GB120775A - Improvements in Alternating Electric Current Protective Devices of the Type adapted to Operate on Reversal of Current. - Google Patents

Improvements in Alternating Electric Current Protective Devices of the Type adapted to Operate on Reversal of Current.

Info

Publication number
GB120775A
GB120775A GB1717217A GB1717217A GB120775A GB 120775 A GB120775 A GB 120775A GB 1717217 A GB1717217 A GB 1717217A GB 1717217 A GB1717217 A GB 1717217A GB 120775 A GB120775 A GB 120775A
Authority
GB
United Kingdom
Prior art keywords
current
winding
reversal
operate
alternating electric
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
GB1717217A
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 GB1717217A priority Critical patent/GB120775A/en
Publication of GB120775A publication Critical patent/GB120775A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/003—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to reversal of power transmission direction

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

120,775. British Thomson - Houston Co., and Wedmore, E. B. Nov. 21, 1917. Cut-out arrangements; alternating-current relays.-In alternating-current reverse relays having current windings e and potential windings c inductively related so that reversal of current produces movement in the winding c, in order to improve the action with excessive currents, a compensating winding g inductively related to the current winding is connected in parallel with the main potential winding instead of in series therewith as described in Specification 110,247. An adjustable resistance h is connected in series with the compensating winding for current setting.
GB1717217A 1917-11-21 1917-11-21 Improvements in Alternating Electric Current Protective Devices of the Type adapted to Operate on Reversal of Current. Expired GB120775A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1717217A GB120775A (en) 1917-11-21 1917-11-21 Improvements in Alternating Electric Current Protective Devices of the Type adapted to Operate on Reversal of Current.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1717217A GB120775A (en) 1917-11-21 1917-11-21 Improvements in Alternating Electric Current Protective Devices of the Type adapted to Operate on Reversal of Current.

Publications (1)

Publication Number Publication Date
GB120775A true GB120775A (en) 1918-11-21

Family

ID=32347462

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1717217A Expired GB120775A (en) 1917-11-21 1917-11-21 Improvements in Alternating Electric Current Protective Devices of the Type adapted to Operate on Reversal of Current.

Country Status (1)

Country Link
GB (1) GB120775A (en)

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