GB1545600A - Circuit breakers - Google Patents

Circuit breakers

Info

Publication number
GB1545600A
GB1545600A GB4337176A GB4337176A GB1545600A GB 1545600 A GB1545600 A GB 1545600A GB 4337176 A GB4337176 A GB 4337176A GB 4337176 A GB4337176 A GB 4337176A GB 1545600 A GB1545600 A GB 1545600A
Authority
GB
United Kingdom
Prior art keywords
circuit breakers
breakers
circuit
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
GB4337176A
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.)
B & R Relays Ltd
Original Assignee
B & R Relays 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
Application filed by B & R Relays Ltd filed Critical B & R Relays Ltd
Priority to GB4337176A priority Critical patent/GB1545600A/en
Publication of GB1545600A publication Critical patent/GB1545600A/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)
GB4337176A 1977-09-29 1977-09-29 Circuit breakers Expired GB1545600A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4337176A GB1545600A (en) 1977-09-29 1977-09-29 Circuit breakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4337176A GB1545600A (en) 1977-09-29 1977-09-29 Circuit breakers

Publications (1)

Publication Number Publication Date
GB1545600A true GB1545600A (en) 1979-05-10

Family

ID=10428480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4337176A Expired GB1545600A (en) 1977-09-29 1977-09-29 Circuit breakers

Country Status (1)

Country Link
GB (1) GB1545600A (en)

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Legal Events

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