ES351371A1 - Electric circuit breakers - Google Patents

Electric circuit breakers

Info

Publication number
ES351371A1
ES351371A1 ES351371A ES351371A ES351371A1 ES 351371 A1 ES351371 A1 ES 351371A1 ES 351371 A ES351371 A ES 351371A ES 351371 A ES351371 A ES 351371A ES 351371 A1 ES351371 A1 ES 351371A1
Authority
ES
Spain
Prior art keywords
contact
latch
trip mechanism
trip
contact arm
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
ES351371A
Other languages
Spanish (es)
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Publication of ES351371A1 publication Critical patent/ES351371A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/42—Induction-motor, induced-current, or electrodynamic release mechanisms
    • H01H71/43—Electrodynamic release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/222—Power arrangements internal to the switch for operating the driving mechanism using electrodynamic repulsion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/0253—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch two co-operating contacts actuated independently

Landscapes

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

Abstract

An overload current, which will operate, e.g. the conventional electromagnetic trip mechanism 18 of a circuit-breaker and thereby release its moving contact arm 6 by means of a latch 12, also causes operation of sensitive quick-acting switching means (such as a sensitive relay, thyratron or thyristor) which serves to discharge a previously charged capacitor (not shown) through an electromagnetic coil 30 which then repels a copper ring 32 on a rod 26 secured to " fast " contact 2 to break the contacts 2, 4 before the conventional trip mechanism 18 acts. The operating mechanism 10, which applies a closing force to contact 4 until tripping, is that of Specification 934,210, and the latch 12 is that of Specification 849,658. Contact 2 is restored by its spring 38, or is latched in its open position by balls 54 pressed into a tapering aperture between the rod 26A and a hole 50A by a light spring 56, Fig. 2. Contact arm 6, in moving " slow " contact 4 to its contacts-open position, releases this ball latch by striking a pin 60 on a link 62. The opening of contact 2 may be utilized to trip the latch 12 of contact arm 6, Fig. 3 (not shown), and trip mechanism 18 is then dispensed with.
ES351371A 1967-03-09 1968-03-08 Electric circuit breakers Expired ES351371A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11070/67A GB1145959A (en) 1967-03-09 1967-03-09 Improvements relating to electric circuit breakers

Publications (1)

Publication Number Publication Date
ES351371A1 true ES351371A1 (en) 1969-06-01

Family

ID=9979454

Family Applications (1)

Application Number Title Priority Date Filing Date
ES351371A Expired ES351371A1 (en) 1967-03-09 1968-03-08 Electric circuit breakers

Country Status (8)

Country Link
US (1) US3546641A (en)
BE (1) BE711942A (en)
DE (1) DE1613974A1 (en)
ES (1) ES351371A1 (en)
FR (1) FR1555375A (en)
GB (1) GB1145959A (en)
NL (1) NL6803145A (en)
SE (1) SE326751B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH608131A5 (en) * 1975-08-26 1978-12-15 Merlin Gerin
FR2357048A1 (en) * 1976-06-28 1978-01-27 Merlin Gerin Current limiting switch - has movable contact connected to actuator by one way gears fitted with shock absorber
FR2512268A1 (en) * 1981-08-27 1983-03-04 Merlin Gerin Fast action electrical switch using Thomson effect - has movable assembly set to positively bring locking controller to inactive position during travel to circuit closure
FR2837619B1 (en) * 2002-03-22 2004-06-25 Schneider Electric Ind Sa HIGH-SPEED LIMIT SWITCHING ELECTRICAL APPARATUS

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1818801A (en) * 1929-05-25 1931-08-11 Gen Electric High speed circuit interrupter
FR740568A (en) * 1932-07-28 1933-01-27 Telemecanique Electrique Electromagnetic contactor with accelerated cut-off
US2486104A (en) * 1942-07-28 1949-10-25 Ite Circuit Breaker Ltd Circuit breaker
US3127488A (en) * 1960-07-18 1964-03-31 Ite Circuit Breaker Ltd Current limiting circuit breaker having both contacts movable
DE1158607B (en) * 1962-05-03 1963-12-05 Siemens Ag Control system for synchronous switch with holding magnet
US3178533A (en) * 1963-04-03 1965-04-13 Hi G Inc Resettable plunger switch assembly
US3384845A (en) * 1966-11-23 1968-05-21 Gen Electric Current-limiting electric circuit breaker

Also Published As

Publication number Publication date
FR1555375A (en) 1969-01-24
DE1613974A1 (en) 1971-06-03
SE326751B (en) 1970-08-03
US3546641A (en) 1970-12-08
GB1145959A (en) 1969-03-19
BE711942A (en) 1968-07-15
NL6803145A (en) 1968-09-10

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