JPS5762775A - Current type vvvf device - Google Patents

Current type vvvf device

Info

Publication number
JPS5762775A
JPS5762775A JP55137966A JP13796680A JPS5762775A JP S5762775 A JPS5762775 A JP S5762775A JP 55137966 A JP55137966 A JP 55137966A JP 13796680 A JP13796680 A JP 13796680A JP S5762775 A JPS5762775 A JP S5762775A
Authority
JP
Japan
Prior art keywords
operation test
output transformer
supplies
short
switch
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.)
Pending
Application number
JP55137966A
Other languages
Japanese (ja)
Inventor
Shuichi Taniyoshi
Kazuyuki Sato
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP55137966A priority Critical patent/JPS5762775A/en
Publication of JPS5762775A publication Critical patent/JPS5762775A/en
Pending 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/443—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Control Of Ac Motors In General (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

PURPOSE:To perform operation test in a simple way, by providing a switch that short-circuits the secondary side of an output transformer and a circuit that supplies a closed signal to the switch according to an operation test command and supplies speed command selection signal for operation test to a speed command circuit. CONSTITUTION:A switch 64 for output transformer short-circuiting that is connected between the terminals of the secondary side of an output transformer 24 and short-circuits the secondary side of an output transformer according to a closed control signal is provided. Further, an operation test control circuit which supplies a close control of signal to a switch 64 for short-circuiting the output transformer according to the operation test command and supplies an operation test closing speed command selection signal to a speed command circuit 26. By this arrangement the connection for operation test is automatically carried out by operation test control circuit and the operation test can be carried out very easily.
JP55137966A 1980-10-02 1980-10-02 Current type vvvf device Pending JPS5762775A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55137966A JPS5762775A (en) 1980-10-02 1980-10-02 Current type vvvf device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55137966A JPS5762775A (en) 1980-10-02 1980-10-02 Current type vvvf device

Publications (1)

Publication Number Publication Date
JPS5762775A true JPS5762775A (en) 1982-04-15

Family

ID=15210890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55137966A Pending JPS5762775A (en) 1980-10-02 1980-10-02 Current type vvvf device

Country Status (1)

Country Link
JP (1) JPS5762775A (en)

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