GB2347755B - Electric power system protective and control apparatus with downsized input transformer - Google Patents

Electric power system protective and control apparatus with downsized input transformer

Info

Publication number
GB2347755B
GB2347755B GB9917116A GB9917116A GB2347755B GB 2347755 B GB2347755 B GB 2347755B GB 9917116 A GB9917116 A GB 9917116A GB 9917116 A GB9917116 A GB 9917116A GB 2347755 B GB2347755 B GB 2347755B
Authority
GB
United Kingdom
Prior art keywords
downsized
electric power
control apparatus
power system
input transformer
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
GB9917116A
Other versions
GB2347755A (en
GB9917116D0 (en
Inventor
Hiroshi Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
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 GB9917116D0 publication Critical patent/GB9917116D0/en
Publication of GB2347755A publication Critical patent/GB2347755A/en
Application granted granted Critical
Publication of GB2347755B publication Critical patent/GB2347755B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • 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
    • H02H3/02—Details
    • H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
GB9917116A 1999-03-11 1999-07-21 Electric power system protective and control apparatus with downsized input transformer Expired - Fee Related GB2347755B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11065191A JP2000258469A (en) 1999-03-11 1999-03-11 Electric power system protection and control device

Publications (3)

Publication Number Publication Date
GB9917116D0 GB9917116D0 (en) 1999-09-22
GB2347755A GB2347755A (en) 2000-09-13
GB2347755B true GB2347755B (en) 2001-05-16

Family

ID=13279796

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9917116A Expired - Fee Related GB2347755B (en) 1999-03-11 1999-07-21 Electric power system protective and control apparatus with downsized input transformer

Country Status (3)

Country Link
JP (1) JP2000258469A (en)
FR (1) FR2790881B1 (en)
GB (1) GB2347755B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2388914B (en) * 2002-05-10 2005-09-28 Pri Ltd Clamp-on ct
FI20045078A (en) 2004-03-16 2005-09-17 Myorigo Oy Mobile device with wide-angle optics and radiation sensor
JP4639783B2 (en) * 2004-12-03 2011-02-23 日産自動車株式会社 Infrared detector
EP1701423B1 (en) * 2005-03-03 2012-02-08 Airbus Operations GmbH Arrangement for improving the short circuit withstandability of an appliance by use of a bypass
CN102759651A (en) * 2012-07-27 2012-10-31 成都生辉电子科技有限公司 Industrial voltage measurement structure
CN106451325A (en) * 2016-11-09 2017-02-22 国网天津市电力公司 Protective circuit for microcomputer type relay protection device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3815013A (en) * 1972-06-14 1974-06-04 Gen Electric Current transformer with active load termination
EP0157881A1 (en) * 1983-09-13 1985-10-16 Mitsubishi Denki Kabushiki Kaisha Current detecting circuit
GB2212621A (en) * 1987-11-17 1989-07-26 John Edward Baxendale Underwater electric field sensor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2339856A1 (en) * 1973-08-07 1975-02-13 Teldix Gmbh Electric current measurement - involves isolated current transformer and operational amplifier with variable feed back
US4286214A (en) * 1979-05-07 1981-08-25 General Electric Company Current sensor for phase inversion-modulation of AC signals
AT391230B (en) * 1986-08-20 1990-09-10 Elin Union Ag DEVICE FOR DETECTING THE ZERO TRANSITIONS
EP0825449A1 (en) * 1996-08-19 1998-02-25 Siemens Aktiengesellschaft Current measuring method and device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3815013A (en) * 1972-06-14 1974-06-04 Gen Electric Current transformer with active load termination
EP0157881A1 (en) * 1983-09-13 1985-10-16 Mitsubishi Denki Kabushiki Kaisha Current detecting circuit
GB2212621A (en) * 1987-11-17 1989-07-26 John Edward Baxendale Underwater electric field sensor

Also Published As

Publication number Publication date
FR2790881A1 (en) 2000-09-15
GB2347755A (en) 2000-09-13
GB9917116D0 (en) 1999-09-22
JP2000258469A (en) 2000-09-22
FR2790881B1 (en) 2003-09-26

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 20051024

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20100721