CH579841A5 - - Google Patents

Info

Publication number
CH579841A5
CH579841A5 CH985774A CH985774A CH579841A5 CH 579841 A5 CH579841 A5 CH 579841A5 CH 985774 A CH985774 A CH 985774A CH 985774 A CH985774 A CH 985774A CH 579841 A5 CH579841 A5 CH 579841A5
Authority
CH
Switzerland
Application number
CH985774A
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 DE19732339932 external-priority patent/DE2339932C3/en
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of CH579841A5 publication Critical patent/CH579841A5/xx

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
    • H02H3/38—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 both voltage and current; responsive to phase angle between voltage and current
    • 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
    • H02H1/046—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 upon detecting saturation of current transformers
    • 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
    • H02H3/38—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 both voltage and current; responsive to phase angle between voltage and current
    • H02H3/382—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 both voltage and current; responsive to phase angle between voltage and current involving phase comparison between current and voltage or between values derived from current and voltage

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Locating Faults (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
CH985774A 1973-08-03 1974-07-17 CH579841A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732339932 DE2339932C3 (en) 1973-08-03 Method for determining errors on a line section to be monitored of an electrical power supply network

Publications (1)

Publication Number Publication Date
CH579841A5 true CH579841A5 (en) 1976-09-15

Family

ID=5889108

Family Applications (1)

Application Number Title Priority Date Filing Date
CH985774A CH579841A5 (en) 1973-08-03 1974-07-17

Country Status (6)

Country Link
JP (1) JPS5044437A (en)
CH (1) CH579841A5 (en)
FR (1) FR2239791A1 (en)
IT (1) IT1017429B (en)
NL (1) NL7410001A (en)
SE (1) SE392006B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3167445D1 (en) * 1980-07-28 1985-01-10 Bbc Brown Boveri & Cie Method and apparatus for the differential protection of electrical installations
DE3274171D1 (en) * 1982-03-29 1986-12-11 Bbc Brown Boveri & Cie Method and device for evaluating the secondary current of a current transformer primary connected to an electric power supply line
FR2550024B1 (en) * 1983-07-25 1986-03-14 Electricite De France CURRENT OVERCURRENT PROTECTION DEVICE
DE19723422C1 (en) * 1997-06-04 1998-12-10 Siemens Ag Method and device for detecting and correcting a saturated current profile of a current transformer

Also Published As

Publication number Publication date
NL7410001A (en) 1975-02-05
FR2239791A1 (en) 1975-02-28
SE392006B (en) 1977-03-07
SE7409994L (en) 1975-02-04
IT1017429B (en) 1977-07-20
DE2339932B2 (en) 1976-01-22
JPS5044437A (en) 1975-04-21
DE2339932A1 (en) 1975-02-20

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Legal Events

Date Code Title Description
PL Patent ceased