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AU7009881A - Sensing short circuit faults - Google Patents

Sensing short circuit faults

Info

Publication number
AU7009881A
AU7009881A AU70098/81A AU7009881A AU7009881A AU 7009881 A AU7009881 A AU 7009881A AU 70098/81 A AU70098/81 A AU 70098/81A AU 7009881 A AU7009881 A AU 7009881A AU 7009881 A AU7009881 A AU 7009881A
Authority
AU
Australia
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.)
Abandoned
Application number
AU70098/81A
Inventor
Harold Lord
Frank Keith Pearson
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
Original Assignee
NAT RES DEV
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
Priority to GB7939141A priority Critical patent/GB2065394B/en
Priority to ZA00812829A priority patent/ZA812829B/en
Application filed by NAT RES DEV filed Critical NAT RES DEV
Priority to AU70098/81A priority patent/AU7009881A/en
Publication of AU7009881A publication Critical patent/AU7009881A/en
Abandoned 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
AU70098/81A 1979-11-12 1981-05-04 Sensing short circuit faults Abandoned AU7009881A (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 (1)

Publication Number Publication Date
AU7009881A true AU7009881A (en) 1982-11-11

Family

ID=27155842

Family Applications (1)

Application Number Title Priority Date Filing Date
AU70098/81A Abandoned AU7009881A (en) 1979-11-12 1981-05-04 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 (6)

* 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
KR102691314B1 (en) * 2019-01-16 2024-08-05 삼성전기주식회사 Apparatus and method for detecting wiring short of substrate
CN113131434A (en) * 2021-04-26 2021-07-16 特码斯派克工业技术(安徽)有限公司 Long-distance short-circuit protection device and judgment method for coal mine feeder switch

Also Published As

Publication number Publication date
ZA812829B (en) 1982-04-28
GB2065394A (en) 1981-06-24
GB2065394B (en) 1983-08-17

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