JPS5657964A - Insulation tester - Google Patents

Insulation tester

Info

Publication number
JPS5657964A
JPS5657964A JP13342179A JP13342179A JPS5657964A JP S5657964 A JPS5657964 A JP S5657964A JP 13342179 A JP13342179 A JP 13342179A JP 13342179 A JP13342179 A JP 13342179A JP S5657964 A JPS5657964 A JP S5657964A
Authority
JP
Japan
Prior art keywords
transformer
wsw
switches
terminal
insulation resistance
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
JP13342179A
Other languages
Japanese (ja)
Other versions
JPS6148670B2 (en
Inventor
Shotaro Shindo
Yoshio Oguma
Eiji Hayashi
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP13342179A priority Critical patent/JPS5657964A/en
Publication of JPS5657964A publication Critical patent/JPS5657964A/en
Publication of JPS6148670B2 publication Critical patent/JPS6148670B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To enable leakage current to be measured by clipping an electric source line by the use of a pair of clip type transformers to measure insulation resistance, and using one clip type transformer.
CONSTITUTION: In the case of measuring insulation resistance, the respective moving pieces of switches SW1WSW3 are connected to a terminal MΩ. The electric power source lines l1, l2 which are in a live state are inserted from the core split ends 14, 24 of transformers CT1, CT2 into the core and are clipped. In the case of measuring leak current, the moving pieces of the switches SW1WSW3 are connected respectively to the terminal I0. As a result, the transformer CT1 is isolated from an oscillator OSC, and the transformer CT2 is connected to an indicator M via an amplifying and rectifying circuit AR. In such a state, the differential current of the currents I1, I2 flowing in the lines l1, l2 are detected with the transformer CT2. The value of this detected signal indicates the value of the leak current.
COPYRIGHT: (C)1981,JPO&Japio
JP13342179A 1979-10-16 1979-10-16 Insulation tester Granted JPS5657964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13342179A JPS5657964A (en) 1979-10-16 1979-10-16 Insulation tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13342179A JPS5657964A (en) 1979-10-16 1979-10-16 Insulation tester

Publications (2)

Publication Number Publication Date
JPS5657964A true JPS5657964A (en) 1981-05-20
JPS6148670B2 JPS6148670B2 (en) 1986-10-25

Family

ID=15104372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13342179A Granted JPS5657964A (en) 1979-10-16 1979-10-16 Insulation tester

Country Status (1)

Country Link
JP (1) JPS5657964A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56137166A (en) * 1980-03-27 1981-10-26 Toyo Commun Equip Co Ltd Detecting method of leakage current
EP0791835A2 (en) * 1996-02-20 1997-08-27 GOSSEN-METRAWATT Gesellschaft mit beschränkter Haftung Laboratory test device for isolation testing of a load connected for testing purposes
KR100445755B1 (en) * 2001-05-25 2004-08-25 (주)에디테크 Ground resist ance tester for power electric poles and a method of the measuring

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142143A (en) * 1977-11-18 1979-02-27 The United States Of America As Represented By The Secretary Of The Navy Lightning ground system attachable admittance testing instrument
JPS54109883A (en) * 1978-02-16 1979-08-28 Fuji Electric Co Ltd Floating capacity measuring apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142143A (en) * 1977-11-18 1979-02-27 The United States Of America As Represented By The Secretary Of The Navy Lightning ground system attachable admittance testing instrument
JPS54109883A (en) * 1978-02-16 1979-08-28 Fuji Electric Co Ltd Floating capacity measuring apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56137166A (en) * 1980-03-27 1981-10-26 Toyo Commun Equip Co Ltd Detecting method of leakage current
JPS6330583B2 (en) * 1980-03-27 1988-06-20 Toyo Communication Equip
EP0791835A2 (en) * 1996-02-20 1997-08-27 GOSSEN-METRAWATT Gesellschaft mit beschränkter Haftung Laboratory test device for isolation testing of a load connected for testing purposes
EP0791835A3 (en) * 1996-02-20 1998-04-22 GOSSEN-METRAWATT Gesellschaft mit beschränkter Haftung Laboratory test device for isolation testing of a load connected for testing purposes
KR100445755B1 (en) * 2001-05-25 2004-08-25 (주)에디테크 Ground resist ance tester for power electric poles and a method of the measuring

Also Published As

Publication number Publication date
JPS6148670B2 (en) 1986-10-25

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