ABB RELION REB500 Technical Manual
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ABB RELION REB500 Technical Manual

Distributed busbar protection version 8.3 ansi
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RELION
REB500
Distributed busbar protection REB500
Version 8.3 ANSI
Technical manual

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Summary of Contents for ABB RELION REB500

  • Page 1 ® RELION REB500 Distributed busbar protection REB500 Version 8.3 ANSI Technical manual...
  • Page 3 Document ID: 1MRK 505 400-UUS Issued: January 2022 Revision: B Product version: 8.3 © 2020 - 2022 Hitachi Energy. All rights reserved...
  • Page 4 (eay@cryptsoft.com) and Tim Hudson (tjh@cryptsoft.com). Trademarks ABB is a registered trademark of ABB Asea Brown Boveri Ltd. Manufactured by/for a Hitachi Energy company. All other brand or product names mentioned in this document may be trademarks or registered trademarks of their respective holders.
  • Page 5 Disclaimer The data, examples and diagrams in this manual are included solely for the concept or product description and are not to be deemed as a statement of guaranteed properties. All persons responsible for applying the equipment addressed in this manual must satisfy themselves that each intended application is suitable and acceptable, including that any applicable safety or other operational requirements are complied with.
  • Page 6 Conformity This product complies with the directive of the Council of the European Communities on the approximation of the laws of the Member States relating to electromagnetic compatibility (EMC Directive 2004/108/EC) and concerning electrical equipment for use within specified voltage limits (Low-voltage directive 2006/95/EC).

  • Page 7: Table Of Contents

    1MRK 505 400-UUS Rev. B Table of contents Table of contents Section 1 Introduction......................3 This manual..........................3 Intended audience........................3 Product documentation....................... 3 Revision history........................... 3 Symbols and conventions......................4 1.5.1 Symbols.............................4 1.5.2 Document conventions......................4 Section 2 Safety information....................5 Section 3 Signals.........................
  • Page 8 Table of contents 1MRK 505 400-UUS Rev. B 4.7.2 Synchronizing using PPS......................38 4.7.3 Synchronization by SNTP....................... 38 4.7.4 Additional settings........................39 4.7.4.1 Time zone correction......................39 4.7.4.2 Daylight saving time......................39 Section 5 Busbar protection.....................41 Configuration..........................41 Tripping logic..........................42 Section 6 Additional protection options................43 Breaker failure protection (BFP)....................43...

  • Page 9: Introduction

    1MRK 505 400-UUS Rev. B Section 1 Introduction Section 1 Introduction This manual GUID-D4C9F3E0-CA27-4361-A376-B29FE56AE356 v2 The technical manual contains application and functionality descriptions and lists the function blocks, logic diagrams, input and output signals, setting parameters and technical data sorted as per function. Intended audience GUID-7DC1D391-D39C-4FA6-97B2-9DF1729A518C v1 This manual addresses system engineers and installation and commissioning personnel, who use...

  • Page 10: Symbols And Conventions

    Section 1 1MRK 505 400-UUS Rev. B Introduction Symbols and conventions 1.5.1 Symbols GUID-4F7DD10A-DEE5-4297-8697-B8AAB5E3262F v2 The electrical warning icon indicates the presence of a hazard which could result in electrical shock. The warning icon indicates the presence of a hazard which could result in personal injury.

  • Page 11: Safety Information

    1MRK 505 400-UUS Rev. B Section 2 Safety information Section 2 Safety information GUID-7CDA9FB7-5CD6-4BD5-A1D2-AAB8E7BF87A3 v3 Dangerous voltages can occur on the connectors, even though the auxiliary voltage has been disconnected. Non-observance can result in death, personal injury or substantial property damage. Only a competent electrician is allowed to carry out the electrical installation.

