GB1295130A - - Google Patents

Info

Publication number
GB1295130A
GB1295130A GB1295130DA GB1295130A GB 1295130 A GB1295130 A GB 1295130A GB 1295130D A GB1295130D A GB 1295130DA GB 1295130 A GB1295130 A GB 1295130A
Authority
GB
United Kingdom
Prior art keywords
capacitor
transistor
conducts
relay
load
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
Other languages
English (en)
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 filed Critical
Publication of GB1295130A publication Critical patent/GB1295130A/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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Relay Circuits (AREA)
GB1295130D 1970-07-08 1970-07-08 Expired GB1295130A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3312270 1970-07-08

Publications (1)

Publication Number Publication Date
GB1295130A true GB1295130A (zh) 1972-11-01

Family

ID=10348853

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1295130D Expired GB1295130A (zh) 1970-07-08 1970-07-08

Country Status (1)

Country Link
GB (1) GB1295130A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131239A (en) * 1982-09-10 1984-06-13 Matsushita Electric Works Ltd Current detecting device
GB2152308A (en) * 1983-12-23 1985-07-31 Matsushita Electric Ind Co Ltd A fault detection apparatus for an air conditioner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131239A (en) * 1982-09-10 1984-06-13 Matsushita Electric Works Ltd Current detecting device
GB2152308A (en) * 1983-12-23 1985-07-31 Matsushita Electric Ind Co Ltd A fault detection apparatus for an air conditioner

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees