Application manual, Generator protection REG650, ANSI PDF
Preview Application manual, Generator protection REG650, ANSI
Relion® 650 series Generator protection REG650 ANSI Application Manual Document ID: 1MRK 502 033-UUS Issued: April 2011 Revision: - Product version: 1.1 © Copyright 2011 ABB. All rights reserved 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 or disclosed only in accordance with the terms of such license. Trademarks ABB and Relion are registered trademarks of ABB Group. All other brand or product names mentioned in this document may be trademarks or registered trademarks of their respective holders. Warranty Please inquire about the terms of warranty from your nearest ABB representative. ABB Inc. 940 Main Campus Drive Raleigh, NC 27606, USA Toll Free: 1-800-HELP-365, menu option #8 ABB Inc. 3450 Harvester Road Burlington, ON L7N 3W5, Canada Toll Free: 1-800-HELP-365, menu option #8 ABB Mexico S.A. de C.V. Paseo de las Americas No. 31 Lomas Verdes 3a secc. 53125, Naucalpan, Estado De Mexico, MEXICO Phone: (+1) 440-585-7804, menu option #8 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. In particular, any risks in applications where a system failure and/or product failure would create a risk for harm to property or persons (including but not limited to personal injuries or death) shall be the sole responsibility of the person or entity applying the equipment, and those so responsible are hereby requested to ensure that all measures are taken to exclude or mitigate such risks. This document has been carefully checked by ABB but deviations cannot be completely ruled out. In case any errors are detected, the reader is kindly requested to notify the manufacturer. Other than under explicit contractual commitments, in no event shall ABB be responsible or liable for any loss or damage resulting from the use of this manual or the application of the equipment. 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). 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. The IED is designed in accordance with the international standards of the IEC 60255 series and ANSI C37.90. The DNP protocol implementation in the IED conforms to "DNP3 Intelligent Electronic Device (IED) Certification Procedure Subset Level 2", available at www.dnp.org . Table of contents Table of contents Section 1 Introduction..........................................................................15 This manual............................................................................................15 Intended audience..................................................................................15 Product documentation...........................................................................16 Product documentation set................................................................16 Document revision history.................................................................17 Related documents............................................................................18 Symbols and conventions.......................................................................18 Safety indication symbols..................................................................18 Manual conventions...........................................................................19 Section 2 Application...........................................................................21 REG650 application................................................................................21 Available functions..................................................................................24 Main protection functions...................................................................24 Back-up protection functions.............................................................24 Control and monitoring functions.......................................................25 Designed to communicate.................................................................28 Basic IED functions...........................................................................28 REG650 application examples...............................................................29 Adaptation to different applications...................................................29 Single generator connected via a unit transformer to a High Voltage (HV) system.....................................................................31 Single generator, including the auxiliary transformer, connected via an unit transformer to a High Voltage (HV) system..........................................................................................34 Generating unit, including both generator and unit transformer, connected to a solidly grounded High Voltage (HV) system..................................................................................35 Generating unit, including both generator and unit transformer, connected to a high impedance grounded High Voltage (HV) system.....................................................................37 Functionality table.........................................................................38 Single generator/transformer unit, connected to a solidly grounded High Voltage (HV) system, with redundant protection......................................................................................41 1 Application Manual Table of contents Single generator/transformer unit, connected to a high impedance grounded High Voltage (HV) system, with redundant protection.....................................................................43 Two generators having one three-winding unit transformer, connected to a solidly grounded High Voltage (HV) system, with redundant protection with unit differential protection including the generators...............................................................44 Two generators having one three-winding unit transformer, connected to a solidly grounded High Voltage (HV) system, with redundant protection with unit transformer differential protection......................................................................................45 Functionality table.........................................................................46 Section 3 REG650 setting examples...................................................49 Calculating general settings for analogue TRM inputs 4I 1I 5U..............51 Calculating general settings for analogue AIM inputs 6I 4U...................53 Preprocessing blocks SMAI....................................................................54 Calculating settings for global base values for setting function GBASVAL...............................................................................................55 Calculating settings for generator differential protection GENPDIF (87G).......................................................................................................55 Calculating settings for underimpedance protection for generators and transformers ZGPDIS 21G..............................................................57 Calculating settings for zone 1..........................................................58 Calculating settings for zone 2..........................................................58 Calculating settings for zone 3..........................................................59 Calculating settings for the Load encroachment function..................59 Calculating settings for out-of-step protection OOSPPAM (78)..............61 Calculating settings for loss of excitation LEXPDIS (40)........................66 Negative-sequence time overcurrent protection for machines NS2PTOC (46I2)....................................................................................70 Calculating settings for four step phase overcurrent protection OC4PTOC (51_67).................................................................................71 Calculating settings for generator phase overcurrent protection.......71 Calculating settings for step 1......................................................71 Calculating settings for step 2......................................................72 Calculating settings for auxiliary transformer phase overcurrent protection...........................................................................................72 Calculating settings for step 1......................................................73 Calculating settings for step 4......................................................73 100% Stator ground fault protection, 3rd harmonic based STEFPHIZ 59TDH..................................................................................74 2 Application Manual Table of contents Stator ground fault protection (neutral point voltage)..............................76 Section 4 Analog inputs.......................................................................77 Introduction.............................................................................................77 Setting guidelines...................................................................................77 Setting of the phase reference channel.............................................77 Example........................................................................................77 Setting of current channels...........................................................78 Example 1.....................................................................................78 Example 2.....................................................................................79 Examples how to connect, configure and set CT inputs for most commonly used CT connections..........................................81 Example how to connect wye connected three-phase CT set to the IED................................................................................82 Example how to connect single-phase CT to the IED..................85 Setting of voltage channels..........................................................87 Example........................................................................................87 Examples how to connect, configure and set VT inputs for most commonly used VT connections..........................................88 Examples how to connect three phase-to-ground connected VTs to the IED..............................................................................89 Example how to connect the open delta VT to the IED for high impedance grounded or ungrounded....................................90 Example how to connect the open delta VT to the IED for low impedance grounded or solidly grounded power systems........................................................................................93 Example how to connect the neutral point VT to the IED.............96 Section 5 Local human-machine interface..........................................99 Local HMI................................................................................................99 Display.............................................................................................100 LEDs................................................................................................101 Keypad............................................................................................102 Local HMI functionality....................................................................103 Protection and alarm indication..................................................103 Parameter management ............................................................106 Front communication..................................................................106 Single-line diagram.....................................................................107 Section 6 Differential protection........................................................109 Transformer differential protection T2WPDIF (87T) and T3WPDIF (87T).....................................................................................................109 3 Application Manual Table of contents Identification....................................................................................109 Application.......................................................................................109 Setting guidelines............................................................................110 Inrush restraint methods.............................................................110 Overexcitation restraint method..................................................110 Cross-blocking between phases.................................................111 Restrained and unrestrained differential protection....................111 Elimination of zero sequence currents.......................................113 External/Internal fault discriminator............................................113 Differential current alarm............................................................115 Switch onto fault feature.............................................................115 Setting example...............................................................................116 Summary and conclusions.........................................................116 1Ph High impedance differential protection HZPDIF (87).....................117 Identification....................................................................................117 Application.......................................................................................118 The basics of the high impedance principle...............................118 Connection examples for high impedance differential protection.........................................................................................124 Connections for 1Ph restricted earth fault and high impedance differential protection................................................124 Setting guidelines............................................................................125 Configuration..............................................................................125 Settings of protection function....................................................126 Restricted earth fault protection REF (87N)...............................126 Alarm level operation..................................................................129 Generator differential protection GENPDIF (87G)................................129 Identification....................................................................................130 Application.......................................................................................130 Setting guidelines............................................................................132 General settings.........................................................................132 Percentage restrained differential operation...............................132 Negative sequence internal/external fault discriminator feature........................................................................................134 Other additional options..............................................................135 Open CT detection.....................................................................136 Section 7 Impedance protection........................................................139 Underimpedance protection for generators and transformers ZGPDIS (21G)......................................................................................139 Identification....................................................................................139 4 Application Manual
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