  • Page 13: Signals

    1MRK 505 400-UUS Rev. B Section 3 Signals Section 3 Signals GUID-94D71C4D-4DF1-4966-ABD6-AC68BE63A7CB v2 Signal designations GUID-94F39517-0B09-41CF-A9C0-C233AA43A91E v3 The REB500 configuration assigns the signals to predefined inputs and outputs. Signals are designated according to the following convention: Table 1: Abbreviations used for different signal texts Category Abbreviation Bay unit...
  • Page 14 Section 3 1MRK 505 400-UUS Rev. B Signals Table 3: Signal numbers nomenclature Digit 1 Digit 2 Digit 3 Digit 4, 5 Category Protection function Signal function Sequence number Input on Bay unit TRIP Output on Bay unit Block command Input on Central unit Tripping Signal Output on Central unit...

  • Page 15: Binary Inputs On Bay Units

    1MRK 505 400-UUS Rev. B Section 3 Signals Binary inputs on bay units GUID-D6989DA8-87EC-4663-9F09-7327E736720E v3 Table 5: BU general input signals Signal Description 11105_External TRIP The tripping command received from another protection device(including one in the remote station) which is used for the REB500 tripping contact to trip faults, on a line or a power transformer.
  • Page 16 Section 3 1MRK 505 400-UUS Rev. B Signals Signal Description 11605_External release Trip Providing they have been configured, a signal applied to this input enables tripping by the busbar protection and the intertripping function in the bay unit (AND logic of tripping and enabling signals). The input has no influence on other protection functions.
  • Page 17 1MRK 505 400-UUS Rev. B Section 3 Signals Table 6: Signal pairs supervised for anticoincidence Status Inspection 1 Inspection 2 Inspection 3 Inspection 4 OPEN 11615 11625 11635 11645 CLOSED 11620 11630 11640 11650 Table 7: BU input signals for BFP, EFP, OCDT, and PDF Signal Description 12605_Bypass Check Zone...
  • Page 18 Section 3 1MRK 505 400-UUS Rev. B Signals Signal Description 13805_Start BFP Q0 no I_1 The BFP timer starts when this signal is activated and the Breaker 13810_Start BFP Q0 no I_2 (11530_Breaker Position) is closed and valid (independently of the overcurrent measurement).

  • Page 19: Binary Outputs On Bay Units

    1MRK 505 400-UUS Rev. B Section 3 Signals Table 10: BU input signals for bay protection Signal Description 19205_Block BP Blocks the protection output signals of the respective bay unit. Internal processing of the functions continues and therefore measurements and signals continue to be displayed on the local HMI.
  • Page 20 Section 3 1MRK 505 400-UUS Rev. B Signals Signal Description 21140_TRIP L3 Combined tripping command summarizes the phase L3 tripping commands of station protection and bay protection functions (if existing). For details about combined tripping commands see Section 3.8. 21145_TRIP L0 Combined tripping command summarizes the phase L0 tripping commands of station protection and bay protection functions (if existing).
  • Page 21 1MRK 505 400-UUS Rev. B Section 3 Signals Table 12: BU output signals for BBP , BFP, EFP, OCDT, and PDF Signal Description 22405_BBP blocked ○ Signals that BBP is blocked (either individual protection zones or the entire system) 23105_BFP TRIP ●...

  • Page 22: Binary Inputs On Central Unit

    Section 3 1MRK 505 400-UUS Rev. B Signals Table 14: BU output signals for voltage release (UV) Signal Description 28805_Voltage criterion The voltage release criterion of this bay unit is fulfilled (measuring voltage is below the setting of the voltage criterion). Table 15: BU output signals for bay protection (BP) (REB500sys only) Signal...
  • Page 23 1MRK 505 400-UUS Rev. B Section 3 Signals Signal Description 31230_Block BB zone With this signal of the bus bar protection, the intertripping and the external trip of the BB block is blocked. A maximum of 12 bus zones respective blocking signals can be configured in one BIO unit.

  • Page 24: Binary Outputs On Central Unit

    Ext. supervision in service_1/2 inputs not set • An ABB reference (bay) was deactivated under the HMI500 menu, Settings Activate deactivate device first and activated with the limitation no objects afterwards. Due to this setting, the one- line diagram shows an active bay node (bay name), but a deactivated bay figure.
  • Page 25 1MRK 505 400-UUS Rev. B Section 3 Signals Signal Description 41850_Time not in sync Signals that the time synchronization (SNTP, IEC 60870-5-103, PPS or IRIG-B) is missing. After a loss of the synchronization source this signal occurs after a delay of maximum 5 minutes. 41415 BB zone blocked Signals the blocking of BBP or the intertripping system of a bus zone.

  • Page 26: System Blocking Design

    Section 3 1MRK 505 400-UUS Rev. B Signals Signal Description 46705_DR general started This signal must be configured in the central unit and defined as a DR trigger, so that the DR function of the central unit is basically able to be started by the following input signals for general start of DR: •...
  • Page 27 1MRK 505 400-UUS Rev. B Section 3 Signals When signal 31210_Block output relays is activated, the last status of all the protection function outputs is retained. Table 21 Table 22 list how an input can affect the output signal as explained in Table Table 20: Effects of input signals to output signals...
  • Page 28 Section 3 1MRK 505 400-UUS Rev. B Signals Bay Unit 29405_BP blocked 19205_Block BP ≥1 13210_BP Block BFP & 23405_BFP blocked & & 23335_Trip by BFP 13205_Block BFP ≥1 & 23105_BFP Trip & 23110_BFP remote TRIP & & 24405_EFP blocked &...
  • Page 29 1MRK 505 400-UUS Rev. B Section 3 Signals Table 21: Central Unit blocking system Input Output Blocking Inputs Alarms Enable 41305_Trip BP zone 41610_Trip redirected 41405_SP blocked 41415_BB zone blocked 41410_Output relay blocked 41505_Isolator alarm 41805_Alarm 41810_In service 41815_Differential current alarm 41825_Inspection/ maintenance...
  • Page 30 Section 3 1MRK 505 400-UUS Rev. B Signals Input Output Blocking Inputs Alarms Enable 47305_PDF trip 47405_PDF blocked 48805_Voltage criterion 49405_BP blocked Table 22: Bay Unit blocking system Input Output Blocking Inputs Alarm Enable 21105_EXTERNAL TRIP 21110_TRIP 21115_REMOTE TRIP 21305_Trip 21405_SP blocked 21410_Output relays blocked 21805_In service...

  • Page 31: System In Service Design

    1MRK 505 400-UUS Rev. B Section 3 Signals Input Output Blocking Inputs Alarm Enable 24305_EFP trip 24405_EFP blocked 25105_OCDT TRIP 25305_OCDT trip 25405_OCDT blocked 26805_DR ready 26810_DR memory full 26815_DR recording 26820_DR record available 27105_PDF TRIP 27305_PDF trip 27405_PDF blocked 28805_Voltage criterion 29405_BP blocked System In service design...

  • Page 32: Combined Tripping Commands

    Section 3 1MRK 505 400-UUS Rev. B Signals Normal Operation • Initial state (Start-up): False • At start-up and during operation, the following conditions must be met for 21805_In service to be or remain set to True: • not permanently blocked (For details about permanently blocked state, see Operation Manual, section Diagnostic (DIA) system - error handling) •...

  • Page 33: Tripping Commands Automatically Combined By The System

    1MRK 505 400-UUS Rev. B Section 3 Signals 3.8.2 Tripping commands automatically combined by the system GUID-1B983EB8-6E17-449A-B0B3-4A39476697E2 v2 The individual tripping commands of the station protection functions are assigned to the respective combined tripping commands automatically by the system. The same applies for the default tripping commands of the bay protection: •...
  • Page 34 Section 3 1MRK 505 400-UUS Rev. B Signals Table 23: Generation of combined tripping commands SP/BP Three phase TRIP 21110_TRIP → 23105_BFP TRIP → 21105_EXTERNAL → TRIP 25105_OCDT TRIP → 27105_PDF TRIP → 211305_DIST TRIP → 212105_OCDT TRIP → 213105_OCINV →...
  • Page 35 1MRK 505 400-UUS Rev. B Section 3 Signals 23320_BFP TRIP L2 → 21135_TRIP → → PTRC.Tr.phsB 211110_DIST TRIP → → 29120_BP → CB L2 TRIP L2 Phase L3 TRIP 23325_BFP TRIP L3 → 21140_TRIP → → PTRC.Tr.phsC 211115_DIST TRIP → →...

  • Page 37: System Settings

    1MRK 505 400-UUS Rev. B Section 4 System settings Section 4 System settings Circuit breakers GUID-E7473F52-9CCC-49CC-A79C-BCAF7A434740 v3 12000127-IEC18000456-1-en.vsdx IEC18000456 V1 EN-US Figure 2: Settings/Circuit breakers - Overview The Overview tab opens a dialog box with a list of all the feeder-breakers and tie-breakers (bus-section or bus-coupler) shown in the one-line diagram are together with their labels, bay labels, type of circuit breaker (feeder or bus tie) and the circuit breaker reclaim time.

  • Page 38: Disconnectors

    Section 4 1MRK 505 400-UUS Rev. B System settings • The adjusted pick up value of the busbar protection differential current measurement I kmin-set • The maximal primary busbar fault current I kmax • This value can be looked up in Table 25 for 50 Hz and 60 Hz.

  • Page 39: Current Transformers

    1MRK 505 400-UUS Rev. B Section 4 System settings 12000130-IEC18000457-1-en.vsdx IEC18000457 V1 EN-US Figure 3: Settings/Isolators (Disconnectors) - Details Current transformers GUID-983BBBAB-614B-4870-B880-EE3E28542519 v2 The Overview tab opens a dialog box with a list of all the current transformers in the one-line diagram with their labels, bay labels, primary and secondary rated currents.
  • Page 40 Section 4 1MRK 505 400-UUS Rev. B System settings 12000131-IEC18000458-1-en.vsdx IEC18000458 V1 EN-US Figure 4: Settings/Current transformer - Details In the Details view, the label in the Markings field can be edited. The ratios in the Transformer ratio fields are entered in terms of the primary and secondary rated currents. The secondary setting is only for information.

  • Page 41: Voltage Transformers

    1MRK 505 400-UUS Rev. B Section 4 System settings Voltage transformers GUID-84CDD31F-721A-4EE4-AFB9-5ADB6ACFE313 v3 The Overview tab opens a dialog box with a list of all the voltage transformers in the one-line diagram with their labels, bay labels primary and secondary rated voltages. In the Details view, the description can be edited in the input field Markings.

  • Page 42: System Response

    Section 4 1MRK 505 400-UUS Rev. B System settings System response GUID-61266679-9F29-40B1-8891-11E36499366E v2 System response in the Settings menu opens a dialog box that provides a choice of how the system should react to differential current alarms and to isolator alarms. Details of the differential current supervision and isolator status supervision systems are provided in the Application Manual.

  • Page 43: Isolator Operating Time

    1MRK 505 400-UUS Rev. B Section 4 System settings 4.5.3 Isolator operating time GUID-FE83DA35-B1C6-42AC-8F47-21E25F84906A v2 The busbar protection has a common alarm circuit and timer for monitoring the operation of all the disconnectors and bus-tie breakers. The setting of the disconnectors operating time thus applies for all the disconnectors and circuit breakers in the system.

