DE3463321D1 - Device for the interruption of currents - Google Patents

Device for the interruption of currents

Info

Publication number
DE3463321D1
DE3463321D1 DE8484112088T DE3463321T DE3463321D1 DE 3463321 D1 DE3463321 D1 DE 3463321D1 DE 8484112088 T DE8484112088 T DE 8484112088T DE 3463321 T DE3463321 T DE 3463321T DE 3463321 D1 DE3463321 D1 DE 3463321D1
Authority
DE
Germany
Prior art keywords
current
phase
zero
phases
difference
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
DE8484112088T
Other languages
German (de)
Inventor
Masatoshi Nakazimi
Tadashi Dipl Ing Morita
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Corporate Research and Development Ltd
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 Fuji Electric Corporate Research and Development Ltd filed Critical Fuji Electric Corporate Research and Development Ltd
Application granted granted Critical
Publication of DE3463321D1 publication Critical patent/DE3463321D1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/56—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle
    • H01H9/563—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle for multipolar switches, e.g. different timing for different phases, selecting phase with first zero-crossing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/006—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means adapted for interrupting fault currents with delayed zero crossings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Keying Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

1. A current-interruption arrangement, preferably short-circuit currents, in three-phase networks (R, S, T), wherein the current of one phase (T) does not pass through zero initially, separate switches being controlled by a current detection device (3-8) having zero current transit detection devices (3) for the phases, characterised in that the current detection device (3-8) in each case detects that (S) of the phases (R, S) passing through zero, wherein the difference of the adjacent time intervals (C-D, D-G) defined by three consecutive zero transitions (C, D, G) is greater than in the case of the other phase (R) and the phase (S), in which the difference is greater, interrupts first.
DE8484112088T 1983-10-11 1984-10-09 Device for the interruption of currents Expired DE3463321D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58189658A JPS6082016A (en) 1983-10-11 1983-10-11 3-phase shortcircuit current interrupting method

Publications (1)

Publication Number Publication Date
DE3463321D1 true DE3463321D1 (en) 1987-05-27

Family

ID=16244999

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484112088T Expired DE3463321D1 (en) 1983-10-11 1984-10-09 Device for the interruption of currents

Country Status (4)

Country Link
EP (1) EP0142022B1 (en)
JP (1) JPS6082016A (en)
AT (1) ATE26773T1 (en)
DE (1) DE3463321D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2660842B2 (en) * 1988-02-23 1997-10-08 株式会社明電舎 Overvoltage protection device for vacuum switchgear
JP5159075B2 (en) * 2006-09-25 2013-03-06 株式会社東芝 Circuit breaker switching control device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1563656A1 (en) * 1966-01-26 1970-02-19 Siemens Ag Circuit breaker protection
SE338092B (en) * 1968-03-15 1971-08-30 Asea Ab
JPS57101514A (en) * 1980-12-15 1982-06-24 Tokyo Shibaura Electric Co Defect current breaking system

Also Published As

Publication number Publication date
EP0142022B1 (en) 1987-04-22
JPH053206B2 (en) 1993-01-14
JPS6082016A (en) 1985-05-10
ATE26773T1 (en) 1987-05-15
EP0142022A1 (en) 1985-05-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: FUCHS, F., DR.-ING., PAT.-ANW., 8000 MUENCHEN

8339 Ceased/non-payment of the annual fee