GB672312A - Arrangements for controlling electric circuit breaker groups having two or more poles - Google Patents

Arrangements for controlling electric circuit breaker groups having two or more poles

Info

Publication number
GB672312A
GB672312A GB33013/49A GB3301349A GB672312A GB 672312 A GB672312 A GB 672312A GB 33013/49 A GB33013/49 A GB 33013/49A GB 3301349 A GB3301349 A GB 3301349A GB 672312 A GB672312 A GB 672312A
Authority
GB
United Kingdom
Prior art keywords
valves
gas
poles
pole
opening
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
GB33013/49A
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.)
BBC Brown Boveri AG Germany
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie AG Germany
BBC Brown Boveri France SA
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 Brown Boveri und Cie AG Germany, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Germany
Publication of GB672312A publication Critical patent/GB672312A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B23/00—Equipment for handling lifeboats or the like
    • B63B23/02—Davits, i.e. devices having arms for lowering boats by cables or the like
    • B63B23/04—Davits, i.e. devices having arms for lowering boats by cables or the like with arms pivoting on substantially horizontal axes, e.g. gravity type
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

672,312. Fluid-blast circuit-breakers. AKT.- GES. BROWN, BOVERI, & CIE. Dec. 23, 1949. [Dec. 24, 1948] No. 33013/49. Class 38(v). In a gas-blast or other circuit-breaker wherein each pole is separately actuated by electrically remote-controlled valves b1... b3, the poles .are additionally coupled by a pneumatic system which ensures the opening of all poles, if one or more fails to open or close. The main valves b1 ... b3 each supply operating and arc-extinguishing gas, and are operated by control valves d1 ... d3 having operating solenoids p1 ... p3. Pipes f1 ... f3 connect the contact chambers a1 ... a3 or the contact sides of valves d1 ... d3 to a control apparatus g, which has three valves i1 ... i3 normally spring-biased to the upper position. If an opening order is given but the pole a, fails to open, the pressure in pipes f1, f2 keeps valves i1, i2, in their upper position but the gas moves valve f3 to its lower position, Fig. 3. Gas thus passes into pipe h and to pistons e1 ... e3 so as to open the control valve of the faulty pole. Gas also passes through a pipe n' to the left-hand side of a piston k1, and through an opening o to the right-hand side of a piston k11 so that an indicator m is moved to the "faulty" position F. When all the poles are open, the indicator is in position A, and when all are closed, it is in position E. A time element q in the pipe h delays the opening of the poles to allow for a single-phase fault causing the opening of one pole clearing on reclosure. One or more of the contacts of each pole may be hollow, and liquid may be used instead of gas. The supply of gas to valves i1 ... i3 may be controlled by valves located on the switch poles and controlled in dependence on the, contact position.
GB33013/49A 1948-12-24 1949-12-23 Arrangements for controlling electric circuit breaker groups having two or more poles Expired GB672312A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH672312X 1948-12-24

Publications (1)

Publication Number Publication Date
GB672312A true GB672312A (en) 1952-05-21

Family

ID=4527775

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33013/49A Expired GB672312A (en) 1948-12-24 1949-12-23 Arrangements for controlling electric circuit breaker groups having two or more poles

Country Status (4)

Country Link
DE (1) DE825714C (en)
FR (1) FR1114258A (en)
GB (1) GB672312A (en)
NL (1) NL91107C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1158610B (en) * 1959-09-26 1963-12-05 Sachsenwerk Licht & Kraft Ag Device for indicating that electrical switchgear is ready to be switched

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE730681C (en) * 1939-09-06 1943-01-15 Aeg High-voltage switch, which can carry out two different types of switching processes, especially for the purpose of relaying errors in line systems
US2390966A (en) * 1940-12-21 1945-12-11 Ite Circuit Breaker Ltd Air blast circuit breaker and control therefor

Also Published As

Publication number Publication date
NL91107C (en)
FR1114258A (en) 1956-04-10
DE825714C (en) 1951-12-20

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