  • Page 44: Synchronizing Using Irig-B

    Section 4 1MRK 505 400-UUS Rev. B System settings These options can be selected using the HMI500 menu item, Settings/Time /Time Synchronization. 4.7.1 Synchronizing using IRIG-B GUID-FCAC779C-88F8-41E8-A0CF-C708A9DF3D52 v1 Electrical IRIG-B synchronization is supported using the X1008 connector on the central unit. Table 29: Connections for synchronizing with electrical IRIG-B Connector...

  • Page 45: Additional Settings

    1MRK 505 400-UUS Rev. B Section 4 System settings 4.7.4 Additional settings GUID-4B8A2581-DB39-4B62-AE0D-EE1572A8330C v1 This section provides additional options for system-time parameters. 4.7.4.1 Time zone correction GUID-B8ECEB52-F5B2-4E5D-A03D-D452593A8CE4 v1 This menu allows the adjustment of the deviation between local time (of installed REB500 system) and UTC (Universal Time coordinated).

  • Page 47: Busbar Protection

    1MRK 505 400-UUS Rev. B Section 5 Busbar protection Section 5 Busbar protection Configuration GUID-7B73D44B-A8CE-48AB-9C2F-465814D4C824 v3 In the busbar protection settings dialog box, there are three tabs for setting parameters for the different operating characteristics. Table 32 lists the allowed ranges for these parameters. Table 32: Busbar protection settings Operating...

  • Page 48: Tripping Logic

    Section 5 1MRK 505 400-UUS Rev. B Busbar protection 12000132-IEC18000459-1-en.vsdx IEC18000459 V1 EN-US Figure 9: Settings/Busbar protection - Operating characteristics The setting for the differential current alarm is entered as a percentage of the minimum fault current setting IKmin. The alarm should be set lower than the lowest load current. A typical setting is 5%. Should the differential current alarm pick up, alarm is not actually given until the set time delay has expired.

  • Page 49: Additional Protection Options

    1MRK 505 400-UUS Rev. B Section 6 Additional protection options Section 6 Additional protection options Breaker failure protection (BFP) 6.1.1 Mode of operation GUID-6AD4721F-D00B-4230-B03B-0E9466B98A11 v3 The circuit breaker is the last and most important link in the protection chain. The purpose of BFP is to take the right action should the circuit breaker fail to execute a trip command.
  • Page 50 Section 6 1MRK 505 400-UUS Rev. B Additional protection options ANSI18000336 V1 EN-US Figure 11: Block diagram of BFP (logic type 1) Distributed busbar protection REB500 Technical manual © 2020 - 2022 Hitachi Energy. All rights reserved...

  • Page 51: Configuration

    1MRK 505 400-UUS Rev. B Section 6 Additional protection options 6.1.2 Configuration GUID-D6AB3AA3-F1C3-41E7-A08A-585F8D60A742 v3 BFP has two adjustable timers. At the end of time t1, a second attempt is made to trip the breaker that has failed to trip; at the end of time t2 the surrounding breakers are tripped. A transfer-tripping signal to the remote station generated either at the end of time t1 or t2 can also be enabled using HMI500.

  • Page 52: Bfp Neutral Measurement System (Bfp L0)

    Section 6 1MRK 505 400-UUS Rev. B Additional protection options 14000027-IEC18000464-1-en.vsdx IEC18000464 V1 EN-US Figure 12: Settings/Breaker failure protection - Details In the Details view, BFP can be activated per bay; transfer trip (remote trip) can be applied after completion of either timer t1 or t2. For a description of the different logic types, refer to the Application Manual.
  • Page 53 1MRK 505 400-UUS Rev. B Section 6 Additional protection options Detailed knowledge of the network, the protection systems and possible fault scenarios is necessary to configure this function correctly. Misconfiguration might lead to unselective tripping and loss of supply. The BFP L0 system is an integrated part in the conventional BFP function that can be activated and configured separately.

