DE2731453C3 - Erdschlußdetektor - Google Patents

Erdschlußdetektor

Info

Publication number
DE2731453C3
DE2731453C3 DE2731453A DE2731453A DE2731453C3 DE 2731453 C3 DE2731453 C3 DE 2731453C3 DE 2731453 A DE2731453 A DE 2731453A DE 2731453 A DE2731453 A DE 2731453A DE 2731453 C3 DE2731453 C3 DE 2731453C3
Authority
DE
Germany
Prior art keywords
switch
detector
earth fault
signal
input
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
DE2731453A
Other languages
German (de)
English (en)
Other versions
DE2731453B2 (de
DE2731453A1 (de
Inventor
Otto Heinrich North Caldwell N.J. Schade Jun. (V.St.A.)
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of DE2731453A1 publication Critical patent/DE2731453A1/de
Publication of DE2731453B2 publication Critical patent/DE2731453B2/de
Application granted granted Critical
Publication of DE2731453C3 publication Critical patent/DE2731453C3/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145—Indicating the presence of current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • 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
    • H02H3/32—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • H02H3/337—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers avoiding disconnection due to reactive fault currents

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Emergency Protection Circuit Devices (AREA)
DE2731453A 1976-07-12 1977-07-12 Erdschlußdetektor Expired DE2731453C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/704,323 US4080641A (en) 1976-07-12 1976-07-12 Ground fault detector

Publications (3)

Publication Number Publication Date
DE2731453A1 DE2731453A1 (de) 1978-02-09
DE2731453B2 DE2731453B2 (de) 1979-06-13
DE2731453C3 true DE2731453C3 (de) 1980-02-14

Family

ID=24828999

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2731453A Expired DE2731453C3 (de) 1976-07-12 1977-07-12 Erdschlußdetektor

Country Status (6)

Country Link
US (1) US4080641A (US20080293856A1-20081127-C00150.png)
JP (1) JPS5310040A (US20080293856A1-20081127-C00150.png)
CA (1) CA1083672A (US20080293856A1-20081127-C00150.png)
DE (1) DE2731453C3 (US20080293856A1-20081127-C00150.png)
FR (1) FR2358663A1 (US20080293856A1-20081127-C00150.png)
GB (1) GB1585783A (US20080293856A1-20081127-C00150.png)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538179B1 (fr) * 1982-12-21 1985-10-04 Merlin Gerin Declencheur differentiel residuel a detection de variation d'etat
US4520417A (en) * 1983-02-14 1985-05-28 Raychem Corporation Electrical monitoring systems
GB8324442D0 (en) * 1983-09-13 1983-10-12 Matburn Holdings Ltd Electrosurgical system
IE56011B1 (en) * 1985-01-29 1991-03-13 Atreus Enterprises Limited Improved residual current device
GB8512133D0 (en) * 1985-05-14 1985-06-19 Dorman Smith Switchgear Ltd Residual current detector
US4809123A (en) * 1986-04-14 1989-02-28 Isco, Inc. Ground fault detector for high-voltage DC power supplies
GB2251741A (en) * 1991-01-09 1992-07-15 Wellong Trading Ltd Rapid response ground fault circuit interrupter
GB2258095B (en) * 1991-07-26 1995-02-08 Paul Victor Brennan Residual current device
CN109725229B (zh) * 2019-01-04 2023-09-29 中国南方电网有限责任公司超高压输电公司梧州局 一种区分电容性与电阻性瞬时接地故障支路的检测装置及方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787709A (en) * 1971-12-13 1974-01-22 Sci Systems Inc Ground fault-sensitive detector and circuit breaker device
US3852642A (en) * 1972-11-01 1974-12-03 Westinghouse Electric Corp Sensing amplifier and trip circuit particularly for ground fault circuit interrupter
US3953767A (en) * 1974-04-15 1976-04-27 Rca Corporation Ground fault detection apparatus
US3963963A (en) * 1975-04-22 1976-06-15 Rca Corporation Ground-fault detection system

Also Published As

Publication number Publication date
JPS5310040A (en) 1978-01-30
FR2358663A1 (fr) 1978-02-10
CA1083672A (en) 1980-08-12
DE2731453B2 (de) 1979-06-13
US4080641A (en) 1978-03-21
DE2731453A1 (de) 1978-02-09
FR2358663B1 (US20080293856A1-20081127-C00150.png) 1982-01-08
GB1585783A (en) 1981-03-11
JPS5736816B2 (US20080293856A1-20081127-C00150.png) 1982-08-06

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Legal Events

Date Code Title Description
OAP Request for examination filed
OD Request for examination
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee