GB591790A - Contact-protecting arrangement in electric interrupters - Google Patents

Contact-protecting arrangement in electric interrupters

Info

Publication number
GB591790A
GB591790A GB20710/44A GB2071044A GB591790A GB 591790 A GB591790 A GB 591790A GB 20710/44 A GB20710/44 A GB 20710/44A GB 2071044 A GB2071044 A GB 2071044A GB 591790 A GB591790 A GB 591790A
Authority
GB
United Kingdom
Prior art keywords
contact
condenser
contacts
inductance
pair
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
GB20710/44A
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB591790A publication Critical patent/GB591790A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
    • H01H33/596—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle for interrupting dc

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Communication Cables (AREA)

Abstract

591,790. Sparking preventing in switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Oct. 25, 1944, No. 20710. Convention date, Nov. 5, 1943. [Class 38 (v)] The migration of material from one contact to the other of a pair of oscillating contacts 1 in a direct current circuit, is prevented by generating an alternating current through the contacts. This is done by connecting the contact-pair in parallel with a condenser 2, connecting an air-cored inductance 3 in series with condenser and contacts, and shunting a second condenser 4 across the contacts, inductance, and condenser 2. An oscillating circuit is thus provided, the characteristics of which can be regulated by varying the inductance and condensers.
GB20710/44A 1943-11-05 1944-10-25 Contact-protecting arrangement in electric interrupters Expired GB591790A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE591790X 1943-11-05

Publications (1)

Publication Number Publication Date
GB591790A true GB591790A (en) 1947-08-28

Family

ID=20312641

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20710/44A Expired GB591790A (en) 1943-11-05 1944-10-25 Contact-protecting arrangement in electric interrupters

Country Status (1)

Country Link
GB (1) GB591790A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1005593B (en) * 1952-02-09 1957-04-04 Standard Elektrik Ag Arrangement to improve the spark extinguishing circuits with inductivities

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1005593B (en) * 1952-02-09 1957-04-04 Standard Elektrik Ag Arrangement to improve the spark extinguishing circuits with inductivities

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