DE3173448D1 - High-power electric circuit breaker with a hydraulically operated actuating device - Google Patents

High-power electric circuit breaker with a hydraulically operated actuating device

Info

Publication number
DE3173448D1
DE3173448D1 DE8181107195T DE3173448T DE3173448D1 DE 3173448 D1 DE3173448 D1 DE 3173448D1 DE 8181107195 T DE8181107195 T DE 8181107195T DE 3173448 T DE3173448 T DE 3173448T DE 3173448 D1 DE3173448 D1 DE 3173448D1
Authority
DE
Germany
Prior art keywords
valve body
valve
extension
biased
differential piston
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
DE8181107195T
Other languages
German (de)
Inventor
Rudolf Brunner
Siegfried Zenker
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.)
Heilmeier and Weinlein Fabrik fuer Oel Hydraulik GmbH and Co KG
Original Assignee
Heilmeier and Weinlein Fabrik fuer Oel Hydraulik GmbH and Co KG
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 Heilmeier and Weinlein Fabrik fuer Oel Hydraulik GmbH and Co KG filed Critical Heilmeier and Weinlein Fabrik fuer Oel Hydraulik GmbH and Co KG
Application granted granted Critical
Publication of DE3173448D1 publication Critical patent/DE3173448D1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H33/34—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator hydraulic
    • 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
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H2033/308—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator comprising control and pilot valves

Landscapes

  • Multiple-Way Valves (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

1. A high power switch (2) including a hydraulic differential piston actuator (3) adapted to be continually biased in the opening direction of the switch by a high pressure source (38, 39) and to be selectively biased in the closing direction through a 2/3 way poppet valve (1a) comprising a valve body (46) disposed in a housing bore of said poppet valve for reciprocating movement between a first closure position (I) in which said differential piston actuator (3) is biased in the closing direction, and a second closure position (II) in which said differential piston actuator (3) is biased in the opening direction, and having two spaced sealing surfaces (44, 45) alternately engageable with one of two valve seats (42, 43) of equal diameter disposed between a passage (A) connected to the differential piston actuator (3), a return passage (R), and a pressure inlet (P), the two ends of said valve body (46) being provided with first and second piston-shaped extensions (50, 51) projecting into respective control chambers (52, 53), further including two alternately operable auxiliary control valves (8, 9) for displacing said valve body (46) between the two closure positions (I + II), and at least one guiding and sealing section (47) formed on said valve body (46) and extending between said first extension (50) and the sealing surface (44) cooperating with said valve seat (42) located between said return passage (R) and said passage (A) whilst being sealingly guided in said housing bore, characterized in that the control chamber (53) receiving said second extension (51) is in continual and direct communication with said high pressure source (38, 39), in that both auxiliary control valves (8, 9) are associated with the other control chamber (52), in that said valve body (46) has a further guiding and sealing section (48) adjacent its end associates with said pressure inlet (P), the diameter (D) of said section being equal to the diameter (D) of said valve seats (42, 43), and in that the pressure-receiving surface area of said second extension (51) is smaller that the pressure-receiving surface area of said first extension (50).
DE8181107195T 1981-09-11 1981-09-11 High-power electric circuit breaker with a hydraulically operated actuating device Expired DE3173448D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81107195A EP0074419B1 (en) 1981-09-11 1981-09-11 High-power electric circuit breaker with a hydraulically operated actuating device

Publications (1)

Publication Number Publication Date
DE3173448D1 true DE3173448D1 (en) 1986-02-20

Family

ID=8187903

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181107195T Expired DE3173448D1 (en) 1981-09-11 1981-09-11 High-power electric circuit breaker with a hydraulically operated actuating device

Country Status (3)

Country Link
EP (1) EP0074419B1 (en)
AT (1) ATE17413T1 (en)
DE (1) DE3173448D1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8300760U1 (en) * 1983-01-13 1984-11-08 Beringer-Hydraulik GmbH, Neuheim, Zug Reversing seat valve
DE3601877C1 (en) * 1986-01-23 1987-06-04 Licentia Gmbh Drive for high-voltage circuit breakers
DE20116920U1 (en) * 2001-10-15 2002-01-03 Heilmeier & Weinlein Seat valve for the differential cylinder of an electrical disconnector
EP2282065B1 (en) 2009-07-30 2012-05-16 HAWE Hydraulik SE Hydraulic switching valve and circuit breaker device
JP2015041555A (en) * 2013-08-23 2015-03-02 株式会社日立製作所 Fluid pressure driving device for circuit breaker
CN105003478A (en) * 2015-06-30 2015-10-28 河南平高电气股份有限公司 Control valve and circuit breaker hydraulic operating mechanism using control valve

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2213244A1 (en) * 1972-03-18 1973-09-27 Bbc Brown Boveri & Cie HYDRAULIC SWITCH-OVER SEAT VALVE OR CONTROLLED NON-RETURN VALVE
DE7240231U (en) * 1972-10-02 1974-07-18 Bbc Ag Hydraulic switching valve
JPS6028082B2 (en) * 1977-07-20 1985-07-03 株式会社日立製作所 Fluid pressure drive device
DE3004599A1 (en) * 1980-02-08 1981-08-13 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt MAIN VALVE CONTROL FOR A HIGH VOLTAGE CIRCUIT BREAKER

Also Published As

Publication number Publication date
EP0074419B1 (en) 1986-01-08
EP0074419A1 (en) 1983-03-23
ATE17413T1 (en) 1986-01-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee