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Copyright This document and parts thereof must not be reproduced or copied without written permission from ABB, and the contents thereof must not be imparted to a third party, nor used for any unauthorized purpose. The software or hardware described in this document is furnished under a license and may be used, copied, or disclosed only in accordance with the terms of such license.
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ABB is not liable for any such damages and/or losses.
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(Low-voltage directive 2006/95/EC). This conformity is the result of tests conducted by ABB in accordance with the product standards EN 50263 and EN 60255-26 for the EMC directive, and with the product standards EN 60255-1 and EN 60255-27 for the low voltage directive.
Table of contents Table of contents Section 1 Introduction................5 This manual....................5 Intended audience..................5 Product documentation................6 Product documentation set..............6 Document revision history..............6 Related documentation................7 Symbols and conventions.................7 Symbols....................7 Document conventions................ 8 Functions, codes and symbols............8 Section 2 RED615 overview..............13 Overview....................13 Product version history..............
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Table of contents Applications..................34 Functions................... 35 Default I/O connections..............35 Default disturbance recorder settings...........37 Functional diagrams................39 Functional diagrams for protection..........40 Functional diagrams for disturbance recorder......52 Functional diagrams for condition monitoring.......53 Functional diagrams for control and interlocking......56 Functional diagrams for measurement functions......59 Functional diagrams for IO and alarm LEDs........
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Table of contents Ground current................99 Phase voltages................99 Ground voltage................100 Sensor inputs................100 Auxiliary supply voltage input............100 Binary inputs..................100 RTD/mA inputs................102 Outputs....................102 Outputs for tripping and controlling..........102 Outputs for signalling...............103 IRF....................104 Protection communication options............104 Section 6 Glossary................107 RED615 ANSI Application Manual...
Section 1 1MAC807603-MB A Introduction Section 1 Introduction This manual The application manual contains application descriptions and setting guidelines sorted per function. The manual can be used to find out when and for what purpose a typical protection function can be used. The manual can also be used when calculating settings. Intended audience This manual addresses the protection and control engineer responsible for planning, pre- engineering and engineering.
Product series- and product-specific manuals can be downloaded from the ABB Web site http://www.abb.com/relion. 1.3.2 Document revision history Document revision/date Product version History A/2018-02-26 5.0 FP1 First release Download the latest documents from the ABB Web site http://www.abb.com/substationautomation. RED615 ANSI Application Manual...
Section 1 1MAC807603-MB A Introduction Although warning hazards are related to personal injury, it is necessary to understand that under certain operational conditions, operation of damaged equipment may result in degraded process performance leading to personal injury or death. Therefore, comply fully with all warning and caution notices.
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Section 1 1MAC807603-MB A Introduction Function IEC 61850 IEC 60617 ANSI/C37.2-2008 Disconnector position indication DCSXSWI1 I <-> O DC (1) 52-TOC DCSXSWI2 I <-> O DC (2) 29DS-1 DCSXSWI3 I <-> O DC (3) 29DS-2 Grounding switch indication ESSXSWI1 I <-> O ES (1) 29GS-1 ESSXSWI2 I <->...
RED615 relays communicate between substations over a fiber optic link ® or a galvanic pilot wire connection. RED615 is a member of ABB’s Relion product family and part of its 615 protection and control product series. The 615 series relays are characterized by their compactness and withdrawable-unit design.
AR Sequence Visualizer • Label Printing • IEC 61850 Configuration • IED Configuration Migration • Differential Characteristics Tool Download connectivity packages from the ABB Web site http://www.abb.com/substationautomation or directly with Update Manager in PCM600. Operation functionality 2.2.1 Optional features • Autoreclosing •...
Section 2 1MAC807603-MB A RED615 overview Physical hardware The protection relay consists of two main parts: plug-in unit and case. The content depends on the ordered functionality. Table 2: Plug-in unit and case Main unit Slot ID Content Details Plug-in Large (10 lines, 20 characters) with SLD unit X100...
Section 2 1MAC807603-MB A RED615 overview See the installation manual for more information about the case and the plug-in unit. The connection diagrams of different hardware modules are presented in this manual. Table 3: Input/output overview Std. conf. Order code digit Analog channels Binary channels Combi...
