GB1475923A - Detection of faults in multi-hase electrical distribution systems - Google Patents

Detection of faults in multi-hase electrical distribution systems

Info

Publication number
GB1475923A
GB1475923A GB2392674A GB2392674A GB1475923A GB 1475923 A GB1475923 A GB 1475923A GB 2392674 A GB2392674 A GB 2392674A GB 2392674 A GB2392674 A GB 2392674A GB 1475923 A GB1475923 A GB 1475923A
Authority
GB
United Kingdom
Prior art keywords
section
choke
switch
distribution systems
sectionalized
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
GB2392674A
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.)
Elektrotehnicki Inst Poduzeca
Original Assignee
Elektrotehnicki Inst Poduzeca
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 Elektrotehnicki Inst Poduzeca filed Critical Elektrotehnicki Inst Poduzeca
Publication of GB1475923A publication Critical patent/GB1475923A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

1475923 Protecting sectionalized distribution systems ELEKTROTEHNICKI INSTITUT PODUZECA "RADE KONCAR" 30 May 1974 [18 Sept 1973] 23926/74 Heading H2K In a polyphase, sectionalized distribution system, when a fault detector at the beginning of one section senses the passage of a fault current it signals this fact to the fault detector in the preceding section by connecting a choke 2 between two of the phase conductors. When the current transformers 1 associated with the upper section in Fig. 3 detect a fault current they change over contacts 21, 22, thereby (i) connecting a choke 2 between two phases on the upstream side of the section switch S a to signal to the preceding section. and (ii) connecting a sensing circuit 10 to the two phases on the downstream side of switch S a to detect whether the choke 2<SP>1</SP> of the next section has been switched in. The switch S a is controlled in dependence on the output of this sensing circuit. Provision is made for earth leakage protection as well, but the details are unclear.
GB2392674A 1973-09-18 1974-05-30 Detection of faults in multi-hase electrical distribution systems Expired GB1475923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
YU247073A YU35408B (en) 1973-09-18 1973-09-18 System arrangement for an automatic selection of an earth-connection and a short-circuit

Publications (1)

Publication Number Publication Date
GB1475923A true GB1475923A (en) 1977-06-10

Family

ID=25558047

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2392674A Expired GB1475923A (en) 1973-09-18 1974-05-30 Detection of faults in multi-hase electrical distribution systems

Country Status (3)

Country Link
DE (1) DE2427861C2 (en)
GB (1) GB1475923A (en)
YU (1) YU35408B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT384358B (en) * 1985-04-29 1987-11-10 Hill Thomas DEVICE FOR DETECTING HIGH-FREQUENCY ERROR CURRENTS

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1280971B (en) * 1965-01-07 1968-10-24 Horst Bender Protection device for electrical networks or systems
DE1513305C3 (en) * 1965-08-13 1974-01-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Network protection device

Also Published As

Publication number Publication date
DE2427861C2 (en) 1983-12-22
YU35408B (en) 1980-12-31
YU247073A (en) 1980-06-30
DE2427861A1 (en) 1975-04-24

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Legal Events

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