Processing 2.15.5 Command Logging During the processing of the commands, independent of the further message routing and processing, command and process feedback information are sent to the message processing center. These messages contain information on the cause. With the corresponding allocation (configuration) these messages are entered in the event list, thus serving as a report.
Page 185: Device Operation
• Control and display panel Via the menu bar, you can select all logs and measured values displayed in the navigation tree. The menu item Options is used for diagnostic purposes and can be activated by Siemens experts only. SIPROTEC, 7SC80, Manual...
Page 186 Functions 2.16 Device Operation Control and Display Panel The control and display panel is structured into various function and display areas. • 32 LEDs to display operating states or indications • O and C key to activate/deactivate assigned operational equipment LOSE •...
Page 187 Functions 2.16 Device Operation Figure 2-49 Web Monitor – Device Control Displaying of Indications In the Web Monitor, the indications of the 7SC80 are displayed in different logs depending on their type and allocation. • Event Log (event list) • Trip Log (alarm list) •...
Page 188 Functions 2.16 Device Operation The following editing options are available for the displayed content of the selected log: • Saving via Save. The indications are saved in a text file from the selection time of a page on. The file name must have the ending .TXT. If you save another page of the list, this page is saved beginning at the selection time.
Page 189 Functions 2.16 Device Operation Figure 2-51 Web Monitor – Trip Log The Fault Records log indicates all pending fault records. With the V key, the fault record is opened with the SIGRA evaluation program. SIGRA must be installed on your system. This program is not included in the Web Monitor. SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 190 Functions 2.16 Device Operation Figure 2-52 Web Monitor – Fault Records SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 191 Functions 2.16 Device Operation Displaying Measured Values In the Web Monitor, the measured values and count values of the 7SC80 are displayed in various lists. • Primary values Measured values of the primary side • Secondary values Measured values of the secondary side •...
Page 192 Functions 2.16 Device Operation Figure 2-53 Web Monitor – Primary Values SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 193 Functions 2.16 Device Operation Figure 2-54 Web Monitor – Percent Values SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 194 Functions 2.16 Device Operation Figure 2-55 Web Monitor – Min-/Max-Values SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 195 Functions 2.16 Device Operation Figure 2-56 Web Monitor – Count Values SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 196 Functions 2.16 Device Operation Logging The following figures are examples of the displaying of an event log saved as text file and a measurement log. Figure 2-57 Event log text file example Figure 2-58 Measurement log example ■ SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 197: Mounting And Commissioning
Mounting and Commissioning This chapter is intended for experienced commissioning staff. The staff must be familiar with the commissioning of protection and control systems, with power systems management and with the relevant safety rules and guidelines. Under certain circumstances, it may become necessary to adapt parts of the power system hard- ware.
Page 198: Mounting And Connections
Mounting and Commissioning 3.1 Mounting and Connections Mounting and Connections General WARNING! Warning of improper transport, storage, installation or assembly of the device. Failure to observe these precautions can result in death, personal injury, or serious material damage. Trouble-free and safe use of this device depends on proper transport, storage, installation, and assembly of the device according to the warnings in this device manual.
Page 199 Mounting and Commissioning 3.1 Mounting and Connections Setting Group Change If binary inputs are used to switch setting groups, please observe the following: • Two binary inputs must be dedicated to the purpose of changing setting groups when four groups are to be switched.
Page 200: Hardware Modifications
Mounting and Commissioning 3.1 Mounting and Connections 3.1.2 Hardware Modifications 3.1.2.1 Disassembly Replacing the Buffer Battery The battery is located in a battery compartment which is accessible from outside. The battery compartment can be found on the side of the device. When replacing the battery, it is not necessary to open the device. In the case of a failure of the auxiliary voltage, the battery ensures operation of the internal clock and storage of all process data for at least half a year.
Page 201 Any service activities exceeding the installation or exchange of com- munication modules must only be carried out by Siemens personnel. For preparing the workplace, a pad suitable for electrostatic sensitive devices (ESD) is required.
Page 202 Mounting and Commissioning 3.1 Mounting and Connections Note Withdraw the battery compartment from the device before disassembly. When removing the battery compart- ment, the device buffer and the fault records are deleted. You may want to save the device buffer and fault records first.
Page 203 Make sure that the defective fuse has not left any obvious damage on the device. If the fuse trips again after reconnection of the device, refrain from any further repairs and send the device to Siemens for repair. The device can now be reassembled again (see Section Reassembly).
Page 204: Current Terminal Connections
Mounting and Commissioning 3.1 Mounting and Connections 3.1.2.2 Current Terminal Connections Stop Elements and Cable Cross-Sections Figure 3-5 8-pin current terminal Ring and fork-type lugs can be used for the connection. For complying with the required insulation clearances, insulated lugs have to be used. Otherwise, the crimp zone has to be insulated with corresponding means (e.g. by pulling a shrink-on sleeve over).
Page 205: Process Terminal Connections
Mounting and Commissioning 3.1 Mounting and Connections Note In the connection diagrams in the Appendix, terminal connection "1" of the current terminal corresponds to pin number "72". Further information with regard to the current terminals can be found in the SIPROTEC 4 System Description, Order No.
Page 206: Interface Modules
3.1 Mounting and Connections Solid conductors as well as stranded conductors with or without conductor sleeves can be used as single cables. Siemens recommends using twin cable end sleeves when connecting two single cables. Cable cross-sections: AWG 26-12 (0.2 mm to 2.5 mm...
Page 207: Reassembly
Mounting and Commissioning 3.1 Mounting and Connections 3.1.2.5 Reassembly For assembly, perform the steps of the disassembly section in reverse order. Install the device in the substation again. Slide the battery compartment back into the device. Please observe the following: Note Insert the current and voltage terminal blocks again and lock them in place! Additionally fix the process terminals with the fixing elements or screws.
Page 208: Installation
Mounting and Commissioning 3.1 Mounting and Connections 3.1.3 Installation 3.1.3.1 General To install the 7SC80 device in a rack or cabinet, the two mounting brackets included in the delivery are required. Figure 3-9 Device view SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 209 Mounting and Commissioning 3.1 Mounting and Connections Housing Assembly • Fix the device to the mounting brackets with 4 screws. • Loosely screw the two mounting brackets into the rack or cabinet with 4 screws each. • Tighten the 8 screws of the mounting brackets in the rack or cabinet. •...
Page 210: Checking Connections
Mounting and Commissioning 3.2 Checking Connections Checking Connections 3.2.1 Checking the Data Connections of the Interfaces Pin Assignment The following tables show the pin assignment of the various interfaces. The position of the connections can be seen in the following figures. Figure 3-10 9-pin D-sub socket (HMI) Figure 3-11...
Page 211 Mounting and Commissioning 3.2 Checking Connections Figure 3-13 Ethernet EN100 O SM 24 km Figure 3-14 SMB socket (SubMiniature B) for connecting a GPS antenna In a later version, the operator panel will be connected via the 9-pin DSUB socket. Table 3-2 Socket Assignment Pin No.
Page 212 Mounting and Commissioning 3.2 Checking Connections Ethernet Connections at RJ45 If the interface is used for communication with the device, the data connection is to be checked. Table 3-4 Socket Assignment Pin No. Ethernet interface — — — — GPS Interface Via the SMB socket, an active GPS antenna (5 V max.
Page 213: Checking The System Connections
Mounting and Commissioning 3.2 Checking Connections Checking the Time Synchronization Interface When connecting the time signal transmitter (GPS), the specified technical data must be observed (see Chapter 4 Technical Data, „Time Synchronization Interface“). The GPS module supplies UTC time, irrespective of time zone and switchover to/from daylight-saving time.
Page 214 Mounting and Commissioning 3.2 Checking Connections Caution! Take care when operating the device without a battery on a battery charger. Non-observance of the following measures can lead to unusually high voltages and consequently, the destruc- tion of the device. Do not operate the device on a battery charger without a connected battery. (For limit values see also Technical Data, Section 4.1).
Page 215: Battery Charging Function
Mounting and Commissioning 3.2 Checking Connections • Open the protective switches for the voltage transformers and the power supply. • Check the trip and close circuits to the power system circuit breakers. • Verify that the control wiring to and from other devices is correct. •...
Page 216: Commissioning
Mounting and Commissioning 3.3 Commissioning Commissioning WARNING! Warning of dangerous voltages when operating an electrical device Non-observance of the following measures can result in death, personal injury or substantial property damage. Only qualified people shall work on and around this device. They must be thoroughly familiar with all warnings and safety notices in this instruction manual as well as with the applicable safety steps, safety regulations, and precautionary measures.
Page 217: Test Mode And Transmission Block
Mounting and Commissioning 3.3 Commissioning 3.3.1 Test Mode and Transmission Block Activation and Deactivation If the device is connected to a central or main computer system via the SCADA interface, then the information that is transmitted can be influenced. This is only possible with some of the protocols available (see Table „Pro- tocol-dependent functions“...
Page 218 Mounting and Commissioning 3.3 Commissioning Figure 3-15 System interface test with the dialog box: Creating messages - example Changing the Operating State When clicking one of the buttons in the column Action for the first time, you will be prompted for the password no.
Page 219: Communication Module Configuration
Mounting and Commissioning 3.3 Commissioning 3.3.3 Communication Module Configuration Required Settings in DIGSI 4 The following applies in general: In the case of a first-time installation or replacement of a communication module, the ordering number (MLFB) does not need to be changed. The ordering number can be retained. Thus, all previously created parameter sets remain valid for the device.
Page 220: Checking The Status Of Binary Inputs And Outputs
Mounting and Commissioning 3.3 Commissioning 3.3.4 Checking the Status of Binary Inputs and Outputs Prefacing Remarks The binary inputs, outputs, and LEDs of a SIPROTEC 4 device can be individually and precisely controlled in DIGSI. This feature is used to verify control wiring from the device to plant equipment (operational checks) during commissioning.
Page 221 Mounting and Commissioning 3.3 Commissioning Figure 3-17 Test of the binary inputs/outputs — example Changing the Operating State To change the status of a hardware component, click on the associated button in the Scheduled column. Password No. 6 (if activated during configuration) will be requested before the first hardware modification is allowed.
Page 222: Tests For Breaker Failure Protection
Mounting and Commissioning 3.3 Commissioning Test of the Binary Inputs To test the wiring between the plant and the binary inputs of the 7SC80 the condition in the plant which initiates the binary input must be generated and the response of the device checked. To do so, the dialog box Hardware Test must be opened again to view the physical state of the binary inputs.
Page 223 Mounting and Commissioning 3.3 Commissioning Caution! Also for tests on the local circuit breaker of the feeder a trip command to the surrounding circuit breakers can be issued for the busbar. Non–observance of the following measure can result in minor personal injury or property damage. Therefore, primarily it is recommended to interrupt the tripping commands to the adjacent (busbar) breakers, e.g.
Page 224: Testing User-Defined Functions
Mounting and Commissioning 3.3 Commissioning In particular with multiple busbars, the trip distribution logic for the adjacent circuit breakers must be checked. Here it should be checked for every busbar section that all circuit breakers which are connected to the same busbar section as the feeder circuit breaker under observation are tripped, and no other breakers.
Page 225: Testing The Reverse Interlocking Scheme
Mounting and Commissioning 3.3 Commissioning Phase Rotation The phase rotation must correspond to the configured phase rotation, in general a clockwise phase rotation. If the system has an anti-clockwise phase rotation, this must have been considered when the power system data was set (address 209 PHASE SEQ.).
Page 226: Direction Check With Load Current
Mounting and Commissioning 3.3 Commissioning 3.3.9 Direction Check with Load Current Preliminary Remark Note The direction check is only relevant for devices with voltage transformers. ≥ 10 % of Load Current The correct connection of the current and voltage transformers is tested via the protected line using the load current.
Page 227: Polarity Check For Current Input I N
Mounting and Commissioning 3.3 Commissioning (or object to be protected). This is not necessarily identical with the direction of the normal the power flow. For all three phases, the directional messages to the power flow must be reported properly. If all directions differ from each other, individual phases in current or voltage transformer connections are inter- changed, not connected properly or phase assignment is incorrect.
Page 228 Mounting and Commissioning 3.3 Commissioning Directional ground fault protection must be configured as enabled and activated (address 116). Its pickup threshold must be below the load current of the line; if necessary, the pickup threshold must be reduced. The parameters that have been changed must be noted. After switching the line on and off again, the direction indication must be checked: In the fault log the messages „67N picked up“...
Page 229: Switching Test For Configured Equipment
Mounting and Commissioning 3.3 Commissioning Figure 3-20 Polarity testing for I , example with current transformers configured in a Holmgreen-connection (VTs Wye-connected) 3.3.11 Switching Test for Configured Equipment Switching via Command Input If the configured equipment was not switched sufficiently in the hardware test already described, configured equipment must be switched on and off from the device via the integrated control element.
Page 230: Creating A Test Fault Record
Mounting and Commissioning 3.3 Commissioning 3.3.12 Creating A Test Fault Record In order to test the stability of the protection during switch-on procedures also, switch-on trials can also be carried out at the end. Oscillographic records obtain the maximum information about the behaviour of the pro- tection.
Page 231: Final Preparation Of The Device
Mounting and Commissioning 3.4 Final Preparation of the Device Final Preparation of the Device The used terminal screws must be tightened, including all screws that are not used. All plug connectors must be inserted correctly. Caution! Do not use force! The permissible tightening torques must not be exceeded as otherwise the threads and terminal chambers may be damaged! The setting values should be checked again if they were changed during the tests.
Page 232 Mounting and Commissioning 3.4 Final Preparation of the Device SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 233: Technical Data
Technical Data This chapter provides the technical data of the device SIPROTEC 7SC80 and its individual functions, including the limit values that may not be exceeded under any circumstances. The electrical and functional data for the maximum functional scope are followed by the mechanical specifications with dimensioned drawings. General Device Data Definite-time overcurrent protection 50, 50N Directional Overcurrent Protection 67, 67N...
Page 234: General Device Data
Technical Data 4.1 General Device Data General Device Data 4.1.1 Analog Inputs Current Inputs Nominal frequency 50 Hz or 60 Hz (adjustable) Frequency operating range (independent of the 25 Hz to 70 Hz nominal frequency) Nominal current 1 A or 5 A Consumption per phase and ground path ≤...
Page 235: Binary Inputs And Outputs
Technical Data 4.1 General Device Data Alternating Voltage Power supply via integrated converter Rated auxiliary alternating voltage V AC 115 V AC 230 V Permissible voltage ranges AC 92 V to 132 V AC 184 V to 265 V Overvoltage category, IEC 60255-27 Power consumption (for AC 115 V/230 V) <...
Page 236: Communication Interfaces
Technical Data 4.1 General Device Data 4.1.4 Communication Interfaces User Interface Connection At the front, non-isolated, USB type B socket for connecting a personal computer operation for DIGSI V4.82 and higher via USB 2.0 full speed Operation with DIGSI Transmission speed up to 12 Mbit/s max.
Page 237: Electrical Tests
Technical Data 4.1 General Device Data 4.1.5 Electrical Tests Regulations Standards: see also individual tests Protection devices Bay units IEC 60255 IEC 60870 EN 60255/EN 50263 EN 60870 DIN 57435/DIN EN 50263 DIN EN 60870 IEC TS 61000-6-5 IEC TS 61000-6-5 IEC/EN 61000-4 IEC/EN 61000-4 IEC 60694...
Page 238 Technical Data 4.1 General Device Data EMC Tests for Immunity (Type Tests) Standards: IEC 60255-6 and -22, (product standards) IEC/EN 61000-6-2 VDE 0435 For additional standards, see the individual tests 2.5 kV (peak); 1 MHz; τ = 15 µs; 400 surges 1 MHz test, class III IEC 60255-22-1, IEC 61000-4-18, = 200 Ω...
Page 239: Mechanical Tests
Technical Data 4.1 General Device Data 4.1.6 Mechanical Tests Vibration and Shock Stress during Steady-State Operation Standards: IEC 60255-21 IEC 60870 IEC 60068 IEC 60721 Vibration sinusoidal 10 Hz to 60 Hz: ± 0.075 mm amplitude; 60 Hz to 150 Hz: 1 g acceleration IEC 60255-21-1, class 1;...
Page 240: Climatic Stress Tests
30 days of the year up to 95 % relative humidity; condensation must be avoided! Siemens recommends installing the devices in a place where they are not exposed to direct sunlight or great temperature variations that could lead to condensation.
Page 241: Constructive Design
Technical Data 4.1 General Device Data 4.1.9 Constructive Design Dimensions See dimensional drawings, Section 4.16 Device Housing Weight 7SC80 For panel flush mounting and panel surface mounting 4.5 kg Degree of protection in acc. with IEC 60529 For equipment in surface-mounting housing or flush- IP 40 mounting housing For operator protection...
Page 242: Definite-Time Overcurrent Protection 50, 50N
Technical Data 4.2 Definite-time overcurrent protection 50, 50N Definite-time overcurrent protection 50, 50N Operating Modes Three-phase Standard Two-phase Phases A and C Method of Measurement All elements Fundamental wave, true RMS value 50-3, 50N-3 Additional instantaneous values Setting Ranges/Increments 0.10 A to 35.00 A or ∞ (disabled) Current pickup 50-1, 50-2 (phases) for I Increments...
Page 243 Technical Data 4.2 Definite-time overcurrent protection 50, 50N Dropout Ratio Dropout ratio for ≥ 0.3 - fundamental component, RMS value approx. 0.95 for I/I ≥ 0.3 - instantaneous value approx. 0.90 for I/I Tolerances Current pickup 3 % of setting value or 15 mA at I = 1 A or 75 mA at I = 5 A...
Page 244: Directional Overcurrent Protection 67, 67N
Technical Data 4.3 Directional Overcurrent Protection 67, 67N Directional Overcurrent Protection 67, 67N Overcurrent Elements The same specifications apply as for non-directional overcurrent protection of the elements 50-1, 50-2, 50N-1 and 50N-2 (see previous sections). Determination of Direction Moreover, the following data apply for determining the fault direction: For Phase Faults Type with cross-polarized voltages;...
Page 245 Technical Data 4.3 Directional Overcurrent Protection 67, 67N Times Pickup times (without inrush restraint, with inrush restraint + 1 cycle) 67-1, 67-2, 67N-1, 67N-2 - for setting value x 2 approx. 45 ms - for setting value x 10 approx. 40 ms Dropout times 67-1, 67-2, 67N-1, 67N-2 approx.
Page 246: Inrush Restraint
Technical Data 4.4 Inrush Restraint Inrush Restraint Influenceable Functions Overcurrent elements 50-1, 50N-1, 67-1, 67N-1 Setting Ranges/Increments Restraining factor I 10 % to 45 % Increments 1 % Function Limits Lower function limit for I = 1 A at least one phase current (50 Hz and 100 Hz) ≥...
Page 247: Voltage Protection 27, 59
Technical Data 4.5 Voltage Protection 27, 59 Voltage Protection 27, 59 Setting Ranges/Increments Undervoltages 27-1, 27-2 phase-specific phase x 27-1, phase x 27-2 Measured quantity used - Positive-sequence system of voltages with three-phase connection - Smallest phase-to-phase voltage - Smallest phase-to-ground voltage Connection of phase-to-ground voltages: - Evaluation of phase-to-ground voltages 10 V to 200 V...
Page 248 Technical Data 4.5 Voltage Protection 27, 59 Times Pickup times - Undervoltage 27-1, 27-2, 27-1 V , 27-2 V approx. 50 ms - Overvoltage 59-1, 59-2 approx. 50 ms - Overvoltage 59-1 V , 59-2 V , 59-1 V , 59-2 V approx.
Page 249: Voltage Protection For Vx
Technical Data 4.6 Voltage Protection for Vx Voltage Protection for Vx Setting Ranges/Increments Undervoltages 27-1, 27-2 Measured quantity used Connected single-phase phase-to-ground voltage Connection: single-phase 10 V to 200 V Increments 1 V Dropout ratio r for 27-1, 27-2 1.01 to 3.00 Increments 0.01 Dropout threshold for (r ·...
Page 250: Negative Sequence Protection 46-1, 46-2 (Definite Time Characteristic)
Technical Data 4.7 Negative Sequence Protection 46-1, 46-2 (Definite Time Characteristic) Negative Sequence Protection 46-1, 46-2 (Definite Time Characteristic) Setting Ranges/Increments = 1 A 0.10 A to 3.00 A or ∞ (disabled) Unbalanced load elements 46-1, for I Increments 46-2 0.01 A = 5 A 0.50 A to 15.00 A or ∞...
Page 251: Negative Sequence Protection 46-Toc (Inverse Time Characteristic)
Technical Data 4.8 Negative Sequence Protection 46-TOC (Inverse Time Characteristic) Negative Sequence Protection 46-TOC (Inverse Time Characteristic) Setting Ranges/Increments Pickup value 46-TOC PICKUP for I = 1 A 0.10 A to 2.00 A Increments 0.01 A for I = 5 A 0.50 A to 10.00 A 0.05 s to 3.20 s or ∞...
Page 252 Technical Data 4.8 Negative Sequence Protection 46-TOC (Inverse Time Characteristic) Trip Time Curves acc. to ANSI It can be selected one of the represented trip time characteristic curves in the figures 4-2 and 4-3 each on the right side of the figure. ≥...
Page 253 Technical Data 4.8 Negative Sequence Protection 46-TOC (Inverse Time Characteristic) Dropout Value IEC and ANSI (without Disk Emulation) Approx. 1.05 · I setting value, which is approx. 0.95 · pickup threshold I ANSI with Disk Emulation Approx. 0.90 · I setting value Tolerances Dropout value 46-TOC Drop-Out...
Page 254 Technical Data 4.8 Negative Sequence Protection 46-TOC (Inverse Time Characteristic) Figure 4-1 Trip time characteristics of the inverse time negative sequence element 46-TOC, acc. to IEC SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 255 Technical Data 4.8 Negative Sequence Protection 46-TOC (Inverse Time Characteristic) Figure 4-2 Dropout time and trip time characteristics of the inverse time unbalanced load stage, acc. to ANSI SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 256 Technical Data 4.8 Negative Sequence Protection 46-TOC (Inverse Time Characteristic) Figure 4-3 Dropout time and trip time characteristics of the inverse time unbalanced load stage, acc. to ANSI SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 257: Frequency Protection 81
Technical Data 4.9 Frequency Protection 81 Frequency Protection 81 Setting Ranges/Increments Number of frequency elements 4; each can be set to f> or f< Pickup values f> or f< 40.00 Hz to 60.00 Hz Increments 0.01 Hz for f = 50 Hz Pickup values f>...
Page 258: Fault Locator
Technical Data 4.10 Fault Locator 4.10 Fault Locator in Ω primary and secondary Output of the fault distance in km or miles of line length or in % of the line length Trigger with tripping, with dropout or from an external source via binary input = 1 A 0.0050 to 9.5000 Ω/km Reactance per unit length setting for I...
Page 259: Breaker Failure Protection 50Bf
Technical Data 4.11 Breaker Failure Protection 50BF 4.11 Breaker Failure Protection 50BF Setting Ranges/Increments Pickup threshold 50BF Pickup for I = 1 A 0.05 A to 20.00 A Increments 0.01 A for I = 5 A 0.25 A to 100.00 A Pickup threshold 50NBF Pickup for I = 1 A 0.05 A to 20.00 A...
Page 260: Flexible Protection Functions
Technical Data 4.12 Flexible Protection Functions 4.12 Flexible Protection Functions Measured Values/Modes of Operation Three-phase I, 3I , I1, I2, I2/I1, V, 3V , V1, V2, P forward, P reverse, Q forward, Q reverse, cosϕ Single-phase , V, V , P forward, P reverse, Q for- I, I ward, Q reverse, cosϕ...
Page 261 Technical Data 4.12 Flexible Protection Functions Times Pickup times: Current, voltage (phase quantities) 2 times pickup value approx. 30 ms 10 times pickup value approx. 20 ms Current, voltage (symmetrical components) 2 times pickup value approx. 40 ms 10 times pickup value approx.
Page 262 Technical Data 4.12 Flexible Protection Functions Influencing Variables for Pickup Values Auxiliary direct voltage in the range of 0.8 ≤ V ≤ 1.15 1 % PSNom Temperature in the range of 0.5 %/10 K 23.00 °F (-5 °C) ≤ Θ ≤...
Page 263: User-Defined Functions (Cfc)
Technical Data 4.13 User-defined Functions (CFC) 4.13 User-defined Functions (CFC) Function Blocks and Their Possible Assignments to Task Levels Function block Explanation Task level PLC1_ PLC_ SFS_ BEARB BEARB BEARB BEARB ABSVALUE Magnitude Calculation — — — Addition ALARM Alarm AND - Gate BLINK Blink block...
Page 264 Technical Data 4.13 User-defined Functions (CFC) Function block Explanation Task level PLC1_ PLC_ SFS_ BEARB BEARB BEARB BEARB LOWER_SETPOINT Lower Limit — — — Multiplication MV_GET_STATUS Decode status of a value MV_SET_STATUS Set status of a value NAND NAND - Gate Negator NOR - Gate OR - Gate...
Page 265 Technical Data 4.13 User-defined Functions (CFC) Device-Specific CFC Blocks Table 4-1 ASWITCH – This block is used to switch between two REAL inputs (RMS values). Name Type Description Default function Input SWITCH BOOL Analog value selection FALSE REAL Analog value REAL Analog value Output...
Page 266 Technical Data 4.13 User-defined Functions (CFC) Additional Limits Additional limits for the following CFC blocks: Task Level Maximum Number of Modules in the Task Levels 2) 3) 2) 3) TIMER TIMER_SHORT MW_BEARB — — PLC1_BEARB PLC_BEARB SFS_BEARB — — When the limit is exceeded, an error message is iisued by the device. Consequently, the device starts mon- itoring.
Page 267 Technical Data 4.13 User-defined Functions (CFC) Processing Times in TICKS for the Individual Elements Individual element Number of TICKS Block, basic requirement Each input more than 3 inputs for generic modules Combination with input signal border Combination with output signal border Additionally for each chart Arithmetic ABS_VALUE...
Page 268 Technical Data 4.13 User-defined Functions (CFC) Individual element Number of TICKS Type converter BOOL_TO_DI BUILD_DI DI_TO_BOOL DM_DECODE DINT_TO_REAL DIST_DECODE UINT_TO_REAL REAL_TO_DINT REAL_TO_UINT Comparison COMPARE LOWER_SETPOINT UPPER_SETPOINT LIVE_ZERO ZERO_POINT Integrated total COUNTER Time and clock pulse TIMER TIMER_LONG TIMER_SHORT ALARM BLINK Routable in Matrix In addition to the defined preassignments, indications and measured values can be freely routed to buffers, preconfigurations can be removed.
Page 269: Additional Functions
Technical Data 4.14 Additional Functions 4.14 Additional Functions Operational Measured Values Currents in A (kA) primary and in A secondary or in % I Positive sequence component I Negative sequence component I or 3I0 Range 10 % to 150 % I Tolerance 1.5 % of measured value or 1 % I and from 151 % to 200 % I...
Page 270 Technical Data 4.14 Additional Functions Long-Term Mean Values Time Window 5, 15, 30 or 60 minutes Frequency of Updates adjustable Long-Term Averages of Currents in A (kA) Admd Bdmd Cdmd 1dmd of Real Power in W (kW, MW) of Reactive Power in VAr (kVAr, MVAr) of Apparent Power in VAr (kVAr, MVAr)
Page 271 Technical Data 4.14 Additional Functions Fault Logging Recording of indications of the last 8 power system faults Recording of indications of the last 3 ground faults Time Allocation Resolution for operational indications 1 ms Resolution for fault indications 1 ms Maximum time deviation (internal clock) 0,01 % Buffer battery...
Page 272 Technical Data 4.14 Additional Functions Clock Time synchronization Binary input Communication Operating modes of the clock management Operating mode Comments Internal Internal synchronization via RTC (default) Pulse via binary input External synchronization with pulse via binary input NTP (IEC 61850) External synchronization via port F (IEC 61850) External synchronization via GPS Setting Group Change Option of the Functional Settings...
Page 273: Switching Device Control
Technical Data 4.15 Switching Device Control 4.15 Switching Device Control Number of switching devices Depends on the number of binary inputs and outputs available Interlocking Freely programmable interlocking Messages Feedback messages, closed, open, intermediate position Control commands Single command/double command Switching command to circuit breaker 1-pole, 1½-pole and 2-pole Programmable Logic Controller...
Page 274: Dimensions
Technical Data 4.16 Dimensions 4.16 Dimensions 4.16.1 Feeder Automation Controller 7SC80 Figure 4-4 Dimensional drawing Feeder Automation Controller 7SC80 ■ SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 275: Appendix
Appendix This appendix is primarily a reference for the experienced user. This section provides ordering information for the models of this device. Connection diagrams indicating the terminal connections of the models of this device are included. Following the general diagrams are diagrams that show the proper connections of the devices to primary equipment in many typical power system configurations.
Page 276: Ordering Information And Accessories
Appendix A.1 Ordering Information and Accessories Ordering Information and Accessories A.1.1 Ordering Information A.1.1.1 7SC80 V4.6 Differential protec- 10 11 12 13 14 15 16 Suffix tion – – Basic functions, BO/BI Pos. 6 Housing 12 BI, 8 BO, 1 life status contact, 1 x 120 V input for line detection Current and voltage inputs, default settings (BOLD) Pos.
Page 277 Appendix A.1 Ordering Information and Accessories Protection functions Pos. 15 Designation ANSI No. Description Basic function (included in all ver- Overcurrent protection phase 50-1, 50-2, 50-3 sions) Overcurrent protection ground 50N-1, 50N-2, 50N-3 50BF Breaker failure protection Negative sequence overcurrent protection 81 U/O Flexible protection functions (parameters from current): Underfrequency / overfrequency, f<, f>...
Page 278: Accessories
Appendix A.1 Ordering Information and Accessories A.1.2 Accessories Replacement modules for interfaces GPS module W73089-U7 EN100 module electrical, 2 x RJ45, IEC 61850 C53207-A351-D675-2 Terminals Current terminal (set of 10 pieces) C53207-A406-D237-1 Process terminal 16-pin, type 360° (set of 18 pieces for cabinet surface mounting) C53207-A406-D238-1 Process terminal 16-pin, type 180°...
Page 279: Terminal Assignments
Appendix A.2 Terminal Assignments Terminal Assignments A.2.1 7SC80 — Housing for cabinet flush mounting and cabinet surface mounting 7SC8022* Figure A-1 Connection diagram 7SC8022* In the 24 V/48 V device variant, the power connections 41 BAT IN- and 34 AUX- are connected inside the device.
Page 280 Appendix A.2 Terminal Assignments 7SC8024* Figure A-2 Connection diagram 7SC8024* In the 24 V/48 V device variant, the power connections 41 BAT IN- and 34 AUX- are connected inside the device. SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 281: Connection Examples
Appendix A.3 Connection Examples Connection Examples Figure A-3 Current transformer connections to three current transformers and neutral point current (ground current) (Holmgreen connection) – appropriate for all networks Figure A-4 Current transformer connections to two current transformers – only for isolated or resonant- grounded networks SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 282 Appendix A.3 Connection Examples Figure A-5 Current transformer connections to three current transformers, ground current from an addi- tional summation current transformer – preferably for effectively or low-resistance grounded networks Important: Grounding of the cable shield must be effected at the cable side Note: The switchover of the current polarity (address 201) also reverses the polarity of the current input IN! Figure A-6...
Page 283 Appendix A.3 Connection Examples Figure A-7 Connection example for the external battery SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 284: Current Transformer Requirements
Appendix A.4 Current Transformer Requirements Current Transformer Requirements The requirements for phase current transformers are usually determined by the overcurrent time protection, particularly by the high-current element settings. Besides, there is a minimum requirement based on experi- ence. The recommendations are given according to the standard IEC 60044-1. The standards IEC 60044-6, BS 3938 and ANSI/IEEE C 57.13 are referred to for converting the requirement into the knee-point voltage and other transformer classes.
Page 285: Class Conversion
Appendix A.4 Current Transformer Requirements A.4.2 Class conversion Table A-1 Conversion into other classes British Standard BS 3938 ANSI/IEEE C 57.13, class C = 5 A (typical value) sNom IEC 60044-6 (transient response), class TPS K≈ 1 ≈ K Calculation See ChapterA.4.1 Accuracy limiting factors with: Classes TPX, TPY, TPZ ≈...
Page 286: Default Settings
Appendix A.5 Default Settings Default Settings When the device leaves the factory, many LED indications, binary inputs, binary outputs and function keys are already preset. They are summarized in the following table. A.5.1 LEDs Table A-2 LED display, e.g. via the Web-Monitor LEDs Default function Function No.
Page 287: Binary Input
Appendix A.5 Default Settings A.5.2 Binary Input Table A-3 Binary input presettings for all devices and ordering variants Binary Input Default function Function No. Description >BLOCK 50-2 1721 >BLOCK 50-2 >BLOCK 50N-2 1724 >BLOCK 50N-2 >52-b 4602 >52-b contact (OPEN, if bkr is closed) 52Breaker 52 Breaker >52-a...
Page 288: Function Keys
Appendix A.5 Default Settings A.5.4 Function Keys Table A-5 The called functions are executed directly, e.g. via the Web-Monitor, without any feedbacks (one-push-button). Function Keys Default function Function No. Description Display of the operational indications Display of the primary operational measured values not pre-assigned not pre-assigned not pre-assigned...
Page 289: Default Display
Appendix A.5 Default Settings A.5.5 Default Display A number of pre-defined measured value pages are available depending on the device type. The start page of the default display appearing after startup of the device can be selected in the device data via parameter 640 Start image DD.
Page 290 Appendix A.5 Default Settings Figure A-9 Default display of 7SC80 for models without V Spontaneous Fault Display After a fault has occurred, the most important fault data are automatically displayed after general device pickup in the order shown in the picture below. Figure A-10 Representation of spontaneous messages on the device display SIPROTEC, 7SC80, Manual...
Page 291: Protocol-Dependent Functions
Appendix A.6 Protocol-dependent Functions Protocol-dependent Functions Protocol → IEC 61850 Ethernet Function ↓ Operational measured values Count values Fault recording Remote protection setting User-defined indications and switching objects Time synchronization Indications with time stamp Commissioning aids Data transmission stop Creation of test messages Transmission mode Cyclic / event Baud rate...
Page 292: Functional Scope
Appendix A.7 Functional Scope Functional Scope Addr. Parameter Setting Options Default Setting Comments Grp Chge OPTION Disabled Disabled Setting Group Change Option Enabled OSC. FAULT REC. Disabled Enabled Oscillographic Fault Records Enabled Charac. Phase Disabled Definite Time 50/51 Definite Time Charac.
Page 293 Appendix A.7 Functional Scope Addr. Parameter Setting Options Default Setting Comments 27/59 Vx Enabled Disabled 27/59 Over/under volt. Prot. for Vx Disabled FLEXIBLE FUNC. 1...20 Flex. Function 01 Please select Flexible Functions Flex. Function 02 Flex. Function 03 Flex. Function 04 Flex.
Page 294: Settings
Appendix A.8 Settings Settings Addresses which have an appended "A" can only be changed with DIGSI, under "Display Additional Settings". The table indicates region-specific default settings. Column C (configuration) indicates the corresponding sec- ondary nominal current of the current transformer. Addr.
Page 295 Appendix A.8 Settings Addr. Parameter Function Setting Options Default Setting Comments P.U. THRESHOLD 15 .. 100 % 20 % Pickup Threshold P.U. THRESHOLD 2.0 .. 260.0 V 110.0 V Pickup Threshold T TRIP DELAY 0.00 .. 3600.00 sec 1.00 sec Trip Time Delay T PICKUP DELAY 0.00 ..
Page 296 Appendix A.8 Settings Addr. Parameter Function Setting Options Default Setting Comments Min.T.charge Device, General -50 .. 0 °C -23 °C Min. allowed charging tempera- ture °C Max.T.charge Device, General 0 .. 80 °C 48 °C Max. allowed charging tempera- ture °C Min.T.discharge Device, General -50 ..
Page 297 Appendix A.8 Settings Addr. Parameter Function Setting Options Default Setting Comments 614A OP. QUANTITY 59 P.System Data 1 Vphph Vphph Opera. Quantity for 59 Overvolt. Vphph selective Prot. Vph-n Vph-n selective 615A OP. QUANTITY 27 P.System Data 1 Opera. Quantity for 27 Undervolt. Vphph Prot.
Page 298 Appendix A.8 Settings Addr. Parameter Function Setting Options Default Setting Comments 0.05 .. 35.00 A; ∞ 1302 50N-2 PICKUP 50/51 Overcur. 0.50 A 50N-2 Pickup 0.25 .. 175.00 A; ∞ 2.50 A 0.00 .. 60.00 sec; ∞ 1303 50N-2 DELAY 50/51 Overcur.
Page 299 Appendix A.8 Settings Addr. Parameter Function Setting Options Default Setting Comments 1617 67N POLARIZAT. 67 Direct. O/C with VN and IN with VN and IN Ground Polarization with V2 and I2 1618A 67N T DROP-OUT 67 Direct. O/C 0.00 .. 60.00 sec 0.00 sec 67N Drop-Out Time Delay 1619A...
Page 300 Appendix A.8 Settings Addr. Parameter Function Setting Options Default Setting Comments 5035 59-1 PhC Pickup 27/59 O/U Volt. 20 .. 240 V 110 V 59-1 Phase C Pickup 5036 59-2 PhA Pickup 27/59 O/U Volt. 20 .. 415 V 120 V 59-2 Phase A Pickup 5037 59-2 PhA Pickup...
Page 301 Appendix A.8 Settings Addr. Parameter Function Setting Options Default Setting Comments 5402 Vmin 81 O/U Freq. 10 .. 150 V 65 V Minimum required voltage for op- eration 5402 Vmin 81 O/U Freq. 20 .. 150 V 35 V Minimum required voltage for op- eration 5403 81-1 PICKUP...
