JPS56147075A - Withstand voltage tester - Google Patents

Withstand voltage tester

Info

Publication number
JPS56147075A
JPS56147075A JP5037480A JP5037480A JPS56147075A JP S56147075 A JPS56147075 A JP S56147075A JP 5037480 A JP5037480 A JP 5037480A JP 5037480 A JP5037480 A JP 5037480A JP S56147075 A JPS56147075 A JP S56147075A
Authority
JP
Japan
Prior art keywords
value
breakdown voltage
voltage
holding
withstand voltage
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
JP5037480A
Other languages
Japanese (ja)
Other versions
JPS6210387B2 (en
Inventor
Tsuyoshi Tateishi
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 JP5037480A priority Critical patent/JPS56147075A/en
Publication of JPS56147075A publication Critical patent/JPS56147075A/en
Publication of JPS6210387B2 publication Critical patent/JPS6210387B2/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
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Relating To Insulation (AREA)

Abstract

PURPOSE:To prevent the reading error for the value of breakdown voltage, by holding the value of breakdown voltage at the time when an automatic breaker works at a digital display device. CONSTITUTION:The test voltage B is applied to the object C to be tested via the transformer T with a control of the voltage adjuster R. This test voltage is displayed on the digital display device DM. When the object C is broken at the value of breakdown voltage, the automatic breaker B1 works to break the input power source A. With detection of this breaking action, the holding switch S2 is turned on. This detection signal is supplied to the holding terminal of the device DM. Accordingly the value of breakdown voltage is held at the device DM for the object C. In such way, the reading error is avoided for the value of breakdown voltage.
JP5037480A 1980-04-18 1980-04-18 Withstand voltage tester Granted JPS56147075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5037480A JPS56147075A (en) 1980-04-18 1980-04-18 Withstand voltage tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5037480A JPS56147075A (en) 1980-04-18 1980-04-18 Withstand voltage tester

Publications (2)

Publication Number Publication Date
JPS56147075A true JPS56147075A (en) 1981-11-14
JPS6210387B2 JPS6210387B2 (en) 1987-03-05

Family

ID=12857103

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5037480A Granted JPS56147075A (en) 1980-04-18 1980-04-18 Withstand voltage tester

Country Status (1)

Country Link
JP (1) JPS56147075A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61173072U (en) * 1985-04-16 1986-10-28
CN101865970A (en) * 2010-05-31 2010-10-20 福建捷联电子有限公司 Automatic voltage-withstanding grounding test system for display and voltage-withstanding grounding test method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61173072U (en) * 1985-04-16 1986-10-28
CN101865970A (en) * 2010-05-31 2010-10-20 福建捷联电子有限公司 Automatic voltage-withstanding grounding test system for display and voltage-withstanding grounding test method thereof

Also Published As

Publication number Publication date
JPS6210387B2 (en) 1987-03-05

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