US1745983A - High-voltage electric transformer - Google Patents

High-voltage electric transformer Download PDF

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Publication number
US1745983A
US1745983A US55572A US5557225A US1745983A US 1745983 A US1745983 A US 1745983A US 55572 A US55572 A US 55572A US 5557225 A US5557225 A US 5557225A US 1745983 A US1745983 A US 1745983A
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US
United States
Prior art keywords
transformer
voltage electric
electric transformer
power factor
high voltage
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 - Lifetime
Application number
US55572A
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English (en)
Inventor
Ferranti Sebastian Ziani De
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.)
Ferranti International PLC
Original Assignee
Ferranti PLC
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 Ferranti PLC filed Critical Ferranti PLC
Application granted granted Critical
Publication of US1745983A publication Critical patent/US1745983A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
    • H01F29/10—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit

Definitions

  • the object of my present invention is to reduce the amount of idle current required in such apparatus.
  • the invention consists briefly in the provision in a high voltage electric transformer of a magnetic path of variable reluctance whereby the idle current necessitated may be maintained as small as possible under varying conditions of usage of the transformer.
  • Figure l shows an end elevational view of a convenient construction in accorda-nce with the present invention.
  • Figure 2 is a side elevational view corresponding to Figure l, but to a larger scale.
  • Figure 3 is a fragmental cross-sectional view.
  • the screws c are provided with collars e and nuts f which locate the screws in bearings 7 and cach carries asprocket fin endless chain n couples the two sprockets, a jockey sprocket 7c serving as convenient tensioning means, and one of the sprockets is coupled by an Oldham coupling y' to an operating spindle Z which passes through a stuffing box m.
  • lily invention has special advantages in its application to transformers coupled in cascade.
  • one or all of the transformers in the series may be provided with magnetic circuits of variable reluctance.
  • insulated connecting handles may be provided to operate the mechanism.
  • the iron of the core or yokes is firmly clamped and keyed to the carrying means, so that the forces set up in the magnetic circuit may be properly dealt with by the adjusting mechanism and so that no undue displacement from the regulated position will take place.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Ac-Ac Conversion (AREA)
US55572A 1924-10-21 1925-09-10 High-voltage electric transformer Expired - Lifetime US1745983A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25032/24A GB246545A (en) 1924-10-21 1924-10-21 Improvements in and relating to high voltage electric transformers

Publications (1)

Publication Number Publication Date
US1745983A true US1745983A (en) 1930-02-04

Family

ID=10221112

Family Applications (1)

Application Number Title Priority Date Filing Date
US55572A Expired - Lifetime US1745983A (en) 1924-10-21 1925-09-10 High-voltage electric transformer

Country Status (3)

Country Link
US (1) US1745983A (fr)
FR (1) FR603198A (fr)
GB (1) GB246545A (fr)

Also Published As

Publication number Publication date
FR603198A (fr) 1926-04-10
GB246545A (en) 1926-01-21

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