GB1521082A - Power circuit interrupter - Google Patents

Power circuit interrupter

Info

Publication number
GB1521082A
GB1521082A GB27489/75A GB2748975A GB1521082A GB 1521082 A GB1521082 A GB 1521082A GB 27489/75 A GB27489/75 A GB 27489/75A GB 2748975 A GB2748975 A GB 2748975A GB 1521082 A GB1521082 A GB 1521082A
Authority
GB
United Kingdom
Prior art keywords
armature
spring
power circuit
contact carrier
circuit interrupter
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
GB27489/75A
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.)
Schneider Electric USA Inc
Original Assignee
Square D Co
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 Square D Co filed Critical Square D Co
Publication of GB1521082A publication Critical patent/GB1521082A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
    • 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)
  • Breakers (AREA)

Abstract

1521082 Electric circuit-breakers SQUARE D CO 30 June 1975 [5 July 1974] 27489/75 Heading H1N [Also in Division H2] A circuit-breaker whose contacts 23, 24 remain closed only so long as a pivoted armature 5 is attracted to a magnetic core 2 by current in an operating coil 1 comprises a first spring 7 arranged to rotate the armature away from the core when the attraction ceases, thereby disengaging a flange 26 on the armature from a lip 25 on a contact carrier 17 so that a second spring 13, 18 can raise the contact carrier, pivoting it on a stop 22, to open the contacts. A slidable resetting button 27 is provided.
GB27489/75A 1974-07-05 1975-06-30 Power circuit interrupter Expired GB1521082A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48604574A 1974-07-05 1974-07-05

Publications (1)

Publication Number Publication Date
GB1521082A true GB1521082A (en) 1978-08-09

Family

ID=23930390

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27489/75A Expired GB1521082A (en) 1974-07-05 1975-06-30 Power circuit interrupter

Country Status (6)

Country Link
CA (1) CA1058739A (en)
DE (1) DE2529713A1 (en)
FR (1) FR2277429A1 (en)
GB (1) GB1521082A (en)
IT (1) IT1036450B (en)
ZA (1) ZA754168B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5144516A (en) * 1991-02-04 1992-09-01 Wing Shing Products Company, Ltd. Leakage current circuit interrupter device
NO304860B1 (en) * 1991-07-22 1999-02-22 Pdl Holdings Ltd A switching mechanism

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3555360A (en) * 1969-03-20 1971-01-12 Hubbell Inc Harvey Phase controlled ground fault circuit interrupter

Also Published As

Publication number Publication date
FR2277429A1 (en) 1976-01-30
IT1036450B (en) 1979-10-30
CA1058739A (en) 1979-07-17
ZA754168B (en) 1976-06-30
DE2529713A1 (en) 1976-01-22
FR2277429B1 (en) 1981-05-29
DE2529713C2 (en) 1987-10-22

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Legal Events

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

Effective date: 19940630