JPS54155082A - Insulating faulty point location detecting circuit of wire and cable - Google Patents
Insulating faulty point location detecting circuit of wire and cableInfo
- Publication number
- JPS54155082A JPS54155082A JP6355478A JP6355478A JPS54155082A JP S54155082 A JPS54155082 A JP S54155082A JP 6355478 A JP6355478 A JP 6355478A JP 6355478 A JP6355478 A JP 6355478A JP S54155082 A JPS54155082 A JP S54155082A
- Authority
- JP
- Japan
- Prior art keywords
- galvanometer
- terminal
- locations
- sliding
- cable
- 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.)
- Pending
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Locating Faults (AREA)
Abstract
PURPOSE: To detect the locations of insulation faulty points with comparative high- resistance of a wire and a cable, by balanceing a bridge circuit by denying induced voltage by applying induced voltage applied to a galvanometer and voltage with inverse polarity to a galvanometer circuit.
CONSTITUTION: If a sliding terminal of a sliding resistance 9 is moved up to a left end when a 1.5V dry cell is used for an auxiliary direct-current power source 6 and a switch 10 is made, not more than 1.5V voltage is applied between the earth E and a sliding terminal C of a sliding resistance 2. When changing over a change-over switch 8, polarity becomes inverse. Thus, a pointer of a galvanometer G is freely set to the maximum division at the minus side from the maximum division at plus side by varying the locations of the sliding terminal of the sliding resistance 9. If induced voltage of cables 1, 1' to be measured is applied between A, B when the switch 10 is broken, voltage, which differs by the locations of the terminal C of the sliding resistance 2, is applied to the galvanometer G, and the pointer swings to the plus side or the minus side. If a switch 11 is made using the location of the fixed swing as the zero location of the galvanometer G and a bridge circuit is balanced by moving the terminal C, the locations of the faulty points 4 of a cable can be measured.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6355478A JPS54155082A (en) | 1978-05-26 | 1978-05-26 | Insulating faulty point location detecting circuit of wire and cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6355478A JPS54155082A (en) | 1978-05-26 | 1978-05-26 | Insulating faulty point location detecting circuit of wire and cable |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54155082A true JPS54155082A (en) | 1979-12-06 |
Family
ID=13232551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6355478A Pending JPS54155082A (en) | 1978-05-26 | 1978-05-26 | Insulating faulty point location detecting circuit of wire and cable |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54155082A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0413980A (en) * | 1990-05-08 | 1992-01-17 | Tokyo Electric Power Co Inc:The | Apparatus for measuring insulation deterioration of cable line |
CN110554295A (en) * | 2018-06-04 | 2019-12-10 | 中冶天工集团有限公司 | method for searching power cable insulation fault point by using high-precision multimeter |
-
1978
- 1978-05-26 JP JP6355478A patent/JPS54155082A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0413980A (en) * | 1990-05-08 | 1992-01-17 | Tokyo Electric Power Co Inc:The | Apparatus for measuring insulation deterioration of cable line |
CN110554295A (en) * | 2018-06-04 | 2019-12-10 | 中冶天工集团有限公司 | method for searching power cable insulation fault point by using high-precision multimeter |
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