CA1122647A - Rapid transit system transient voltage suppression apparatus - Google Patents

Rapid transit system transient voltage suppression apparatus

Info

Publication number
CA1122647A
CA1122647A CA336,548A CA336548A CA1122647A CA 1122647 A CA1122647 A CA 1122647A CA 336548 A CA336548 A CA 336548A CA 1122647 A CA1122647 A CA 1122647A
Authority
CA
Canada
Prior art keywords
voltage
capacitor
thyristor switch
zener
suppression apparatus
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
CA336,548A
Other languages
English (en)
French (fr)
Inventor
Warren C. Fry
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.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of CA1122647A publication Critical patent/CA1122647A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/0833—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/005—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection avoiding undesired transient conditions
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
    • H02M3/305—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M3/315—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M3/3155—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of the output voltage or current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Power Conversion In General (AREA)
  • Dc-Dc Converters (AREA)
  • Control Of Direct Current Motors (AREA)
CA336,548A 1978-10-25 1979-09-27 Rapid transit system transient voltage suppression apparatus Expired CA1122647A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US95449678A 1978-10-25 1978-10-25
US954,496 1978-10-25

Publications (1)

Publication Number Publication Date
CA1122647A true CA1122647A (en) 1982-04-27

Family

ID=25495500

Family Applications (1)

Application Number Title Priority Date Filing Date
CA336,548A Expired CA1122647A (en) 1978-10-25 1979-09-27 Rapid transit system transient voltage suppression apparatus

Country Status (8)

Country Link
JP (1) JPS5566275A (it)
BR (1) BR7906583A (it)
CA (1) CA1122647A (it)
ES (1) ES485313A0 (it)
GB (1) GB2036467B (it)
IN (1) IN151524B (it)
IT (1) IT1124645B (it)
MX (1) MX146929A (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2399465A (en) * 2003-03-13 2004-09-15 Bombardier Transp A protection arrangement for transferring electric power to a power consumer
US8384034B2 (en) 2007-09-21 2013-02-26 National Institute Of Radiological Sciences Beta ray detector and beta ray reconstruction method

Also Published As

Publication number Publication date
JPS5566275A (en) 1980-05-19
ES8100566A1 (es) 1980-11-01
GB2036467B (en) 1982-12-15
GB2036467A (en) 1980-06-25
ES485313A0 (es) 1980-11-01
MX146929A (es) 1982-09-08
IT7926763A0 (it) 1979-10-24
IN151524B (it) 1983-05-14
BR7906583A (pt) 1980-06-24
IT1124645B (it) 1986-05-07

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Legal Events

Date Code Title Description
MKEX Expiry
MKEX Expiry

Effective date: 19990427