GB500763A - Improvements in and relating to methods of tap changing under load - Google Patents

Improvements in and relating to methods of tap changing under load

Info

Publication number
GB500763A
GB500763A GB1686/38A GB168638A GB500763A GB 500763 A GB500763 A GB 500763A GB 1686/38 A GB1686/38 A GB 1686/38A GB 168638 A GB168638 A GB 168638A GB 500763 A GB500763 A GB 500763A
Authority
GB
United Kingdom
Prior art keywords
tap
circuit breaker
switch
circuits
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
GB1686/38A
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 GB500763A publication Critical patent/GB500763A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

500,763. Transformers ; automatic control systems. BRITISH THOMSONHOUSTON CO., Ltd. Jan. 18, 1938, No. 1686. Convention date, Jan. 21, 1937. [Classes 38 (ii) and 38 (iv)] Electromotive force.-In an on-load transformer tap changing arrangement comprising a tapped winding 4 with which engages a pair of contact circuits 8, 9 and a selector switch 11, a circuit breaker 15 is connected between the circuits 8, 9 to relieve the switch 11 of the duty of breaking the load current. To effect tap change, the switch 11 is moved to break connection between one of the circuits (9 e.g.) and the line 5, the circuit remaining completed through the circuit breaker 15. The circuit breaker is then opened and the tap connection 9 to the transformer can then be moved to the next tapping after which the circuit breaker is closed and the switch 11 returned to normal position. A similar sequence is gone through to move the tap connection of the circuit 8 to the same tap position. Interlinked chokes 21 are provided to reduce the circulating current when the circuits 8, 9 are connected to different taps. The tap adjusting mechanism 6, the switch 11 and the circuit breaker 15 may be mechanically coupled and operated by a reversible capacitor motor 20, under the control of a contact making voltmeter 22.
GB1686/38A 1937-01-21 1938-01-18 Improvements in and relating to methods of tap changing under load Expired GB500763A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US121619A US2112064A (en) 1937-01-21 1937-01-21 Method and apparatus for transformer tap changing under load

Publications (1)

Publication Number Publication Date
GB500763A true GB500763A (en) 1939-02-15

Family

ID=22397811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1686/38A Expired GB500763A (en) 1937-01-21 1938-01-18 Improvements in and relating to methods of tap changing under load

Country Status (2)

Country Link
US (1) US2112064A (en)
GB (1) GB500763A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2307567A (en) * 1994-10-27 1997-05-28 Seec Densetsu Kk Load tap changing AC voltage regulator

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3206580A (en) * 1962-08-28 1965-09-14 Gen Electric Fluid immersed tap changing switching system for transformers
US3206569A (en) * 1964-12-17 1965-09-14 Orin P Mccarty Protective means for transformer tap changer
US3340370A (en) * 1966-01-10 1967-09-05 Louis H Sideleau Anti-theft device for motor vehicles
US4860145A (en) * 1983-11-14 1989-08-22 Oneac Corporation Tap switching protection circuit
EP2264729A1 (en) * 2009-06-18 2010-12-22 ABB Technology Ltd Method and device for detecting failure of a vacuum interrupter of an on load tap changer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2307567A (en) * 1994-10-27 1997-05-28 Seec Densetsu Kk Load tap changing AC voltage regulator

Also Published As

Publication number Publication date
US2112064A (en) 1938-03-22

Similar Documents

Publication Publication Date Title
US4301489A (en) Arcless tap changer utilizing static switching
GB1340356A (en) Electrical transformer with tap changer system
US4363060A (en) Arcless tap changer for voltage regulator
GB500763A (en) Improvements in and relating to methods of tap changing under load
GB1164782A (en) Arrangement for and Method Of On-Load Tap-Changing in Tapped Transformers
US2078667A (en) Automatic control system for phase-advancing means
US2180193A (en) Electric circuit
US2449367A (en) Tapped transformer system
US2875399A (en) Means for protecting transition impedances
GB546437A (en) Improvements in tap-changing circuits for electric transformers
SE7605062L (en) SWITCH DEVICE FOR LOAD SWITCHES IN WINDING SWITCHES FOR CONTROL TRANSFORMERS
GB394618A (en) Improvements in tap changing gear for electric transformers and the like
GB1172312A (en) Control Device for Tapped Transformers
US2004998A (en) Transformer tap changing mechanisms
GB273678A (en) Improvements in and relating to transformer voltage regulating systems
CN209199864U (en) A kind of bimodulus breaker
GB562742A (en) Improvements in and relating to tap changing switches
GB313559A (en) Improvements in or relating to regulating transformers
JPS584181Y2 (en) On-load voltage regulator
GB662499A (en) Improvements relating to on-load tap-changing circuits particularly for transformers
GB462773A (en) An improved device for the periodic opening or closing of electric circuits
GB1267284A (en) Three-phase transformer with tap changer
GB424408A (en) Improvements in and relating to transformer tap changing arrangements
GB1174579A (en) Improvements in or relating to Tapchanging Circuit Arrangements
GB368978A (en) Improvements relating to control apparatus such as contactors and circuit breakers for alternating and direct electric current systems