JPS5657964A - Insulation tester - Google Patents
Insulation testerInfo
- 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
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
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)
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)
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 |
-
1979
- 1979-10-16 JP JP13342179A patent/JPS5657964A/en active Granted
Patent Citations (2)
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)
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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