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GB2110016B - Detector for electric earth-leakage currents, and method of detecting such currents - Google Patents

Detector for electric earth-leakage currents, and method of detecting such currents

Info

Publication number
GB2110016B
GB2110016B GB08217569A GB8217569A GB2110016B GB 2110016 B GB2110016 B GB 2110016B GB 08217569 A GB08217569 A GB 08217569A GB 8217569 A GB8217569 A GB 8217569A GB 2110016 B GB2110016 B GB 2110016B
Authority
GB
United Kingdom
Prior art keywords
currents
detector
detecting
electric earth
leakage
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
GB08217569A
Other versions
GB2110016A (en
Inventor
Ernest Campbell Bartle
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Priority to GB08217569A priority Critical patent/GB2110016B/en
Publication of GB2110016A publication Critical patent/GB2110016A/en
Application granted granted Critical
Publication of GB2110016B publication Critical patent/GB2110016B/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
    • H02H3/26—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
GB08217569A 1981-06-18 1982-06-17 Detector for electric earth-leakage currents, and method of detecting such currents Expired GB2110016B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08217569A GB2110016B (en) 1981-06-18 1982-06-17 Detector for electric earth-leakage currents, and method of detecting such currents

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8118855 1981-06-18
GB08217569A GB2110016B (en) 1981-06-18 1982-06-17 Detector for electric earth-leakage currents, and method of detecting such currents

Publications (2)

Publication Number Publication Date
GB2110016A GB2110016A (en) 1983-06-08
GB2110016B true GB2110016B (en) 1984-08-30

Family

ID=26279843

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08217569A Expired GB2110016B (en) 1981-06-18 1982-06-17 Detector for electric earth-leakage currents, and method of detecting such currents

Country Status (1)

Country Link
GB (1) GB2110016B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3478655D1 (en) * 1983-03-23 1989-07-13 Mitsubishi Electric Corp Apparatus for detecting ground fault in variable-voltage variable-frequency power system
DE19622409A1 (en) * 1996-06-04 1997-12-11 Kopp Heinrich Ag Residual current circuit breaker
CN100429851C (en) * 2006-08-24 2008-10-29 上海复旦微电子股份有限公司 Input detection circuit for leakage protection device with self-diagnosis function

Also Published As

Publication number Publication date
GB2110016A (en) 1983-06-08

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Legal Events

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