GB1331748A - Electrical reactors - Google Patents

Electrical reactors

Info

Publication number
GB1331748A
GB1331748A GB1331748DA GB1331748A GB 1331748 A GB1331748 A GB 1331748A GB 1331748D A GB1331748D A GB 1331748DA GB 1331748 A GB1331748 A GB 1331748A
Authority
GB
United Kingdom
Prior art keywords
magnetically
winding
saturistor
cores
dec
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
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Publication of GB1331748A publication Critical patent/GB1331748A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F37/00—Fixed inductances not covered by group H01F17/00
    • 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
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

1331748 Inductors NATIONAL RESEARCH DEVELOPMENT CORP 17 Dec 1970 [17 Dec 1969] 61475/69 Heading HIT A saturistor, in which the resistive component of the inductance increases with the frequency of the A.C. current in the winding 12, has its grain-orientated magnetically hard material divided into several members 13 separated by magnetically soft material 14. For each magnetically hard member 13 the ratio of the square roof of its area normal to the direction of flux divided by its height parallel to the flux (the "aspect ratio") is more than two and typically thirty. For three phase working the saturistor may comprise three cores each with a winding, each core comprising one third of the magnetically hard members and the remainder of magnetically soft-material, the cores being joined in parallel by magnetically soft material. A D.C. winding may be provided to vary the resistance and reactance by varying the direct current.
GB1331748D 1970-12-17 1970-12-17 Electrical reactors Expired GB1331748A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6147569 1970-12-17

Publications (1)

Publication Number Publication Date
GB1331748A true GB1331748A (en) 1973-09-26

Family

ID=10487077

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1331748D Expired GB1331748A (en) 1970-12-17 1970-12-17 Electrical reactors

Country Status (1)

Country Link
GB (1) GB1331748A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0136809A1 (en) * 1983-09-07 1985-04-10 Ben-Gurion University Of The Negev Research And Development Authority Polyphase assembly for controlling A.C. devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0136809A1 (en) * 1983-09-07 1985-04-10 Ben-Gurion University Of The Negev Research And Development Authority Polyphase assembly for controlling A.C. devices
US4626815A (en) * 1983-09-07 1986-12-02 Ben-Gurion University Of The Negev Research And Development Authority Polyphase assembly

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees