ZA881688B - A differential hydraulic jack for the control of electric circuit-breakers - Google Patents

A differential hydraulic jack for the control of electric circuit-breakers

Info

Publication number
ZA881688B
ZA881688B ZA881688A ZA881688A ZA881688B ZA 881688 B ZA881688 B ZA 881688B ZA 881688 A ZA881688 A ZA 881688A ZA 881688 A ZA881688 A ZA 881688A ZA 881688 B ZA881688 B ZA 881688B
Authority
ZA
South Africa
Prior art keywords
cylinder
breakers
piston
control
electric circuit
Prior art date
Application number
ZA881688A
Other languages
English (en)
Inventor
Claude Alain Gratzmuller
Original Assignee
Gratzmuller C A
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 Gratzmuller C A filed Critical Gratzmuller C A
Publication of ZA881688B publication Critical patent/ZA881688B/xx

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Retarders (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Reciprocating Pumps (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Lift Valve (AREA)
  • Fluid-Driven Valves (AREA)
  • Vehicle Body Suspensions (AREA)
  • Control Of Fluid Gearings (AREA)
  • Percussive Tools And Related Accessories (AREA)
ZA881688A 1987-03-25 1988-03-09 A differential hydraulic jack for the control of electric circuit-breakers ZA881688B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8704134A FR2613122B1 (fr) 1987-03-25 1987-03-25 Verin hydraulique differentiel pour la commande de disjoncteurs electriques

Publications (1)

Publication Number Publication Date
ZA881688B true ZA881688B (en) 1988-09-06

Family

ID=9349407

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA881688A ZA881688B (en) 1987-03-25 1988-03-09 A differential hydraulic jack for the control of electric circuit-breakers

Country Status (17)

Country Link
EP (1) EP0284482B1 (enrdf_load_stackoverflow)
JP (1) JP2593909B2 (enrdf_load_stackoverflow)
KR (1) KR920006522B1 (enrdf_load_stackoverflow)
CN (1) CN1008652B (enrdf_load_stackoverflow)
AT (1) ATE71471T1 (enrdf_load_stackoverflow)
AU (1) AU599217B2 (enrdf_load_stackoverflow)
BR (1) BR8801365A (enrdf_load_stackoverflow)
CA (1) CA1319728C (enrdf_load_stackoverflow)
DE (1) DE3867514D1 (enrdf_load_stackoverflow)
ES (1) ES2028314T3 (enrdf_load_stackoverflow)
FI (1) FI881400A7 (enrdf_load_stackoverflow)
FR (1) FR2613122B1 (enrdf_load_stackoverflow)
HU (1) HU204328B (enrdf_load_stackoverflow)
IN (1) IN170378B (enrdf_load_stackoverflow)
SU (1) SU1644724A3 (enrdf_load_stackoverflow)
YU (1) YU47464B (enrdf_load_stackoverflow)
ZA (1) ZA881688B (enrdf_load_stackoverflow)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1070266B (enrdf_load_stackoverflow) * 1958-06-04
FR1312751A (fr) * 1961-01-24 1962-12-21 Coq Nv Perfectionnements apportés aux interrupteurs électriques avec rupture pneumatique du courant
US3155009A (en) * 1961-08-03 1964-11-03 Gen Dynamics Corp High energy actuator apparatus
FR1378068A (fr) * 1963-07-24 1964-11-13 Merlin Gerin Perfectionnement aux dispositifs de commande hydraulique, notamment pour interrupteurs électriques
DE1282131B (de) * 1965-01-29 1968-11-07 Siemens Ag Elektrischer Schalter
FR2317532A1 (fr) * 1975-07-07 1977-02-04 Gratzmuller Jean Louis Verin hydraulique a amortisseur incorpore avec realimentation de la chambre d'amortissement
US4166937A (en) * 1978-05-18 1979-09-04 General Electric Company Hydraulically-activated operating system for an electric circuit breaker
JPS5598464U (enrdf_load_stackoverflow) * 1978-12-27 1980-07-09
JPS5693227A (en) * 1979-12-27 1981-07-28 Hitachi Ltd Hydraulic driving unit
JPS56153627A (en) * 1980-04-28 1981-11-27 Meidensha Electric Mfg Co Ltd Oil pressure operating device
JPS59109044U (ja) * 1983-01-12 1984-07-23 株式会社東芝 しや断器の液圧操作装置
JPS61161627A (ja) * 1985-01-08 1986-07-22 三菱電機株式会社 液圧式操作装置
JPH0795416B2 (ja) * 1986-02-26 1995-10-11 株式会社東芝 液圧操作装置
US4785712A (en) * 1986-05-27 1988-11-22 Mitsubishi Denki Kabushiki Kaisha Hydraulic operating apparatus for electric circuit breaker

Also Published As

Publication number Publication date
AU599217B2 (en) 1990-07-12
YU47464B (sh) 1995-10-03
FI881400L (fi) 1988-09-26
FR2613122B1 (fr) 1989-06-23
KR880011481A (ko) 1988-10-28
EP0284482A1 (fr) 1988-09-28
EP0284482B1 (fr) 1992-01-08
CN1008652B (zh) 1990-07-04
HUT48331A (en) 1989-05-29
FI881400A0 (fi) 1988-03-24
IN170378B (enrdf_load_stackoverflow) 1992-03-21
CN88101589A (zh) 1988-10-12
AU1351588A (en) 1988-09-29
CA1319728C (en) 1993-06-29
ATE71471T1 (de) 1992-01-15
BR8801365A (pt) 1988-11-01
HU204328B (en) 1991-12-30
KR920006522B1 (ko) 1992-08-07
YU55288A (en) 1990-04-30
JPS63254623A (ja) 1988-10-21
JP2593909B2 (ja) 1997-03-26
DE3867514D1 (de) 1992-02-20
FR2613122A1 (fr) 1988-09-30
FI881400A7 (fi) 1988-09-26
ES2028314T3 (es) 1992-07-01
SU1644724A3 (ru) 1991-04-23

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