Section 2 1MAC807603-MB A RED615 overview A070704-ANSI V3 EN Figure 2: Example of the LHMI 2.4.1 Display The LHMI includes a graphical display that supports one character size. The character size depends on the selected language. The amount of characters and rows fitting the view depends on the character size.
Section 2 1MAC807603-MB A RED615 overview A070705-ANSI V3 EN Figure 3: Display layout 1 Header 2 Icon 3 Content 4 Scroll bar (displayed when needed) 2.4.2 LEDs The LHMI includes three protection indicators above the display: Normal, Pickup and Trip. There are 11 matrix programmable LEDs on front of the LHMI.
Section 2 1MAC807603-MB A RED615 overview A071176-ANSI V1 EN Figure 4: LHMI keypad with object control, navigation and command push buttons and RJ-45 communication port Web HMI The WHMI allows secure access to the protection relay via a Web browser. The supported Web browser versions are Internet Explorer 9.0, 10.0 and 11.0.
Section 2 1MAC807603-MB A RED615 overview A070754 V6 EN Figure 5: Example view of the WHMI The WHMI can be accessed locally and remotely. • Locally by connecting the laptop to the protection relay via the front communication port. • Remotely over LAN/WAN.
Section 2 1MAC807603-MB A RED615 overview Table 5: Predefined user categories Username User rights VIEWER Read only access OPERATOR • Selecting remote or local state with (only locally) • Changing setting groups • Controlling • Clearing indications ENGINEER • Changing settings •...
Section 2 1MAC807603-MB A RED615 overview Table 6: TCP and UDP ports used for different services Service Port File Transfer Protocol (FTP and FTPS) 20, 21 IEC 61850 Web Server HTTP Web Server HTTPS Simple Network Time Protocol (SNTP) Modbus TCP DNP TCP 20000 The IEC 61850 communication implementation supports all monitoring and control...
Section 2 1MAC807603-MB A RED615 overview the protection relay loop. The end links of the protection relay loop can be attached to the same external switch or to two adjacent external switches. A self-healing Ethernet ring requires a communication module with at least two Ethernet interfaces for all protection relays.
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Section 2 1MAC807603-MB A RED615 overview time, thus fulfilling the stringent real-time requirements for the substation automation horizontal communication and time synchronization. PRP specifies that each device is connected in parallel to two local area networks. HSR applies the PRP principle to rings and to the rings of rings to achieve cost-effective redundancy.
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Section 2 1MAC807603-MB A RED615 overview In case a laptop or a PC workstation is connected as a non-PRP node to one of the PRP networks, LAN A or LAN B, it is recommended to use a redundancy box device or an Ethernet switch with similar functionality between the PRP network and SAN to remove additional PRP information from the Ethernet frames.
Section 2 1MAC807603-MB A RED615 overview 2.7.3 Protection communication and supervision The communication between the relays is enabled by means of a dedicated fiber optic communication channel. 1310 nm multi-mode or single-mode fibers with LC connectors are used for line differential communication. The channel is used for transferring the phase segregated current value data between the relays.
Section 3 1MAC807603-MB A RED615 standard configurations Section 3 RED615 standard configurations Standard configurations RED615 is available with two alternative standard configurations. The standard signal configuration can be altered by means of the signal matrix or the graphical application functionality of the Protection and Control IED Manager PCM600. Further, the application configuration functionality of PCM600 supports the creation of multi-layer logic functions utilizing various logical elements including timers and flip-flops.
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Section 3 1MAC807603-MB A RED615 standard configurations Function IEC 61850 ANSI Non-directional ground-fault protection, EFHPTOC high stage Directional ground-fault protection, low DEFLPDEF 67/51N stage Directional ground-fault protection, high DEFHPDEF 67/50N stage Admittance-based ground-fault EFPADM 21YN 1)2) protection Wattmetric-based ground-fault WPWDE 1)2) protection Transient/intermittent ground-fault...
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Section 3 1MAC807603-MB A RED615 standard configurations Function IEC 61850 ANSI Power quality Current total demand distortion CMHAI Voltage total harmonic distortion VMHAI PQVPH Voltage variation PHQVVR PQSS Voltage unbalance VSQVUB PQVUB Control Circuit-breaker control CBXCBR Disconnector control DCXSWI 29DS Grounding switch control ESXSWI 29GS...
Section 3 1MAC807603-MB A RED615 standard configurations Function IEC 61850 ANSI IEC 61850-9-2 LE sampled value SMVRECEIVER SMVRECEIVER receiving (voltage sharing) Other Minimum pulse timer (2 pcs) TPGAPC 62TP Minimum pulse timer (2 pcs, second TPSGAPC 62TPS resolution) Minimum pulse timer (2 pcs, minute TPMGAPC 62TPM resolution)
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Section 3 1MAC807603-MB A RED615 standard configurations The external I/O module’s binary inputs and outputs can be used for the less time-critical binary signals of the application. The integration enables releasing some initially reserved binary inputs and outputs of the protection relay’s standard configuration. The suitability of the protection relay’s binary outputs which have been selected for primary device control should be carefully verified, for example make and carry and breaking capacity.
Section 3 1MAC807603-MB A RED615 standard configurations Connection diagrams RED615 X100 X120 BI 1 Positive Current Direction BI 2 BI 3 BI 4 1/5A 1/5A 1/5A 1/5A X130 BI 1 BI 2 TCM-1 BI 3 BI 4 TCM-2 60 - 210V U12B 60 -...
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Section 3 1MAC807603-MB A RED615 standard configurations Positive Current Direction RED615 X130 X100 0.2/1A X131 X132 X133 TCM-1 TCM-2 X110 X110 BI 1 BI 2 BI 3 BI 4 BI 5 BI 6 BI 7 BI 8 1) 2) 1) 2) 1) 3) GNDC IRIG-B -...
Section 3 1MAC807603-MB A RED615 standard configurations Standard configuration D 3.3.1 Applications The standard configuration with directional overcurrent and directional ground-fault protection, phase-voltage and frequency based protection is mainly intended for cable feeder applications in distribution networks. The standard configuration for line current differential protection includes support for in-zone transformers.
Section 3 1MAC807603-MB A RED615 standard configurations The analog channels have fixed connections to the different function blocks inside the protection relay’s standard configuration. However, the 12 analog channels available for the disturbance recorder function are freely selectable as a part of the disturbance recorder’s parameter settings.
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Section 3 1MAC807603-MB A RED615 standard configurations EFPADM1 BLOCK TRIP EFPADM1_21YN-1_TRIP RELEASE PICKUP EFPADM1_21YN-1_PICKUP O:64|T:5|I:1 EFPADM2 BLOCK TRIP EFPADM2_21YN-2_TRIP RELEASE PICKUP EFPADM2_21YN-2_PICKUP O:35|T:5|I:2 EFPADM3 BLOCK TRIP EFPADM3_21YN-3_TRIP RELEASE PICKUP EFPADM3_21YN-3_PICKUP O:27|T:5|I:3 EFPADM1_21YN-1_TRIP EFPADM_TRIP EFPADM2_21YN-2_TRIP EFPADM3_21YN-3_TRIP O:108|T:2.5|I:27 GUID-C6B0AF21-D334-43CB-B19E-DB4A31C58882 V1 EN Figure 19: Admittance-based ground-fault protection function The output BLK2H of three-phase inrush detector INRPHAR1_INR-1 offers the possibility to either block the function or multiply the active settings for any of the...
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Section 3 1MAC807603-MB A RED615 standard configurations NSPTOC1 BLOCK TRIP CCSPVC1_CCM_FAIL NSPTOC1_46-1_TRIP ENA_MULT PICKUP NSPTOC1_46-1_PICKUP O:33|T:5|I:1 NSPTOC2 BLOCK TRIP CCSPVC1_CCM_FAIL NSPTOC2_46-2_TRIP ENA_MULT PICKUP NSPTOC2_46-2_PICKUP O:34|T:5|I:2 NSPTOC1_46-1_TRIP NSPTOC_TRIP NSPTOC2_46-2_TRIP O:115|T:2.5|I:12 GUID-24188DD9-CE79-4CAD-975B-BD641AA03A08 V1 EN Figure 21: Negative-sequence overcurrent protection function Phase discontinuity protection PDNSPTOC1_46PD protects for interruptions in the normal three-phase load supply, for example, in downed conductor situations.
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Section 3 1MAC807603-MB A RED615 standard configurations undervoltage PSPTUV1_47U-1 and negative-sequence overvoltage NSPTOV1_47-1 protection functions enable voltage-based unbalance protection. A failure in the voltage measuring circuit is detected by the fuse failure function and the activation is connected to block undervoltage protection functions and voltage based unbalance protection functions to avoid faulty tripping.
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Section 3 1MAC807603-MB A RED615 standard configurations NSPTOV1 BLOCK TRIP SEQSPVC1_60-1_FUSEF_U NSPTOV1_47-1_TRIP PICKUP NSPTOV1_47-1_PICKUP O:70|T:5|I:1 GUID-245C338F-2E41-49E9-AA96-1B56769CF6B0 V1 EN Figure 26: Negative-sequence overvoltage protection function PSPTUV1 BLOCK TRIP SEQSPVC1_60-1_FUSEF_U PSPTUV1_47U-1_TRIP PICKUP PSPTUV1_47U-1_PICKUP O:69|T:5|I:1 GUID-D0E60CE1-1066-46FD-9118-BA8885F1B640 V1 EN Figure 27: Positive-sequence undervoltage protection function The residual overvoltage protection ROVPTOV_59G/N provides ground-fault protection by detecting an abnormal level of residual voltage.
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Section 3 1MAC807603-MB A RED615 standard configurations The autoreclosing function can be inhibited with the INHIBIT_RECL input. By default, few selected protection function operations are connected to this input. A control command to the circuit breaker, either local or remote, also blocks the autoreclosing function via the CBXCBR1_52-1_SELECTED signal.
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Section 3 1MAC807603-MB A RED615 standard configurations PHIPTOC1_50P-3_TRIP DPHHPDOC1_67/50P-1_TRIP DPHLPDOC1_67/51P-1_TRIP LNPLDF1_87L-1_TRIP CCBRBRF1 BLOCK CB_FAULT_AL O:66|T:2.5|I:48 O:78|T:2.5|I:25 PICKUP TRBU CCBRBRF1_50BF-1_TRBU POSCLOSE TRRET X120_BI2_CB_CLOSED CCBRBRF1_50BF-1_TRRET CB_FAULT O:94|T:2.5|I:1 DEFHPDEF1_67/50N-1_TRIP DEFLPDEF2_67/51N-2_TRIP WPWDE2_32N-2_TRIP WPWDE3_32N-3_TRIP EFPADM2_21YN-2_TRIP EFPADM3_21YN-3_TRIP O:67|T:2.5|I:32 GUID-82F09B94-DDC1-4536-B182-1F3C5E21D89F V1 EN Figure 30: Circuit breaker failure protection function The trip signals from the protection functions are connected to the two trip logics TRPPTRC1_86/94-1 and TRPPTRC2_86/94-2.
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Section 3 1MAC807603-MB A RED615 standard configurations SEQSPVC1 BLOCK FUSEF_3PH SEQSPVC1_60-1_FUSEF_3PH CB_CLOSED FUSEF_V X120_BI2_CB_CLOSED SEQSPVC1_60-1_FUSEF_U DISCON_OPEN MINCB_OPEN O:59|T:2.5|I:1 GUID-AF0E63F8-B9D1-41FE-8A9F-59510E3D93BF V1 EN Figure 35: Fuse failure supervision function Circuit-breaker condition monitoring SSCBR1_52CM-1 supervises the switch status based on the connected binary input information and the measured current levels. SSCBR1_52CM-1 introduces various supervision methods.
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Section 3 1MAC807603-MB A RED615 standard configurations functions are blocked by the master trip TRPPTRC1_86/94-1 and TRPPTRC2_86/94-2 and the circuit breaker open signal. It is assumed that there is no external resistor in the circuit breaker tripping coil circuit connected in parallel with the circuit breaker normally open auxiliary contact.
Section 3 1MAC807603-MB A RED615 standard configurations PCSITPC1 WARNING ALARM PCSITPC1_PCS-1_ALARM COMM O:79|T:5|I:1 GUID-32ED8314-9BCA-4B0A-B329-F12C6AF0D012 V1 EN Figure 40: Protection communication supervision function The binary signal transfer function BSTGGIO is used for changing any binary information which can be used for example, in protection schemes, interlocking and alarms.
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Section 3 1MAC807603-MB A RED615 standard configurations If REMOTE_FEEDER_READY information is missing, for example, in case of protection communication not being connected, it disables the circuit breaker closing in the local relay. CBXCBR1 POSOPEN SELECTED X120_BI3_CB_OPEN CBXCBR1_52-1_SELECTED POSCLOSE EXE_OP X120_BI2_CB_CLOSED CBXCBR1_52-1_EXE_OP ENA_OPEN EXE_CL...
