JPS6424332A - Dc breaker - Google Patents

Dc breaker

Info

Publication number
JPS6424332A
JPS6424332A JP17904287A JP17904287A JPS6424332A JP S6424332 A JPS6424332 A JP S6424332A JP 17904287 A JP17904287 A JP 17904287A JP 17904287 A JP17904287 A JP 17904287A JP S6424332 A JPS6424332 A JP S6424332A
Authority
JP
Japan
Prior art keywords
main
electrode
main electrodes
arcing
fixed electrode
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.)
Granted
Application number
JP17904287A
Other languages
Japanese (ja)
Other versions
JPH0682531B2 (en
Inventor
Tatsuji Shiromizu
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP17904287A priority Critical patent/JPH0682531B2/en
Publication of JPS6424332A publication Critical patent/JPS6424332A/en
Publication of JPH0682531B2 publication Critical patent/JPH0682531B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

PURPOSE:To prevent the breaking of a discharge circuit until the commutation is completed reliably synchronously with the opening of a breaking unit and prevent the re-arcing across main electrodes by performing the switch operation with the induction arcing by the inter-main electrode arc generated across the main electrodes of the breaking unit. CONSTITUTION:A breaking unit is formed with a vacuum valve constituted of a main fixed electrode 6 provided on a DC main line 1, a main movable electrode 7 which is arranged to face this main fixed electrode 6 and separable from it, and an auxiliary electrode 8 arranged between these main electrodes 6, 7 coaxially with the main electrodes via a gap. A serial connection body of a commutation capacitor 3 and a reactor 4 is connected between the main fixed electrode 6 and the auxiliary fixed electrode 8, and the commutation capacitor 3 is discharged by the induction arcing across the main electrodes 6, 7 and the auxiliary fixed electrode 8 via the inter-main electrode arc 9 generated when the main electrodes 6, 7 are separated. The breaking of a discharge circuit is prevented until the commutation is completed reliably synchronously with the opening of the breaking unit 2a, and the re-arcing across the main electrodes 6, 7 is prevented.
JP17904287A 1987-07-20 1987-07-20 DC circuit breaker Expired - Fee Related JPH0682531B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17904287A JPH0682531B2 (en) 1987-07-20 1987-07-20 DC circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17904287A JPH0682531B2 (en) 1987-07-20 1987-07-20 DC circuit breaker

Publications (2)

Publication Number Publication Date
JPS6424332A true JPS6424332A (en) 1989-01-26
JPH0682531B2 JPH0682531B2 (en) 1994-10-19

Family

ID=16059104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17904287A Expired - Fee Related JPH0682531B2 (en) 1987-07-20 1987-07-20 DC circuit breaker

Country Status (1)

Country Link
JP (1) JPH0682531B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5464954A (en) * 1992-08-31 1995-11-07 Idec Izumi Corporation Safety switch assembly
WO2021190666A1 (en) * 2020-04-03 2021-09-30 郭桥石 Arc extinguishing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5464954A (en) * 1992-08-31 1995-11-07 Idec Izumi Corporation Safety switch assembly
WO2021190666A1 (en) * 2020-04-03 2021-09-30 郭桥石 Arc extinguishing device

Also Published As

Publication number Publication date
JPH0682531B2 (en) 1994-10-19

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees