HK182595A - Differential protective relay apparatus - Google Patents

Differential protective relay apparatus

Info

Publication number
HK182595A
HK182595A HK182595A HK182595A HK182595A HK 182595 A HK182595 A HK 182595A HK 182595 A HK182595 A HK 182595A HK 182595 A HK182595 A HK 182595A HK 182595 A HK182595 A HK 182595A
Authority
HK
Hong Kong
Prior art keywords
relay apparatus
protective relay
differential protective
differential
relay
Prior art date
Application number
HK182595A
Other languages
English (en)
Inventor
Makoto Terada
Yosuke Tsujikura
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of HK182595A publication Critical patent/HK182595A/xx

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/28—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
HK182595A 1989-08-30 1995-11-30 Differential protective relay apparatus HK182595A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1224118A JP2676704B2 (ja) 1989-08-30 1989-08-30 差動保護継電装置

Publications (1)

Publication Number Publication Date
HK182595A true HK182595A (en) 1995-12-08

Family

ID=16808824

Family Applications (1)

Application Number Title Priority Date Filing Date
HK182595A HK182595A (en) 1989-08-30 1995-11-30 Differential protective relay apparatus

Country Status (8)

Country Link
US (1) US5095399A (de)
EP (1) EP0415179B1 (de)
JP (1) JP2676704B2 (de)
AU (1) AU642659B2 (de)
BR (1) BR9004278A (de)
CA (1) CA2024351C (de)
DE (1) DE69018344T2 (de)
HK (1) HK182595A (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6356421B1 (en) * 1999-11-29 2002-03-12 Schweitzer Engineering Labs., Inc. System for power transformer differential protection
US20030223167A1 (en) * 2000-12-22 2003-12-04 Udren Eric A. Distributed bus differential relay system
US7701683B2 (en) * 2001-07-06 2010-04-20 Schweitzer Engineering Laboratories, Inc. Apparatus, system, and method for sharing output contacts across multiple relays
US9256232B2 (en) 2009-06-12 2016-02-09 Schweitzer Engineering Laboratories, Inc. Voltage regulation using multiple voltage regulator controllers
US8427131B2 (en) * 2009-06-12 2013-04-23 Schweitzer Engineering Laboratories Inc Voltage regulation at a remote location using measurements from a remote metering device
US8476874B2 (en) * 2009-10-13 2013-07-02 Schweitzer Engineering Laboratories, Inc Systems and methods for synchronized control of electrical power system voltage profiles
CN102200558A (zh) * 2010-03-25 2011-09-28 鸿富锦精密工业（深圳）有限公司 开/关机检测电路
US10393810B2 (en) * 2012-06-06 2019-08-27 Abb Schweiz Ag Method for identifying the fault by current differential protection and device thereof
US8964337B2 (en) 2012-12-28 2015-02-24 General Electric Company Methods and systems for monitoring excitation of a generator based on a faulty status of a generator breaker
CN107884665B (zh) * 2017-11-28 2024-03-08 大唐西北(西安)电力试验研究院有限公司 防止发电机出口电压互感器匝间短路误跳机的装置及方法
US10756531B2 (en) * 2018-03-29 2020-08-25 Hamilton Sunstrand Corporation Voltage differential transducer (VDT) fault detection

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB718815A (en) * 1951-05-01 1954-11-24 Vickers Electrical Co Ltd Improvements in and relating to electrical protective equipment
CH448234A (de) * 1967-03-28 1967-12-15 Oerlikon Maschf Differentialschutzschaltung
DE1956527C3 (de) * 1969-11-11 1973-01-04 Siemens Ag, 1000 Berlin U. 8000 Muenchen Differentialschutzeinrichtung
US3992649A (en) * 1975-02-10 1976-11-16 General Electric Company Current differential fault detection circuit
JPS5144582A (ja) * 1975-08-18 1976-04-16 Mitsubishi Electric Corp Nemachitsukuekishososeibutsu
DE3270515D1 (en) * 1981-12-29 1986-05-15 Mitsubishi Electric Corp Protective relay for power system
JPH07114532B2 (ja) * 1989-01-18 1995-12-06 三菱電機株式会社 差動保護継電装置

Also Published As

Publication number Publication date
AU642659B2 (en) 1993-10-28
CA2024351C (en) 1994-10-11
JPH0386014A (ja) 1991-04-11
BR9004278A (pt) 1991-09-03
US5095399A (en) 1992-03-10
EP0415179B1 (de) 1995-04-05
EP0415179A3 (en) 1991-10-30
DE69018344T2 (de) 1995-11-09
AU6091690A (en) 1991-03-07
CA2024351A1 (en) 1991-03-01
JP2676704B2 (ja) 1997-11-17
DE69018344D1 (de) 1995-05-11
EP0415179A2 (de) 1991-03-06

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20080816