GB508004A - Improvements in and relating to electro-responsive devices - Google Patents

Improvements in and relating to electro-responsive devices

Info

Publication number
GB508004A
GB508004A GB32147/37A GB3214737A GB508004A GB 508004 A GB508004 A GB 508004A GB 32147/37 A GB32147/37 A GB 32147/37A GB 3214737 A GB3214737 A GB 3214737A GB 508004 A GB508004 A GB 508004A
Authority
GB
United Kingdom
Prior art keywords
salients
windings
nov
operates
magnetic material
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
GB32147/37A
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
Publication of GB508004A publication Critical patent/GB508004A/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
    • H02H3/42—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 product of voltage and current
    • H02H3/427—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 product of voltage and current using induction relays

Landscapes

  • Synchronous Machinery (AREA)

Abstract

508,004. Dynamo - electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 22, 1937, No. 32147. Convention date, Nov. 21, 1936. [Class 35] [Also in Group XXXVII] A protective relay or like device for polyphase systems, which operates, for example, when there is an interphase or earth fault, or responds to polyphase power against predetermined voltage restraint or to zero phase sequence flow, comprises a magnetic stator 15 with a plurality of radially-projecting salients or poles 161, 162 ... 166 carrying energizing windings 17, a rotary current-conducting member 19 which operates the relay contacts, an inner fixed member 18 of magnetic material and a frame member 21 of magnetic material to provide a shunt flux path for the residual flux from the salients. Fig. 3 shows a device with six salients energized by three-phase quantities 1, 2, 3, arranged so that normally the rotating field produced by the windings on the salients 161, 163, 165 is equal and opposite to the rotating field produced by the windings on the salients 162, 164, 166. Specification 508,005, [Group XXXVII], is referred to.
GB32147/37A 1936-11-21 1937-11-22 Improvements in and relating to electro-responsive devices Expired GB508004A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US508004XA 1936-11-21 1936-11-21

Publications (1)

Publication Number Publication Date
GB508004A true GB508004A (en) 1939-06-22

Family

ID=21967503

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32147/37A Expired GB508004A (en) 1936-11-21 1937-11-22 Improvements in and relating to electro-responsive devices

Country Status (1)

Country Link
GB (1) GB508004A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240664A (en) * 1990-01-20 1991-08-07 Smith & Nephew Locating bobbin windings on stator
GB2242073A (en) * 1990-01-20 1991-09-18 Smith & Nephew Stator coil assembly for electric motors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240664A (en) * 1990-01-20 1991-08-07 Smith & Nephew Locating bobbin windings on stator
GB2242073A (en) * 1990-01-20 1991-09-18 Smith & Nephew Stator coil assembly for electric motors

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