  • Page 54: Configuration Or Current Setting Of Bfp L0 System

    Section 6 1MRK 505 400-UUS Rev. B Additional protection options 6.2.2 Configuration or current setting of BFP L0 system GUID-1D274D2F-B5CD-4B0B-AB04-D632E1DC368A v2 Similar to the conventional BFP for the phase system, the BFP L0 system works with two timer stages. To allow for independent fault clearance behavior, timer stage t1-L0 is implemented as a completely separate timer, independent from the timer stages t1 of the BFP phase system.

  • Page 55: Details

    1MRK 505 400-UUS Rev. B Section 6 Additional protection options 6.2.2.1 Details GUID-5C3D7734-70AD-41BB-ADD3-8D8075FC3B3F v2 14000028-IEC18000465-1-en.vsdx IEC18000465 V1 EN-US Figure 15: Settings/Breaker failure protection - Details (L0 system activated) In the Details view, the neutral system L0 of BFP can be activated and configured per bay by selecting the checkbox Active for L0: •...

  • Page 56: Overcurrent Definite Time Protection

    Section 6 1MRK 505 400-UUS Rev. B Additional protection options Overcurrent definite time protection 6.3.1 Mode of operation GUID-D996EDA5-9B30-4B1D-9C2C-91598EC486E2 v2 The overcurrent protection (def. time) function operates entirely independently of the other protection functions in each of the bay units and does not intertrip the respective busbar protection zone. 25805_OCDT Start 45805_OCDT Start (CU) >...

  • Page 57: End Fault Protection

    1MRK 505 400-UUS Rev. B Section 6 Additional protection options 12000181-IEC18000460-1-en.vsdx IEC18000460 V1 EN-US Figure 17: Settings/Time-overcurrent protection - Details End fault protection 6.4.1 Mode of operation GUID-6B574A13-42D5-497A-A1F8-EC18E9BFF574 v3 The end fault protection detects faults between an open circuit breaker and the CT, which cannot be cleared by the busbar protection on its own.
  • Page 58 Section 6 1MRK 505 400-UUS Rev. B Additional protection options 11530_Isolator/ Breaker position CB "OPEN" CB "OPEN" Pick-up delay 24805_EFP start auxiliary contact auxiliary contact 24305_EFP trip CLOSE & & coil 11505_Close 44305_EFP trip (CU) Command CB EFP timer (36 ms) &...

  • Page 59: Configuration

    1MRK 505 400-UUS Rev. B Section 6 Additional protection options > EFP setting 24805_EFP start > EFP setting 24305_EFP trip > EFP setting 44305_EFP trip (CU) EFP timer (36 ms) 24105_EFP REMOTE TRIP & 11530_Isolator/ Breaker Position EFP intertrip Pick-up delay CB "OPEN"...

  • Page 60: Breaker Pole Discrepancy Protection (Pdf)

    Section 6 1MRK 505 400-UUS Rev. B Additional protection options Parameter Min. Max. Default Step Unit EFP active inactive Pick up delay 10.0 Pick up setting To avoid false tripping after the circuit breaker has opened, the delay for the end fault protection must be set longer than the time t1 of BFP.
  • Page 61 1MRK 505 400-UUS Rev. B Section 6 Additional protection options 27805_PDF start < pd PDF timer < pd (greatest of < pd < pd & , I ) > I mset 27305_PDF Trip 47305_PDF Trip & 17610_PDF ext release 27105_PDF TRIP &...

  • Page 62: Configuration

    Section 6 1MRK 505 400-UUS Rev. B Additional protection options Under certain conditions, the breaker at the remote end or possibly some other breaker may be involved without a plausibility check. 6.5.2 Configuration GUID-EA8739A1-E58C-480E-A501-8D9F2384EFDE v2 Breaker pole discrepancy protection settings: Table 35: Setting parameters of the breaker pole discrepancy protection Parameters...