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Section 3 1MAC807603-MB A RED615 standard configurations The configuration includes the logic for generating circuit breaker external closing and opening command with the relay in local or remote mode. Check the logic for the external circuit breaker closing command and modify it according to the application.
Section 3 1MAC807603-MB A RED615 standard configurations AND6 TRPPTRC1_86/94-1_TRIP LOCAL_FEEDER_READY O:134|T:2.5|I:0 O:135|T:2.5|I:0 TRPPTRC2_86/94-2_TRIP O:133|T:2.5|I:2 GUID-3291DE3C-1967-4AE8-80AE-AFA05A90AEC1 V1 EN Figure 49: Logic for local feeder ready 3.3.3.5 Functional diagrams for measurement functions The phase current inputs to the relay are measured by the three-phase current measurement function CMMXU1.
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Section 3 1MAC807603-MB A RED615 standard configurations CSMSQI1 O:144|T:5|I:1 GUID-B7A68333-1785-4BCC-A389-BB00EC6CB617 V1 EN Figure 51: Sequence current measurements RESCMMXU1 BLOCK HIGH_ALARM HIGH_WARN O:149|T:5|I:1 GUID-6CA1D2EE-B790-4EE0-8CE9-431C092FE9F4 V1 EN Figure 52: Ground current measurements VMMXU1 VMMXU2 BLOCK HIGH_ALARM BLOCK HIGH_ALARM HIGH_WARN HIGH_WARN LOW_WARN LOW_WARN LOW_ALARM LOW_ALARM O:9|T:5|I:1...
Section 3 1MAC807603-MB A RED615 standard configurations The signal marked with VA, VB and VC represents the three phase voltages. The protection relay offers six different setting groups which can be set based on individual needs. Each group can be activated or deactivated using the setting group settings available in the protection relay.
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Section 3 1MAC807603-MB A RED615 standard configurations EFPADM1 BLOCK TRIP EFPADM1_21YN-1_TRIP RELEASE PICKUP EFPADM1_21YN-1_PICKUP O:31|T:5|I:1 EFPADM2 BLOCK TRIP EFPADM2_21YN-2_TRIP RELEASE PICKUP EFPADM2_21YN-2_PICKUP O:27|T:5|I:2 EFPADM3 BLOCK TRIP EFPADM3_21YN-3_TRIP RELEASE PICKUP EFPADM3_21YN-3_PICKUP O:28|T:5|I:3 EFPADM1_21YN-1_TRIP EFPADM_TRIP EFPADM2_21YN-2_TRIP EFPADM3_21YN-3_TRIP O:123|T:2.5|I:52 GUID-3069433B-79BD-42C3-907E-5EDA3C0C7C29 V1 EN Figure 75: Admittance-based ground-fault protection function The output BLK2H of three-phase inrush detector INRPHAR1_INR-1 offers the possibility to either block the function or multiply the active settings for any of the...
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Section 3 1MAC807603-MB A RED615 standard configurations NSPTOC1 BLOCK TRIP CCSPVC1_CCM_FAIL NSPTOC1_46-1_TRIP ENA_MULT PICKUP NSPTOC1_46-1_PICKUP O:53|T:5|I:1 NSPTOC2 BLOCK TRIP CCSPVC1_CCM_FAIL NSPTOC2_46-2_TRIP ENA_MULT PICKUP NSPTOC2_46-2_PICKUP O:54|T:5|I:2 NSPTOC1_46-1_TRIP NSPTOC_TRIP NSPTOC2_46-2_TRIP O:129|T:2.5|I:1 GUID-96893425-50DA-4678-B161-09AAB959914D V1 EN Figure 77: Negative-sequence overcurrent protection function Phase discontinuity protection PDNSPTOC1_46PD protects for interruptions in the normal three-phase load supply, for example, in downed conductor situations.
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Section 3 1MAC807603-MB A RED615 standard configurations undervoltage PSPTUV1_47U-1 and negative-sequence overvoltage NSPTOV1_47-1 protection functions enable voltage-based unbalance protection. A failure in the voltage measuring circuit is detected by the fuse failure function and the activation is connected to block undervoltage protection functions and voltage based unbalance protection functions to avoid faulty tripping.