Page 302 Appendix A.8 Settings Addr. Parameter Function Setting Options Default Setting Comments 0.0050 .. 9.5000 Ω/km 0.1500 Ω/km 6024 S3: x' P.System Data 2 S3: feeder reactance per km: x' 0.0010 .. 1.9000 Ω/km 0.0300 Ω/km 6025 S3: Line angle P.System Data 2 10 ..
Page 303: Information List
Appendix A.9 Information List Information List Indications for IEC 60 870-5-103 are always reported ON / OFF if they are subject to general interrogation for IEC 60 870-5-103. If not, they are reported only as ON. New user-defined indications or such newly allocated to IEC 60 870-5-103 are set to ON / OFF and subjected to general interrogation if the information type is not a spontaneous event („.._Ev“).
Page 304 Appendix A.9 Information List Description Function Type Log Buffers Configurable in Matrix IEC 60870-5-103 of In- forma- tion Control Authority (Cntrl Auth) Cntrl Authority IntSP Controlmode LOCAL (ModeLO- Cntrl Authority IntSP CAL) 52 Breaker (52Breaker) Control Device CF_D1 52 Breaker (52Breaker) Control Device CB 240 Disconnect Switch (Disc.Swit.)
Page 305 Appendix A.9 Information List Description Function Type Log Buffers Configurable in Matrix IEC 60870-5-103 of In- forma- tion >Setting Group Select Bit 1 (>Set Change Group LED BI Group Bit1) 009.0100 Failure EN100 Module (Failure EN100-Modul 1 IntSP Module) 009.0101 Failure EN100 Link Channel 1 EN100-Modul 1 IntSP...
Page 306 Appendix A.9 Information List Description Function Type Log Buffers Configurable in Matrix IEC 60870-5-103 of In- forma- tion Failure: Phase Sequence Current Measurem.Su- (Fail Ph. Seq. I) perv Failure: Phase Sequence Voltage Measurem.Su- (Fail Ph. Seq. V) perv Failure: Battery empty (Fail Bat- Device, General tery) I/O-Board Error (I/O-Board error) Device, General...
Page 307 Appendix A.9 Information List Description Function Type Log Buffers Configurable in Matrix IEC 60870-5-103 of In- forma- tion 235.2128 Function $00 has invalid settings ($00 inval.set) 236.2127 BLOCK Flexible Function (BLK. Device, General IntSP Flex.Fct.) Set Point Operating Hours (SP. SetPoint(Stat) Op Hours>) Power System fault...
Page 308 Appendix A.9 Information List Description Function Type Log Buffers Configurable in Matrix IEC 60870-5-103 of In- forma- tion General CLOSE of relay (Relay Device, General CLOSE) Relay GENERAL TRIP command P.System Data 2 (Relay TRIP) Primary fault current Ia (Ia =) P.System Data 2 Primary fault current Ib (Ib =) P.System Data 2...
Page 309 Appendix A.9 Information List Description Function Type Log Buffers Configurable in Matrix IEC 60870-5-103 of In- forma- tion 1132 Fault location invalid (Flt.Loc.in- Fault Locator valid) 1403 >BLOCK 50BF (>BLOCK 50BF) 50BF BkrFailure LED BI 1431 >50BF initiated externally 50BF BkrFailure LED BI (>50BF ext SRC) 1451...
Page 310 Appendix A.9 Information List Description Function Type Log Buffers Configurable in Matrix IEC 60870-5-103 of In- forma- tion 1768 50N-3 picked up (50N-3 picked 50/51 Overcur. 1769 50-3 TRIP (50-3 TRIP) 50/51 Overcur. 1770 50N-3 TRIP (50N-3 TRIP) 50/51 Overcur. 1787 50-3 TimeOut (50-3 TimeOut) 50/51 Overcur.
Page 311 Appendix A.9 Information List Description Function Type Log Buffers Configurable in Matrix IEC 60870-5-103 of In- forma- tion 2157 External battery load is insuffi- Device, General cient (Battery empty) 2158 External battery is under test Device, General (Battery testing) 2159 External battery bad or defect Device, General (Battery bad)
Page 312 Appendix A.9 Information List Description Function Type Log Buffers Configurable in Matrix IEC 60870-5-103 of In- forma- tion 2201 59-2 over voltage Vx PICKUP 27/59 Vx (59-2 Vx PU) 2202 59-2 over voltage Vx TRIP (59-2 27/59 Vx Vx TRIP) 2203 27-1 Phase A Undervoltage 27/59 O/U Volt.
Page 313 Appendix A.9 Information List Description Function Type Log Buffers Configurable in Matrix IEC 60870-5-103 of In- forma- tion 2229 59-2 Phase C picked up (59-2 27/59 O/U Volt. PhC pickup) 2230 59-2 Phase A TRIP (59-2 Ph A 27/59 O/U Volt. TRIP) 2231 59-2 Phase B TRIP (59-2 Ph B...
Page 314 Appendix A.9 Information List Description Function Type Log Buffers Configurable in Matrix IEC 60870-5-103 of In- forma- tion 2657 67N/67N-TOC is BLOCKED 67 Direct. O/C (67N BLOCKED) 2658 67N/67N-TOC is ACTIVE (67N 67 Direct. O/C ACTIVE) 2659 67N-1 is BLOCKED (67N-1 67 Direct.
Page 315 Appendix A.9 Information List Description Function Type Log Buffers Configurable in Matrix IEC 60870-5-103 of In- forma- tion 5171 46 Disk emulation picked up (46 46 Negative Seq Dsk pickedup) 5203 >BLOCK 81O/U (>BLOCK 81 O/U Freq. LED BI 81O/U) 5206 >BLOCK 81-1 (>BLOCK 81-1) 81 O/U Freq.
Page 316 Appendix A.9 Information List Description Function Type Log Buffers Configurable in Matrix IEC 60870-5-103 of In- forma- tion 6534 27-1 Undervoltage PICKUP 27/59 O/U Volt. w/curr. superv (27-1 PU CS) 6537 27-2 Undervoltage picked up 27/59 O/U Volt. (27-2 picked up) 6538 27-2 Undervoltage PICKUP 27/59 O/U Volt.
Page 317 Appendix A.9 Information List Description Function Type Log Buffers Configurable in Matrix IEC 60870-5-103 of In- forma- tion 31000 Q0 operationcounter= (Q0 Control Device OpCnt=) 31001 Q1 operationcounter= (Q1 Control Device OpCnt=) 31008 Q8 operationcounter= (Q8 Control Device OpCnt=) SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 318: Group Alarms
Appendix A.10 Group Alarms A.10 Group Alarms Description Function No. Description Error Sum Alarm Fail Battery I/O-Board error 2186 Error IO board Error Offset Alarm NO calibr Failure Σ I Alarm Sum Event Fail I balance Fail V balance Fail Ph. Seq. I Fail Ph.
Page 319: Measured Values
Appendix A.11 Measured Values A.11 Measured Values Description Function IEC 60870-5-103 Configurable in Matrix Number of TRIPs= (#of TRIPs=) Statistics Operating hours greater than (OpHour>) SetPoint(Stat) Ia (Ia =) Measurement Ib (Ib =) Measurement Ic (Ic =) Measurement In (In =) Measurement I1 (positive sequence) (I1 =) Measurement...
Page 320 Appendix A.11 Measured Values Description Function IEC 60870-5-103 Configurable in Matrix Reactive Power Maximum (QdMax=) Min/Max meter Apparent Power Minimum (SdMin=) Min/Max meter Apparent Power Maximum (SdMax=) Min/Max meter Ia Min (Ia Min=) Min/Max meter Ia Max (Ia Max=) Min/Max meter Ib Min (Ib Min=) Min/Max meter Ib Max (Ib Max=)
Page 321 Appendix A.11 Measured Values Description Function IEC 60870-5-103 Configurable in Matrix 2161 External battery voltage (Vbat =) Measurement 2162 System temperature (SysTemp =) Measurement 2171 External battery current (Ibat =) Measurement 2233 Vx = (Vx =) Measurement 30701 Pa (active power, phase A) (Pa =) Measurement 30702 Pb (active power, phase B) (Pb =)
Page 322 Appendix A.11 Measured Values SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 323: Literature
Literature SIPROTEC 4 System Description; E50417-H1176-C151-A1 SIPROTEC DIGSI, Start UP; E50417-G1176-C152-A2 DIGSI CFC, Manual; E50417-H1176-C098-A5 SIPROTEC SIGRA 4, Manual; E50417-H1176-C070-A1 SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 324 Literature SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 325: Glossary
Glossary Battery The buffer battery ensures that specified data areas, flags, timers and counters are retained retentively. Bay controllers Bay controllers are devices with control and monitoring functions without protective functions. Bit pattern indication Bit pattern indication is a processing function by means of which items of digital process information applying across several inputs can be detected together in parallel and processed further.
Page 326 Glossary Combination matrix DIGSI V4.6 and higher allows up to 32 compatible SIPROTEC 4 devices to communicate with each other in an inter-relay communication network (IRC). The combination matrix defines which devices exchange which in- formation. Communication branch A communications branch corresponds to the configuration of 1 to n users which communicate by means of a common bus.
Page 327 Glossary Double command Double commands are process outputs which indicate 4 process states at 2 outputs: 2 defined (for example ON/OFF) and 2 undefined states (for example intermediate positions) Double-point indication Double-point indications are items of process information which indicate 4 process states at 2 inputs: 2 defined (for example ON/OFF) and 2 undefined states (for example intermediate positions).
Page 328 Glossary ExMV External metered value via an ETHERNET connection, device-specific ExSI External single-point indication via an ETHERNET connection, device-specific → Single-point indication ExSI_F External single point indication via an ETHERNET connection, device-specific, → Fleeting indication, → Single- point indication Field devices Generic term for all devices assigned to the field level: Protection devices, combination devices, bay control- lers.
Page 329 Glossary Grounding Grounding means that a conductive part is to connect via a grounding system to → ground. Grounding Grounding is the total of all means and measured used for grounding. Hierarchy level Within a structure with higher-level and lower-level objects a hierarchy level is a container of equivalent objects. HV field description The HV project description file contains details of fields which exist in a ModPara project.
Page 330 Glossary Initialization string An initialization string comprises a range of modem-specific commands. These are transmitted to the modem within the framework of modem initialization. The commands can, for example, force specific settings for the modem. Inter relay communication → IRC combination IRC combination Inter Relay Communication, IRC, is used for directly exchanging process information between SIPROTEC 4 devices.
Page 331 Glossary Master Masters may send data to other users and request data from other users. DIGSI operates as a master. Metered value Metered values are a processing function with which the total number of discrete similar events (counting pulses) is determined for a period, usually as an integrated value. In power supply companies the electrical work is usually recorded as a metered value (energy purchase/supply, energy transportation).
Page 332 Glossary Object properties Each object has properties. These might be general properties that are common to several objects. An object can also have specific properties. Off-line In offline mode a link with the SIPROTEC 4 device is not necessary. You work with data which are stored in files. OI_F Output indication fleeting →...
Page 333 Glossary Protection devices All devices with a protective function and no control display. Reorganizing Frequent addition and deletion of objects creates memory areas that can no longer be used. By cleaning up projects, you can release these memory areas. However, a clean up also reassigns the VD addresses. As a consequence, all SIPROTEC 4 devices need to be reinitialized.
Page 334 Glossary SICAM WinCC The SICAM WinCC operator control and monitoring system displays the condition of your network graphically, visualizes alarms and indications, archives the network data, allows to intervene manually in the process and manages the system rights of the individual employee. Single command Single commands are process outputs which indicate 2 process states (for example, ON/OFF) at one output.
Page 335 Glossary Tree view The left pane of the project window displays the names and symbols of all containers of a project in the form of a folder tree. This area is called the tree view. TxTap → Transformer Tap Indication User address A user address comprises the name of the station, the national code, the area code and the user-specific phone number.
Page 336 Glossary SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 337: Index
Index Index Determination of Direction 77 Direct voltage 234 46-1, 46-2 107 Directional overcurrent protection 67, 67N 244 Directional Overcurrent Protection Blocking by FFM 77 Directional Time Overcurrent Protection 71 Alternating voltage 235 Analog inputs 234 Auxiliary voltage 234 Electrical tests 237 EMC tests for immunity (type tests) 238 EMC tests for noise emission (type test) 238 Energy counter 271...
Page 338 Index Port F 236 Power supply 234 Inrush Restraint 60, 77 Inrush restraint 246 Insulation test 237 Interlocked Switching 177 Regulations 237 Limits for CFC blocks 265 Limits for user-defined functions 265 Service conditions 240 Line Sections 135 Setting group change option of the functional Line sections 134 settings 272 Local measured value monitoring 270...
Page 339 Index Voltage inputs 234 Voltage protection 249 Voltage Protection 27, 59 89 Voltage protection 27, 59 247 Voltage protection, phase-specific 99 Voltage Symmetry Monitoring 123 Watchdog 122 Web Monitor 185 SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...
Page 340 Index SIPROTEC, 7SC80, Manual E50417-G1140-C486-A1, Release date 12.2011...

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