DK142664C - FAULT POWER PROTECTION SWITCH - Google Patents

FAULT POWER PROTECTION SWITCH

Info

Publication number
DK142664C
DK142664C DK408471A DK408471A DK142664C DK 142664 C DK142664 C DK 142664C DK 408471 A DK408471 A DK 408471A DK 408471 A DK408471 A DK 408471A DK 142664 C DK142664 C DK 142664C
Authority
DK
Denmark
Prior art keywords
protection switch
power protection
fault power
fault
switch
Prior art date
Application number
DK408471A
Other languages
Danish (da)
Other versions
DK142664B (en
Inventor
H Roesch
Original Assignee
Siemens Ag
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 claimed from DE19702044302 external-priority patent/DE2044302B2/en
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of DK142664B publication Critical patent/DK142664B/en
Application granted granted Critical
Publication of DK142664C publication Critical patent/DK142664C/en

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
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/25—Magnetic cores made from strips or ribbons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • 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
    • H02H3/332—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 with means responsive to dc component in the fault current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Protection Of Transformers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Generators And Motors (AREA)
DK408471A 1970-09-08 1971-08-20 FAULT POWER PROTECTION SWITCH DK142664C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19702044302 DE2044302B2 (en) 1970-09-08 1970-09-08 Residual current circuit breaker
DE2044302 1970-09-08
DE2062694A DE2062694B2 (en) 1970-09-08 1970-12-19 Residual current circuit breaker
DE2062694 1970-12-19

Publications (2)

Publication Number Publication Date
DK142664B DK142664B (en) 1980-12-08
DK142664C true DK142664C (en) 1981-09-14

Family

ID=25759694

Family Applications (1)

Application Number Title Priority Date Filing Date
DK408471A DK142664C (en) 1970-09-08 1971-08-20 FAULT POWER PROTECTION SWITCH

Country Status (8)

Country Link
JP (2) JPS476429A (en)
AT (1) AT315949B (en)
BE (1) BE847794Q (en)
CH (1) CH538773A (en)
DE (1) DE2062694B2 (en)
DK (1) DK142664C (en)
FR (1) FR2106374B1 (en)
GB (1) GB1369817A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU78600A1 (en) * 1977-11-28 1979-06-13 Gath N Fault current protection switch
US4366520A (en) * 1981-03-25 1982-12-28 Magnetic Metals Corporation Differential transformer core for pulse currents
FR2520164A1 (en) * 1982-01-19 1983-07-22 Merlin Gerin OWN CURRENT DIFFERENTIAL TRIGGERING DEVICE
DE3202320A1 (en) * 1982-01-26 1983-07-28 Siemens AG, 1000 Berlin und 8000 München Fault current protection switch that responds to fault currents with direct current components
DE3244670A1 (en) * 1982-12-02 1984-06-07 Siemens AG, 1000 Berlin und 8000 München Fault current protection switch
US4622846A (en) * 1985-11-05 1986-11-18 Halliburton Company Consistency and static gel strength measuring device and method
FR2653610B1 (en) * 1989-10-25 1991-12-27 Etude Realisa Disjoncteurs SELECTIVE DIFFERENTIAL SWITCH WITH FAULT CURRENT.
DE19907320C2 (en) * 1999-02-20 2001-03-08 Aloys Wobben Toroidal core and its use
FR2993058B1 (en) * 2012-07-05 2014-08-08 Hager Electro Sas DEVICE FOR DIFFERENTIAL PROTECTION.
KR102539688B1 (en) * 2016-04-28 2023-06-07 엘에스일렉트릭(주) Leakage Current Detector
CN107658092B (en) * 2016-07-25 2020-06-05 施耐德电气工业公司 Ferrite core, current transformer and earth leakage protection switch
CN112955989A (en) * 2018-11-08 2021-06-11 Tdk株式会社 Electromagnetic induction type power generation device

Also Published As

Publication number Publication date
CH538773A (en) 1973-06-30
FR2106374A1 (en) 1972-05-05
AT315949B (en) 1974-06-25
JPS476429A (en) 1972-04-10
BE847794Q (en) 1977-02-14
DE2062694A1 (en) 1972-06-29
FR2106374B1 (en) 1976-04-30
JPS4712829A (en) 1972-06-28
DE2062694B2 (en) 1975-05-28
GB1369817A (en) 1974-10-09
DK142664B (en) 1980-12-08

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Legal Events

Date Code Title Description
PBP Patent lapsed