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Section 3 1MAC807603-MB A RED615 standard configurations ROVPTOV1 BLOCK TRIP ROVPTOV1_59G_TRIP PICKUP ROVPTOV1_59G_PICKUP O:48|T:5|I:1 ROVPTOV2 BLOCK TRIP SEQSPVC1_60-1_FUSEF_U ROVPTOV2_59N-1_TRIP PICKUP ROVPTOV2_59N-1_PICKUP O:45|T:5|I:2 GUID-18B864F6-C8C8-462E-B980-63AC349B8D31 V1 EN Figure 84: Residual voltage protection function The overcurrent protection, negative-sequence overcurrent protection, phase discontinuity, ground-fault protection, residual overvoltage protection, phase overvoltage and undervoltage protection are all used as backup protection against line differential protection.
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Section 3 1MAC807603-MB A RED615 standard configurations General pickup and trip from all the functions are connected to minimum pulse timer TPGAPC1 for setting the minimum pulse length for the outputs. The output from TPGAPC1 is connected to binary outputs. TPGAPC4 OUT1 PHIPTOC1_50P-3_PICKUP...
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Section 3 1MAC807603-MB A RED615 standard configurations SEQSPVC1 BLOCK FUSEF_3PH SEQSPVC1_60-1_FUSEF_3PH CB_CLOSED FUSEF_V X110_BI4_CB_CLOSED SEQSPVC1_60-1_FUSEF_U DISCON_OPEN MINCB_OPEN O:21|T:2.5|I:1 GUID-8C224307-6F7A-4782-B6F6-F6E8693D8DD2 V1 EN Figure 91: Fuse failure supervision function Circuit-breaker condition monitoring SSCBR1_52CM-1 supervises the switch status based on the connected binary input information and the measured current levels. SSCBR1_52CM-1 introduces various supervision methods.
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Section 3 1MAC807603-MB A RED615 standard configurations functions are blocked by the master trip TRPPTRC1_86/94-1 and TRPPTRC2_86/94-2 and the circuit breaker open signal. It is assumed that there is no external resistor in the circuit breaker tripping coil circuit connected in parallel with the circuit breaker normally open auxiliary contact.
Section 3 1MAC807603-MB A RED615 standard configurations The binary signal transfer function BSTGGIO is used for changing any binary information which can be used for example, in protection schemes, interlocking and alarms. There are eight separate inputs and corresponding outputs available. In this configuration, one physical input X110:BI2 is connected to the binary signal transfer channel one.
Section 3 1MAC807603-MB A RED615 standard configurations CONTROL_LOCAL FALSE O:20|T:2.5|I:3 CBXCBR1_52-1_AU_CLOSE O:26|T:2.5|I:11 CONTROL_REMOTE FALSE O:19|T:2.5|I:4 GUID-5572B8B6-1A0B-44A0-90D1-3F1206447B65 V1 EN Figure 101: External closing command for circuit breaker CONTROL_LOCAL FALSE O:18|T:2.5|I:0 CBXCBR1_52-1_AU_OPEN O:25|T:2.5|I:3 CONTROL_REMOTE FALSE O:17|T:2.5|I:1 GUID-C637AED6-8700-4B50-B40D-7FD03A167B22 V1 EN Figure 102: External opening command for circuit breaker T1PTTR1_49F-1_BLK_CLOSE CBXCBR1_52-1_BLK_CLOSE T2PTTR1_49T-1_BLK_CLOSE...
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Section 3 1MAC807603-MB A RED615 standard configurations The three-phase bus side phase voltage inputs to the relay are measured by three-phase voltage measurement VMMXU1. The voltage input is connected to the X130 card in the back panel. The sequence voltage measurement VSMSQI1 measures the sequence voltage and the residual voltage measurement RESVMMXU1 measures the residual voltage.
Section 3 1MAC807603-MB A RED615 standard configurations VSMSQI1 O:137|T:5|I:1 GUID-7245E0F7-8618-4075-AA69-EF878712B945 V1 EN Figure 109: Sequence voltage measurements FMMXU1 O:153|T:5|I:1 GUID-163EFA2A-2947-4148-94DF-D3CDABFA3F5B V1 EN Figure 110: Frequency measurement PEMMXU1 RSTACM O:145|T:5|I:1 GUID-0808D8D7-45E2-49D7-AC53-6E4DE46D3137 V1 EN Figure 111: Three-phase power and energy measurement FLTRFRC1 BLOCK CB_CLRD O:7|T:2.5|I:1...
