GB2065394B - Apparatus for sensing short circuit faults - Google Patents

Apparatus for sensing short circuit faults

Info

Publication number
GB2065394B
GB2065394B GB7939141A GB7939141A GB2065394B GB 2065394 B GB2065394 B GB 2065394B GB 7939141 A GB7939141 A GB 7939141A GB 7939141 A GB7939141 A GB 7939141A GB 2065394 B GB2065394 B GB 2065394B
Authority
GB
United Kingdom
Prior art keywords
short circuit
circuit faults
sensing short
sensing
faults
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
Application number
GB7939141A
Other versions
GB2065394A (en
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.)
National Research Development Corp UK
National Research Development Corp of India
Original Assignee
National Research Development Corp UK
National Research Development Corp of India
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 National Research Development Corp UK, National Research Development Corp of India filed Critical National Research Development Corp UK
Priority to GB7939141A priority Critical patent/GB2065394B/en
Priority to ZA00812829A priority patent/ZA812829B/en
Priority to AU70098/81A priority patent/AU7009881A/en
Publication of GB2065394A publication Critical patent/GB2065394A/en
Application granted granted Critical
Publication of GB2065394B publication Critical patent/GB2065394B/en
Expired legal-status Critical Current

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
    • H02H3/38—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 both voltage and current; responsive to phase angle between voltage and current
    • H02H3/382—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 both voltage and current; responsive to phase angle between voltage and current involving phase comparison between current and voltage or between values derived from current and voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
    • H02H7/0855—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load avoiding response to transient overloads, e.g. during starting
GB7939141A 1979-11-12 1979-11-12 Apparatus for sensing short circuit faults Expired GB2065394B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB7939141A GB2065394B (en) 1979-11-12 1979-11-12 Apparatus for sensing short circuit faults
ZA00812829A ZA812829B (en) 1979-11-12 1981-04-29 Apparatus for sensing short circult faults
AU70098/81A AU7009881A (en) 1979-11-12 1981-05-04 Sensing short circuit faults

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB7939141A GB2065394B (en) 1979-11-12 1979-11-12 Apparatus for sensing short circuit faults
ZA00812829A ZA812829B (en) 1979-11-12 1981-04-29 Apparatus for sensing short circult faults
AU70098/81A AU7009881A (en) 1979-11-12 1981-05-04 Sensing short circuit faults

Publications (2)

Publication Number Publication Date
GB2065394A GB2065394A (en) 1981-06-24
GB2065394B true GB2065394B (en) 1983-08-17

Family

ID=27155842

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7939141A Expired GB2065394B (en) 1979-11-12 1979-11-12 Apparatus for sensing short circuit faults

Country Status (3)

Country Link
AU (1) AU7009881A (en)
GB (1) GB2065394B (en)
ZA (1) ZA812829B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19741662C2 (en) * 1997-09-16 2001-03-08 Wiktor Silbermann Procedure for fully selective reserve protection in cable networks
GB2395377B (en) * 2002-11-13 2006-02-01 Frdx Ltd Fault detection apparatus and method
CN102012474A (en) * 2010-09-20 2011-04-13 陶作存 Interphase short circuit pre-detection process for coal mine high voltage and low voltage power lines
CN102324723B (en) * 2011-09-21 2014-04-09 山东一统电器有限公司 Flameproof phase-sensitive short circuit protection feed switch and working method thereof
KR20200089059A (en) * 2019-01-16 2020-07-24 삼성전기주식회사 Apparatus and method for detecting wiring short of substrate

Also Published As

Publication number Publication date
GB2065394A (en) 1981-06-24
AU7009881A (en) 1982-11-11
ZA812829B (en) 1982-04-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921112