GB1007496A - Improvements relating to transformer tap-changing - Google Patents

Improvements relating to transformer tap-changing

Info

Publication number
GB1007496A
GB1007496A GB4404662A GB4404662A GB1007496A GB 1007496 A GB1007496 A GB 1007496A GB 4404662 A GB4404662 A GB 4404662A GB 4404662 A GB4404662 A GB 4404662A GB 1007496 A GB1007496 A GB 1007496A
Authority
GB
United Kingdom
Prior art keywords
pair
thyristors
rectifiers
activate
changing
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
GB4404662A
Inventor
John Charles Milne
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.)
ELECTRIC CONSTRUCTION CO
Original Assignee
ELECTRIC CONSTRUCTION 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 ELECTRIC CONSTRUCTION CO filed Critical ELECTRIC CONSTRUCTION CO
Priority to GB4404662A priority Critical patent/GB1007496A/en
Publication of GB1007496A publication Critical patent/GB1007496A/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)
  • Rectifiers (AREA)

Abstract

1,007,496. Transformers. ELECTRIC CONSTRUCTION CO. Ltd. Feb. 21, 1964 [Nov. 21, 1962], No. 44046/62. Heading H1T. [Also in Division H3] A power transformer comprises a tapped secondary winding in which a permanent connection is made from each of the tapping points A1, A2, A3 ... (Fig. 1), to the output by a pair of rectifiers A1F, A1R; A2F, A2R; A3F, A3R . . . respectively connected in inverse parallel, the tappings being controlled by a circuit (Fig. 3, not shown), which is adjusted to activate one selected pair of rectifiers in sequence at or following the current zeros in the secondary windings. Fig. 1 shows secondary windings A, B, C of a multiphase transformer in which a pair of thyristors is connected to each tapping point. The control circuit (Fig. 3, not shown), provides pulses to activate the control electrodes of a selected pair of thyristors in each winding (see Division H3).
GB4404662A 1962-11-21 1962-11-21 Improvements relating to transformer tap-changing Expired GB1007496A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4404662A GB1007496A (en) 1962-11-21 1962-11-21 Improvements relating to transformer tap-changing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4404662A GB1007496A (en) 1962-11-21 1962-11-21 Improvements relating to transformer tap-changing

Publications (1)

Publication Number Publication Date
GB1007496A true GB1007496A (en) 1965-10-13

Family

ID=10431504

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4404662A Expired GB1007496A (en) 1962-11-21 1962-11-21 Improvements relating to transformer tap-changing

Country Status (1)

Country Link
GB (1) GB1007496A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5006784A (en) * 1987-06-25 1991-04-09 Elin-Union Thyristor on-load change-over switch
WO2013167372A1 (en) * 2012-05-10 2013-11-14 Siemens Aktiengesellschaft Secondary distribution network transformer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5006784A (en) * 1987-06-25 1991-04-09 Elin-Union Thyristor on-load change-over switch
WO2013167372A1 (en) * 2012-05-10 2013-11-14 Siemens Aktiengesellschaft Secondary distribution network transformer
CN104272405A (en) * 2012-05-10 2015-01-07 西门子公司 Secondary distribution network transformer

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