Section 4 1MAC807603-MB A Requirements for measurement transformers Section 4 Requirements for measurement transformers Current transformers 4.1.1 Current transformer requirements for overcurrent protection For reliable and correct operation of the overcurrent protection, the CT has to be chosen carefully. The distortion of the secondary current of a saturated CT may endanger the operation, selectivity, and co-ordination of protection.
Section 4 1MAC807603-MB A Requirements for measurement transformers The CT accuracy primary limit current describes the highest fault current magnitude at which the CT fulfils the specified accuracy. Beyond this level, the secondary current of the CT is distorted and it might have severe effects on the performance of the protection relay. In practise, the actual accuracy limit factor (F ) differs from the rated accuracy limit factor ) and is proportional to the ratio of the rated CT burden and the actual CT burden.
Section 4 1MAC807603-MB A Requirements for measurement transformers is the nominal primary current of the CT. The factor 0.7 takes into account the protection relay inaccuracy, current transformer errors, and imperfections of the short circuit calculations. The adequate performance of the CT should be checked when the setting of the high set stage overcurrent protection is defined.
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Section 4 1MAC807603-MB A Requirements for measurement transformers A071142-ANSI V2 EN Figure 119: Example of three-stage overcurrent protection The maximum three-phase fault current is 41.7 kA and the minimum three-phase short circuit current is 22.8 kA. The actual accuracy limit factor of the CT is calculated to be 59. The pickup current setting for low-set stage (51P) is selected to be about twice the nominal current of the cable.
Section 5 1MAC807603-MB A Protection relay's physical connections Section 5 Protection relay's physical connections Inputs 5.1.1 Energizing inputs 5.1.1.1 Phase currents The protection relay can also be used in single or two-phase applications by leaving one or two energizing inputs unoccupied. However, at least terminals X120:7-8 must be connected.
Section 5 1MAC807603-MB A Protection relay's physical connections 5.1.1.4 Ground voltage Table 25: Additional residual voltage input included in configuration D Terminal Description X130:17-18 5.1.1.5 Sensor inputs Table 26: Combi sensor inputs included in configuration E Terminal Description X131 X132 X133 5.1.2 Auxiliary supply voltage input...
Section 5 1MAC807603-MB A Protection relay's physical connections Table 32: Output contacts Terminal Description X100:6 PO1, NO X100:7 PO1, NO X100:8 PO2, NO X100:9 PO2, NO X100:15 PO3, NO (TCM resistor) X100:16 PO3, NO X100:17 PO3, NO X100:18 PO3 (TCM1 input), NO X100:19 PO3 (TCM1 input), NO X100:20...
Section 5 1MAC807603-MB A Protection relay's physical connections Terminal Description X110:17 SO2, common X110:18 SO2, NO X110:19 SO2, NC X110:20 SO3, common X110:21 SO3, NO X110:22 SO3, NC X110:23 SO4, common X110:24 SO4, NO 5.2.3 The IRF contact functions as an output contact for the self-supervision system of the protection relay.
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Section 5 1MAC807603-MB A Protection relay's physical connections single-mode version of protection relay is required if the pilot wire link is used. The fiber optic cable is connected to the X16/LD connector in the protection relay and in Ethernet FX connector in the pilot wire modem. Setting or configuration is not needed with either of the pilot wire modem variants or with the protection relay.
Section 6 1MAC807603-MB A Glossary Section 6 Glossary Analog input ANSI American National Standards Institute ASCII American Standard Code for Information Interchange Binary input Binary input and output Binary output Circuit breaker Current transformer Doubly attached node 1. Direct current 2.
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Section 6 1MAC807603-MB A Glossary IEC 61850-9-2 A communication protocol based on the IEC 61850 standard series IEC 61850-9-2 LE Lite Edition of IEC 61850-9-2 offering process bus interface Intelligent electronic device IEEE 1588 v2 Standard for a Precision Clock Synchronization Protocol for networked measurement and control systems Internet protocol IP address...
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Section 6 1MAC807603-MB A Glossary Single-line diagram SNTP Simple Network Time Protocol Signal output Single-line diagram Simplified notation for representing a three-phase power system. Instead of representing each of three phases with a separate line or terminal, only one conductor is represented.
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