JPS5756766A - Equivalent tester for breaker - Google Patents

Equivalent tester for breaker

Info

Publication number
JPS5756766A
JPS5756766A JP13188880A JP13188880A JPS5756766A JP S5756766 A JPS5756766 A JP S5756766A JP 13188880 A JP13188880 A JP 13188880A JP 13188880 A JP13188880 A JP 13188880A JP S5756766 A JPS5756766 A JP S5756766A
Authority
JP
Japan
Prior art keywords
current
zero point
breaking
current source
vibrating
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.)
Granted
Application number
JP13188880A
Other languages
Japanese (ja)
Other versions
JPS6119942B2 (en
Inventor
Shojiro Ochiai
Akira Kato
Shunichi Arakawa
Takakazu Matsunami
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.)
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Corp
Meidensha Electric Manufacturing 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 Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Priority to JP13188880A priority Critical patent/JPS5756766A/en
Publication of JPS5756766A publication Critical patent/JPS5756766A/en
Publication of JPS6119942B2 publication Critical patent/JPS6119942B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
    • G01R31/333—Testing of the switching capacity of high-voltage circuit-breakers ; Testing of breaking capacity or related variables, e.g. post arc current or transient recovery voltage
    • G01R31/3333—Apparatus, systems or circuits therefor
    • G01R31/3336—Synthetic testing, i.e. with separate current and voltage generators simulating distance fault conditions

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)

Abstract

PURPOSE:To make the injection of the electric current which exceeds a breaking current point by the resultant current of di/dt above the breaking capacity of a test breaker and of which the resultant current after exceeding the current zero point does not pass by the zero point again possible by providing a high frequency vibrating current source and a non-vibrating current source of CR to an equivalent tester for breakers by a synthesis test method. CONSTITUTION:A high frequency vibrating current source and a non-vibrating current source of CR are provided to an impulse circuit IMP as an injecting current source for arc extension. First the high frequency vibrating current is superposed just before the zero point of breaking current I1 to said breaking current, and the current of a non-vibrating gradually attenuating waveform from another current source is superposed in a polarity inversion direction at the polarity inverting after half cycle thereof. Thereby, the passage of the breaking current through the zero point is made high di/dt, and after the passage of the zero point, it will not pass by the zero point again, thus the arc extension is made possible surely, and the stable breaking performance test is carried out.
JP13188880A 1980-09-22 1980-09-22 Equivalent tester for breaker Granted JPS5756766A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13188880A JPS5756766A (en) 1980-09-22 1980-09-22 Equivalent tester for breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13188880A JPS5756766A (en) 1980-09-22 1980-09-22 Equivalent tester for breaker

Publications (2)

Publication Number Publication Date
JPS5756766A true JPS5756766A (en) 1982-04-05
JPS6119942B2 JPS6119942B2 (en) 1986-05-20

Family

ID=15068487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13188880A Granted JPS5756766A (en) 1980-09-22 1980-09-22 Equivalent tester for breaker

Country Status (1)

Country Link
JP (1) JPS5756766A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6452153A (en) * 1987-05-07 1989-02-28 Fuji Photo Film Co Ltd Circulating liquid flow detector for automatic photosensitive material developing machine
JPS6452152A (en) * 1987-05-07 1989-02-28 Fuji Photo Film Co Ltd Circulating liquid flow detector for automatic photosensitive material developing machine
JPH02145921A (en) * 1988-11-28 1990-06-05 Ranco Japan Ltd Level controller for liquid

Also Published As

Publication number Publication date
JPS6119942B2 (en) 1986-05-20

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