  • Page 63: Additional Functions

    1MRK 505 400-UUS Rev. B Section 7 Additional functions Section 7 Additional functions Voltage release GUID-1A0AC9BB-EE9B-491D-B245-6185BAA8FB18 v3 The voltage function is used to enable tripping or other functions as described below. It forms part of a bay unit equipped with the corresponding VTs. The internal output signal of the voltage function is an enabling signal.

  • Page 64: Combined Over- And Undervoltage Release

    Section 7 1MRK 505 400-UUS Rev. B Additional functions Used as an undervoltage release criterion U< : The phase-to-ground voltages (U ) are measured. Used as a ground overvoltage release criterion 3U0>: Depending on the setting calculated internally, the neutral voltage is either evaluated and is derived internally from the three ...

  • Page 65: Vt Assignment

    1MRK 505 400-UUS Rev. B Section 7 Additional functions 14000035-IEC18000469-1-en.vsdx IEC18000469 V1 EN-US Figure 25: Settings/Voltage Release - Detailed view (Combined voltage release) 7.1.2 VT assignment GUID-677D2DA3-CCB3-487F-9AD9-BBAAFDDB9140 v2 14000036-ANSI18000470-1-en.vsdx ANSI18000470 V1 EN-US Figure 26: VT assignment Distributed busbar protection REB500 Technical manual ©...

  • Page 66: Vt Located In A Feeder Or A Bus-Tie Breaker Arrangement

    Section 7 1MRK 505 400-UUS Rev. B Additional functions 7.1.2.1 VT Located in a feeder or a bus-tie breaker arrangement GUID-51F556DC-6D9E-4406-B851-393EAB4F7DDF v2 Figure 26 shows VT T5(3) which is assigned to Bay Unit located in feeder 3. It measures the feeder voltage.

  • Page 67: Release Logic Or Matrix

    1MRK 505 400-UUS Rev. B Section 7 Additional functions Parameter Min. Max. Default Step Unit Overcurrent release active inactive pick up setting when active The overcurrent release function is processed independently of the release logic. 14000038-IEC18000471-1-en.vsdx IEC18000471 V1 EN-US Figure 28: Settings/Overcurrent Release - Detailed view 7.2.2 Release logic or matrix...

  • Page 68: Enabling Protection Zone Functions (Columns 1 To 4)

    Section 7 1MRK 505 400-UUS Rev. B Additional functions 7.2.2.2 Enabling protection zone functions (columns 1 to 4) GUID-444F11E5-8038-46F0-BC1A-044FE1B9A977 v3 Checking the boxes in columns 1 to 4 of Figure 29 subjects intertripping of protection zones or the functions of bay units switched onto the respective protection zone to being enabled by the voltage release.

  • Page 69: Release By 31805_External Release Bb Zone

    1MRK 505 400-UUS Rev. B Section 7 Additional functions 7.2.3 Release by 31805_External release BB zone GUID-95AA48CF-589A-47AF-A117-99C365EA8828 v3 There is a 31805_External release BB zone signal for every protection zone configured on the central unit (for example, enable trip-ping of BB zone 1 or enable tripping BB zone 2). They are binary inputs and enable intertripping of the busbar zones by the respective functions (see Figure 29).
  • Page 70 Section 7 1MRK 505 400-UUS Rev. B Additional functions 13605_Trip redirection_1 23110_BFP Remote Trip & & 13606_Trip redirection_2 23335_Trip by BFP > setting “1” Intertrip (CU) > setting > setting BFP Trip (internal) OCDT Trip (internal) PDF Trip (internal) 11105_EXT. TRIP BBP Trip (internal) 13610_BP Trip transfer 14000024-ANSI18000334-1-en.vsdx...
  • Page 72 Hitachi Energy Sweden AB Grid Automation Products SE-721 59 Västerås, Sweden Phone +46 (0) 10 738 00 00 https://hitachienergy.com/protection-control Scan this QR code to visit our website © 2020 - 2022 Hitachi Energy. All rights reserved...

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