GB1278782A - Improvements relating to high-voltage multi-break switchgear - Google Patents

Improvements relating to high-voltage multi-break switchgear

Info

Publication number
GB1278782A
GB1278782A GB3504168A GB3504168A GB1278782A GB 1278782 A GB1278782 A GB 1278782A GB 3504168 A GB3504168 A GB 3504168A GB 3504168 A GB3504168 A GB 3504168A GB 1278782 A GB1278782 A GB 1278782A
Authority
GB
United Kingdom
Prior art keywords
breaks
break
switches
parallel
branch
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
GB3504168A
Inventor
Donald Foster Amer
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.)
A Reyrolle and Co Ltd
Original Assignee
A Reyrolle and 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 A Reyrolle and Co Ltd filed Critical A Reyrolle and Co Ltd
Priority to GB3504168A priority Critical patent/GB1278782A/en
Publication of GB1278782A publication Critical patent/GB1278782A/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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • H01H33/167—Impedances connected with contacts the impedance being inserted only while opening the switch
    • 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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc

Landscapes

  • Keying Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

1278782 Arcing preventing in switches A REYROLLE & CO Ltd 21 Oct 1969 [23 July 1968] 35041/68 Heading H1N A multibreak circuit breaking apparatus comprises two branch circuits X, Y, each consisting of one or more breaks, and a resistance 13 connected between the branches such that it is connected in parallel with breaks A which open first and in series with breaks B which open last. The difference in opening time may be achieved by operating the switches sequentially or by using different types of breaks which take different times to clear the opening arc. In a modification (Fig. 2, not shown) there are three A breaks and one B break in each branch circuit. Or (Fig. 3, not shown) there may be three A breaks in one branch, three B in the other. In a three-branch circuit (Fig. 4A) both resistors 14, 15 are in parallel with first breaks A; resistor 15 is in parallel with second break B and both are in series with last break C. The breaks may be formed by vacuum switches or sealed gas filled switches.
GB3504168A 1968-07-23 1968-07-23 Improvements relating to high-voltage multi-break switchgear Expired GB1278782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3504168A GB1278782A (en) 1968-07-23 1968-07-23 Improvements relating to high-voltage multi-break switchgear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3504168A GB1278782A (en) 1968-07-23 1968-07-23 Improvements relating to high-voltage multi-break switchgear

Publications (1)

Publication Number Publication Date
GB1278782A true GB1278782A (en) 1972-06-21

Family

ID=10373101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3504168A Expired GB1278782A (en) 1968-07-23 1968-07-23 Improvements relating to high-voltage multi-break switchgear

Country Status (1)

Country Link
GB (1) GB1278782A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2438712A (en) * 2006-05-31 2007-12-05 Natali Gianfranco Device for breaking and closing electric circuits

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2438712A (en) * 2006-05-31 2007-12-05 Natali Gianfranco Device for breaking and closing electric circuits
GB2438712B (en) * 2006-05-31 2011-03-30 Gianfranco Natali Device for breaking and closing electric circuit

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Legal Events

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