GB491598A - Improvements in or relating to operating mechanism for electric switchgear - Google Patents

Improvements in or relating to operating mechanism for electric switchgear

Info

Publication number
GB491598A
GB491598A GB679137A GB679137A GB491598A GB 491598 A GB491598 A GB 491598A GB 679137 A GB679137 A GB 679137A GB 679137 A GB679137 A GB 679137A GB 491598 A GB491598 A GB 491598A
Authority
GB
United Kingdom
Prior art keywords
rod
latch
piston
rods
held
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
GB679137A
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.)
FREDERICK JOSEPH KEELEY
General Electric Co PLC
Original Assignee
FREDERICK JOSEPH KEELEY
General Electric Co PLC
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 FREDERICK JOSEPH KEELEY, General Electric Co PLC filed Critical FREDERICK JOSEPH KEELEY
Priority to GB679137A priority Critical patent/GB491598A/en
Publication of GB491598A publication Critical patent/GB491598A/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

Abstract

491,598. Actuation of switches. GENERAL ELECTRIC CO., Ltd., and KEELEY, F. J. March 8, 1937, No. 6791. [Class 38 (v)] Actuating mechanisn comprises a cylinder 1 having a piston 5 providec with rods 9 on which are mounted helical compres. sion springs 8 bearing on a cross-head 6 having a rod 7 for operating switch gear, not shown. The admission of fluid under pressure through a pipe 4 causes piston 5 to move downwards and compress springs 8, but rod 7 is held by a latch 12 until a member 13 on one of the rods 9 completes at 14 the tripping circuit for latch 12 and the rod 7 moves rapidly downwards to operate the switch. The contacts 13, 14 may merely close an indicating circuit, the tripping circuit then being closed at a control board. In a modification, the rod 7 is held by an overset toggle, and a further latch is provided for holding the piston in the operated position.
GB679137A 1937-03-08 1937-03-08 Improvements in or relating to operating mechanism for electric switchgear Expired GB491598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB679137A GB491598A (en) 1937-03-08 1937-03-08 Improvements in or relating to operating mechanism for electric switchgear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB679137A GB491598A (en) 1937-03-08 1937-03-08 Improvements in or relating to operating mechanism for electric switchgear

Publications (1)

Publication Number Publication Date
GB491598A true GB491598A (en) 1938-09-06

Family

ID=9820817

Family Applications (1)

Application Number Title Priority Date Filing Date
GB679137A Expired GB491598A (en) 1937-03-08 1937-03-08 Improvements in or relating to operating mechanism for electric switchgear

Country Status (1)

Country Link
GB (1) GB491598A (en)

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