JPS6468675A - Equivalent testing device for breaker - Google Patents

Equivalent testing device for breaker

Info

Publication number
JPS6468675A
JPS6468675A JP22393687A JP22393687A JPS6468675A JP S6468675 A JPS6468675 A JP S6468675A JP 22393687 A JP22393687 A JP 22393687A JP 22393687 A JP22393687 A JP 22393687A JP S6468675 A JPS6468675 A JP S6468675A
Authority
JP
Japan
Prior art keywords
breaker
voltage
current
transformers
tested
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
JP22393687A
Other languages
Japanese (ja)
Other versions
JPH0782080B2 (en
Inventor
Minoru Sato
Katsuichi Kashimura
Yukio Kurosawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP22393687A priority Critical patent/JPH0782080B2/en
Publication of JPS6468675A publication Critical patent/JPS6468675A/en
Publication of JPH0782080B2 publication Critical patent/JPH0782080B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

PURPOSE:To expand a test voltage range up to a double voltage only by changing connections of existent facilities by connecting a circuit which consists of a transformer and a capacitor and where a leading current flows to the terminal of the breaker to be tested, and making the polarity of a voltage opposite. CONSTITUTION:When a power generator 1 applies a prescribed voltage to transformers 9 and 10 with a turning-on switch 2, a current (i) flows to the breaker 7 through capacitors 11 and 12 in the presence of secondary voltages ea and eb while the breaker 7 to be tested is closed. In this state, when the current (i) is cut off by supplying a disconnection instruction to the breaker 7, ground voltages Va and Vb with the completely opposite polarities are applied to the terminals of the breakers 7 right after the disconnection. Therefore, the sum voltage of output voltage effective values of the transformers 9 and 10 is applied between the terminals of the breaker 7 and the range of the test voltage is widened.
JP22393687A 1987-09-09 1987-09-09 Circuit breaker test equipment Expired - Fee Related JPH0782080B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22393687A JPH0782080B2 (en) 1987-09-09 1987-09-09 Circuit breaker test equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22393687A JPH0782080B2 (en) 1987-09-09 1987-09-09 Circuit breaker test equipment

Publications (2)

Publication Number Publication Date
JPS6468675A true JPS6468675A (en) 1989-03-14
JPH0782080B2 JPH0782080B2 (en) 1995-09-06

Family

ID=16806027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22393687A Expired - Fee Related JPH0782080B2 (en) 1987-09-09 1987-09-09 Circuit breaker test equipment

Country Status (1)

Country Link
JP (1) JPH0782080B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011113666A (en) * 2009-11-24 2011-06-09 Toshiba Corp Mold vacuum valve and method for testing the same
CN109188264A (en) * 2018-09-27 2019-01-11 东莞市广荣电子制品有限公司 A kind of circuit breaker state detecting circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6358181A (en) * 1986-08-27 1988-03-12 Mitsubishi Electric Corp Small leading current cutoff test circuit for circuit breaker

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6358181A (en) * 1986-08-27 1988-03-12 Mitsubishi Electric Corp Small leading current cutoff test circuit for circuit breaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011113666A (en) * 2009-11-24 2011-06-09 Toshiba Corp Mold vacuum valve and method for testing the same
CN109188264A (en) * 2018-09-27 2019-01-11 东莞市广荣电子制品有限公司 A kind of circuit breaker state detecting circuit

Also Published As

Publication number Publication date
JPH0782080B2 (en) 1995-09-06

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees