GB1235713A - D.c. circuit interrupting apparatus - Google Patents

D.c. circuit interrupting apparatus

Info

Publication number
GB1235713A
GB1235713A GB47001/68A GB4700168A GB1235713A GB 1235713 A GB1235713 A GB 1235713A GB 47001/68 A GB47001/68 A GB 47001/68A GB 4700168 A GB4700168 A GB 4700168A GB 1235713 A GB1235713 A GB 1235713A
Authority
GB
United Kingdom
Prior art keywords
circuit
switch
triggered
current
gap
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
GB47001/68A
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.)
General Electric Co
Original Assignee
General Electric 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 General Electric Co filed Critical General Electric Co
Publication of GB1235713A publication Critical patent/GB1235713A/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
    • 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
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

1,235,713. Vacuum switches; arcing preventing. GENERAL ELECTRIC CO. 3 Oct., 1968 [5 Oct., 1967], No. 4700l/68 Heading H1N. [Also in Division H2] The direct current circuit interrupting arrangement of Specification 1,133,037 is provided with a surge suppressing circuit 99 connected on the supply source side of the switch 25. The circuit 99 comprises a gap device 100 and a non-linear resistor 102. The device 100 has a trigger gap 151 which is supplied from a pulse source 101 under the control of a switch 103 near the instant when the current through the main switch 25 reaches zero. The current which then flows through circuit 99 limits the recovery voltage. The normally charged capacitor 35 which is discharged through the main switch 25 when a gap device 38 is triggered is also used to cause interruption of the current in the circuit 99, the capacitor 35 being discharged through the device 100, inductor 108 and resistor 107 when a gap device 200 is triggered by a pulse source 201 when a switch 203 is closed, e.g. ten milliseconds after the device 100 has been triggered. The circuit 99 may also serve as a lightning arrestor, the device 100 being triggered when the voltage across a unit of a capacitative voltage divider Fig. 4 (not shown) exceeds a predetermined level. A further surge suppressing circuit 399 is connected across the D.C. circuit on the load side of the switch 25, this circuit comprising a further gap device 300 and non-linear resistor 302.
GB47001/68A 1967-10-05 1968-10-03 D.c. circuit interrupting apparatus Expired GB1235713A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67313667A 1967-10-05 1967-10-05

Publications (1)

Publication Number Publication Date
GB1235713A true GB1235713A (en) 1971-06-16

Family

ID=24701452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47001/68A Expired GB1235713A (en) 1967-10-05 1968-10-03 D.c. circuit interrupting apparatus

Country Status (3)

Country Link
JP (1) JPS4728502B1 (en)
FR (1) FR1596594A (en)
GB (1) GB1235713A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136227A (en) * 1983-03-07 1984-09-12 Nat Res Dev Direct Current Circuit Breakers
US4686393A (en) * 1984-02-01 1987-08-11 National Research Development Corporation Circuit breakers for direct and alternating current
CN108987173A (en) * 2018-10-17 2018-12-11 宁夏晟晏实业集团能源循环经济有限公司 A kind of Anti-breakdown device for 35KV high-pressure vacuum switch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136227A (en) * 1983-03-07 1984-09-12 Nat Res Dev Direct Current Circuit Breakers
US4686393A (en) * 1984-02-01 1987-08-11 National Research Development Corporation Circuit breakers for direct and alternating current
CN108987173A (en) * 2018-10-17 2018-12-11 宁夏晟晏实业集团能源循环经济有限公司 A kind of Anti-breakdown device for 35KV high-pressure vacuum switch

Also Published As

Publication number Publication date
FR1596594A (en) 1970-06-22
JPS4728502B1 (en) 1972-07-28
DE1800205A1 (en) 1969-05-14
DE1800205B2 (en) 1977-03-31

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