CH505391A - Device for monitoring current differences in an electrical system - Google Patents

Device for monitoring current differences in an electrical system

Info

Publication number
CH505391A
CH505391A CH1800968A CH1800968A CH505391A CH 505391 A CH505391 A CH 505391A CH 1800968 A CH1800968 A CH 1800968A CH 1800968 A CH1800968 A CH 1800968A CH 505391 A CH505391 A CH 505391A
Authority
CH
Switzerland
Prior art keywords
electrical system
monitoring current
current differences
differences
monitoring
Prior art date
Application number
CH1800968A
Other languages
German (de)
Inventor
Diemer Fritz Ing Dr
Original Assignee
Weber Ag Fabrik Elektrotechn A
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 Weber Ag Fabrik Elektrotechn A filed Critical Weber Ag Fabrik Elektrotechn A
Priority to CH1800968A priority Critical patent/CH505391A/en
Priority to DE19691960290 priority patent/DE1960290A1/en
Priority to FR6941456A priority patent/FR2025082A1/fr
Priority to NL6918114A priority patent/NL6918114A/xx
Priority to BE742555D priority patent/BE742555A/xx
Priority to CH1344070A priority patent/CH530011A/en
Publication of CH505391A publication Critical patent/CH505391A/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
    • 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
    • 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
    • H01F38/32—Circuit arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
CH1800968A 1968-12-03 1968-12-03 Device for monitoring current differences in an electrical system CH505391A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH1800968A CH505391A (en) 1968-12-03 1968-12-03 Device for monitoring current differences in an electrical system
DE19691960290 DE1960290A1 (en) 1968-12-03 1969-12-02 Device for monitoring current differences in an electrical system
FR6941456A FR2025082A1 (en) 1968-12-03 1969-12-02
NL6918114A NL6918114A (en) 1968-12-03 1969-12-02
BE742555D BE742555A (en) 1968-12-03 1969-12-03
CH1344070A CH530011A (en) 1968-12-03 1970-09-09 Device for monitoring current differences in an electrical system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1800968A CH505391A (en) 1968-12-03 1968-12-03 Device for monitoring current differences in an electrical system

Publications (1)

Publication Number Publication Date
CH505391A true CH505391A (en) 1971-03-31

Family

ID=4429738

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1800968A CH505391A (en) 1968-12-03 1968-12-03 Device for monitoring current differences in an electrical system

Country Status (5)

Country Link
BE (1) BE742555A (en)
CH (1) CH505391A (en)
DE (1) DE1960290A1 (en)
FR (1) FR2025082A1 (en)
NL (1) NL6918114A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321208A1 (en) * 1975-08-11 1977-03-11 Saparel Detection of leakage current to earth - uses differential current transformer whose core is saturated by leakage current
DE2602534A1 (en) * 1976-01-23 1977-07-28 Siemens Ag FAULT CURRENT CIRCUIT BREAKER
LU78600A1 (en) * 1977-11-28 1979-06-13 Gath N Fault current protection switch
LU78992A1 (en) * 1978-02-02 1979-09-06 N Gath FAULT CIRCUIT BREAKER
JPS55127826A (en) * 1979-03-26 1980-10-03 Fuji Electric Co Ltd Leakage breaker

Also Published As

Publication number Publication date
BE742555A (en) 1970-05-14
NL6918114A (en) 1970-06-05
DE1960290A1 (en) 1970-06-18
FR2025082A1 (en) 1970-09-04

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Legal Events

Date Code Title Description
PL Patent ceased