GB732054A - Improvements relating to the protection of electric current transformers - Google Patents

Improvements relating to the protection of electric current transformers

Info

Publication number
GB732054A
GB732054A GB1165852A GB1165852A GB732054A GB 732054 A GB732054 A GB 732054A GB 1165852 A GB1165852 A GB 1165852A GB 1165852 A GB1165852 A GB 1165852A GB 732054 A GB732054 A GB 732054A
Authority
GB
United Kingdom
Prior art keywords
winding
relay
protective
impedance
auxiliary circuit
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
GB1165852A
Inventor
Bertie Withers
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB1165852A priority Critical patent/GB732054A/en
Publication of GB732054A publication Critical patent/GB732054A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

732,054. Protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO., Ltd. May 7, 1953 [May 8, 1952], No. 11658/52. Class 38 (5). A protective arrangement for a liquid - immersed current transformer has a protective relay 17 with its operating winding connected in an auxiliary circuit to which a voltage is applied, at 16, the auxiliary circuit including a high-impedance winding 13, the impedance of which is adapted to be changed by the operation of a gas-actuated relay 9 so that the resulting current change in the auxiliary circuit effects the operation of the protective relay 17. The high-impedance winding 13 is carried on a core embracing either the primary winding 4 of the transformer or, as shown, an additional primary winding 14 lightly insulated from but connected to the winding 4, and the gasactuated relay 9 short-circuits the winding 4 or 14 as the case may be. Specifications 470,966, 673,800, [Group XXXV], and 686,943 are referred to.
GB1165852A 1952-05-08 1952-05-08 Improvements relating to the protection of electric current transformers Expired GB732054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1165852A GB732054A (en) 1952-05-08 1952-05-08 Improvements relating to the protection of electric current transformers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1165852A GB732054A (en) 1952-05-08 1952-05-08 Improvements relating to the protection of electric current transformers

Publications (1)

Publication Number Publication Date
GB732054A true GB732054A (en) 1955-06-15

Family

ID=9990294

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1165852A Expired GB732054A (en) 1952-05-08 1952-05-08 Improvements relating to the protection of electric current transformers

Country Status (1)

Country Link
GB (1) GB732054A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015062633A1 (en) * 2013-10-29 2015-05-07 Siemens Ag Österreich Transformer or inductor comprising a protective device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015062633A1 (en) * 2013-10-29 2015-05-07 Siemens Ag Österreich Transformer or inductor comprising a protective device

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