GB1010828A - Improvements relating to earth leakage protection - Google Patents

Improvements relating to earth leakage protection

Info

Publication number
GB1010828A
GB1010828A GB3781362A GB3781362A GB1010828A GB 1010828 A GB1010828 A GB 1010828A GB 3781362 A GB3781362 A GB 3781362A GB 3781362 A GB3781362 A GB 3781362A GB 1010828 A GB1010828 A GB 1010828A
Authority
GB
United Kingdom
Prior art keywords
impedance
transistor
relay
circuit
voltage
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
GB3781362A
Other languages
English (en)
Inventor
Harold Townley Baldwin
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.)
Baldwin & Francis Ltd
Original Assignee
Baldwin & Francis Ltd
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 BE638257D priority Critical patent/BE638257A/xx
Priority to NL298831D priority patent/NL298831A/xx
Application filed by Baldwin & Francis Ltd filed Critical Baldwin & Francis Ltd
Priority to GB3781362A priority patent/GB1010828A/en
Priority to FR949409A priority patent/FR1372151A/fr
Publication of GB1010828A publication Critical patent/GB1010828A/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
    • H02H3/16—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 fault current to earth, frame or mass
    • H02H3/17—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 fault current to earth, frame or mass by means of an auxiliary voltage injected into the installation to be protected

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
GB3781362A 1962-10-05 1962-10-05 Improvements relating to earth leakage protection Expired GB1010828A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE638257D BE638257A (en:Method) 1962-10-05
NL298831D NL298831A (en:Method) 1962-10-05
GB3781362A GB1010828A (en) 1962-10-05 1962-10-05 Improvements relating to earth leakage protection
FR949409A FR1372151A (fr) 1962-10-05 1963-10-03 Dispositif de protection contre les fuites à la terre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3781362A GB1010828A (en) 1962-10-05 1962-10-05 Improvements relating to earth leakage protection

Publications (1)

Publication Number Publication Date
GB1010828A true GB1010828A (en) 1965-11-24

Family

ID=10399188

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3781362A Expired GB1010828A (en) 1962-10-05 1962-10-05 Improvements relating to earth leakage protection

Country Status (3)

Country Link
BE (1) BE638257A (en:Method)
GB (1) GB1010828A (en:Method)
NL (1) NL298831A (en:Method)

Also Published As

Publication number Publication date
NL298831A (en:Method)
BE638257A (en:Method)

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