GB1187447A - A Tap Changing Apparatus for an Electric Winding - Google Patents

A Tap Changing Apparatus for an Electric Winding

Info

Publication number
GB1187447A
GB1187447A GB29321/67A GB2932167A GB1187447A GB 1187447 A GB1187447 A GB 1187447A GB 29321/67 A GB29321/67 A GB 29321/67A GB 2932167 A GB2932167 A GB 2932167A GB 1187447 A GB1187447 A GB 1187447A
Authority
GB
United Kingdom
Prior art keywords
contacts
spring
switch
open
pressure
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
GB29321/67A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1187447A publication Critical patent/GB1187447A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0038—Tap change devices making use of vacuum switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current

Abstract

1,187,447. Vacuum switches; transformers. GENERAL ELECTRIC CO. 26 June, 1967 [5 Aug., 1966], No. 29321/67. Headings H1N and H1T. A tap changing apparatus includes a vacuum switch 26 which is arranged so that an increase in pressure within the switch envelope 50, e.g. due to entry of insulating liquid, causes the switch to maintain its contacts open. As shown, a lost motion connection is provided by a cage 63 mounted on an actuating rod 60, a contact pressure spring 62 and a shoulder 64 on the movable contact carrying rod 55. A spring 58 tends to open the vacuum switch contacts 51, 52 and the differential pressure acting on the bellows 57 tends to close the contacts. Should the pressure in the envelope 50 rise, the force acting on the bellows is reduced and the spring 58 is able to move the rod 55 downwards against the bias of the spring 62 to open the switch contacts 51, 52. In an alternative arrangement no contact pressure spring is provided, the closing bias due to the differential pressure acting on the bellows normally exceeding the opening bias of the spring 58. Contacts 80, 81 may be coupled to the contact carrying rod 55 and to the actuating rod 60. In the normal operation of the switch, either the contacts 80 or the contacts 81 are open, but when the pressure rises contacts 80 will be closed when the contacts 81 are closed. This completes a circuit for an indicating lamp 76 and for a relay 72 which opens its contacts 73 in circuit with the drive motor 30 of the tap change operating mechanism 28. These contacts are paralleled by contacts 74 which open only at the end of a tap change cycle of operation.
GB29321/67A 1966-08-05 1967-06-26 A Tap Changing Apparatus for an Electric Winding Expired GB1187447A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57048466A 1966-08-05 1966-08-05

Publications (1)

Publication Number Publication Date
GB1187447A true GB1187447A (en) 1970-04-08

Family

ID=24279826

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29321/67A Expired GB1187447A (en) 1966-08-05 1967-06-26 A Tap Changing Apparatus for an Electric Winding

Country Status (6)

Country Link
US (1) US3472981A (en)
JP (1) JPS4512765B1 (en)
AT (1) AT282772B (en)
BR (1) BR6791240D0 (en)
CH (1) CH470108A (en)
GB (1) GB1187447A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105960694A (en) * 2014-01-28 2016-09-21 赖茵豪森机械制造公司 On-load tap changer according to the reactor switching principle

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5118609B1 (en) * 1968-03-13 1976-06-11
US3571543A (en) * 1968-09-30 1971-03-23 G & W Electric Speciality Co Multiple position vacuum interrupter switching device
US3720867A (en) * 1972-02-04 1973-03-13 Gen Electric Fail safe vacuum type circuit interrupter and associated load current tap changer for electric induction apparatus
US3920941A (en) * 1972-08-10 1975-11-18 Westinghouse Electric Corp Contact-operating mechanism for breaking vacuum interrupter contact-welds by bending action of the movable contact rod
US3819892A (en) * 1972-11-30 1974-06-25 Gen Electric Fail safe vacuum type circuit interrupter and associated load current tap changer for electric induction apparatus
US3814885A (en) * 1973-07-11 1974-06-04 Gen Electric Method of detecting a leak in a vacuum interrupter located inside a housing containing pressurized gas
US3983345A (en) * 1975-01-30 1976-09-28 General Electric Company Method of detecting a leak in any one of the vacuum interrupters of a high voltage circuit breaker
SE394536B (en) * 1975-11-06 1977-06-27 Asea Ab WINDING COUPLER CONTAINING ONE SINGLE VACUUM ELEMENT PER PHASE
EP2535911B1 (en) * 2011-06-15 2017-03-08 ABB Research Ltd. A gearbox for a tap changer, a tap changer and a transformer
US10290436B1 (en) 2013-03-15 2019-05-14 Innovative Switchgear IP, LLC Insulated interrupter
US9576757B2 (en) * 2014-04-11 2017-02-21 S&C Electric Company Circuit interrupters with air trap regions in fluid reservoirs
JP6444699B2 (en) * 2014-11-19 2018-12-26 株式会社東芝 Load tap changer
DE102017215460A1 (en) * 2017-09-04 2019-03-07 Siemens Aktiengesellschaft Arrangement for connection to a high-voltage network with adjustable impedance

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2472625A (en) * 1944-05-23 1949-06-07 Gen Electric Electric circuit breaker
GB834140A (en) * 1957-03-19 1960-05-04 British Thomson Houston Co Ltd Improvements relating to electrical switches or circuit breakers
US3038980A (en) * 1959-12-17 1962-06-12 Gen Electric Vacuum-type circuit interrupter
US3244843A (en) * 1963-10-16 1966-04-05 Jennings Radio Mfg Corp Arc-controlling auxiliary contact assembly for electric switches
US3206569A (en) * 1964-12-17 1965-09-14 Orin P Mccarty Protective means for transformer tap changer
US3404247A (en) * 1966-03-08 1968-10-01 Gen Electric Pressure responsive protective means for vacuum type circuit interrupters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105960694A (en) * 2014-01-28 2016-09-21 赖茵豪森机械制造公司 On-load tap changer according to the reactor switching principle

Also Published As

Publication number Publication date
BR6791240D0 (en) 1973-12-27
US3472981A (en) 1969-10-14
CH470108A (en) 1969-03-15
JPS4512765B1 (en) 1970-05-09
AT282772B (en) 1970-07-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]