JPS5467688A - Method of applying voltage for monitoring power cable insulation - Google Patents
Method of applying voltage for monitoring power cable insulationInfo
- Publication number
- JPS5467688A JPS5467688A JP13440877A JP13440877A JPS5467688A JP S5467688 A JPS5467688 A JP S5467688A JP 13440877 A JP13440877 A JP 13440877A JP 13440877 A JP13440877 A JP 13440877A JP S5467688 A JPS5467688 A JP S5467688A
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- power supply
- ground
- insulation resistance
- cable insulation
- 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
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
PURPOSE: To enable directly reading of the cable body insulation resistance value by providing a resistor and a DC constant voltage power supply between the primary winding of a grounding transformer and the ground.
CONSTITUTION: The neutral point O of primary star connection windings of a grounding transformer 3 is grounded through a normally closed switch 14 via a grounding reistor 12 to the ground. The output of a DC constant voltage unit 15 driven by an AC low voltage power supply is supplied to the resistor 12. The AC input switch 16 is turned on when the cable insulation resistance is measured. An ammeter 13 is inserted to read the applied current to thereby measure the ground insulation resistance of the entire high voltage bus sustem. The voltage occurred at both ends of the resistor 12 is used as the leaked current measuring power supply.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52134408A JPS6036025B2 (en) | 1977-11-09 | 1977-11-09 | Voltage application method for power cable insulation monitoring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52134408A JPS6036025B2 (en) | 1977-11-09 | 1977-11-09 | Voltage application method for power cable insulation monitoring |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5467688A true JPS5467688A (en) | 1979-05-31 |
JPS6036025B2 JPS6036025B2 (en) | 1985-08-17 |
Family
ID=15127677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52134408A Expired JPS6036025B2 (en) | 1977-11-09 | 1977-11-09 | Voltage application method for power cable insulation monitoring |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6036025B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024079922A1 (en) * | 2022-10-13 | 2024-04-18 | 株式会社日立産機システム | Dc insulation resistance monitoring system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105004907A (en) * | 2015-04-20 | 2015-10-28 | 江苏省电力公司常州供电公司 | Power cable intersect cross connection grounding system grounding current monitoring and evaluating method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS504052A (en) * | 1973-05-24 | 1975-01-16 |
-
1977
- 1977-11-09 JP JP52134408A patent/JPS6036025B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS504052A (en) * | 1973-05-24 | 1975-01-16 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024079922A1 (en) * | 2022-10-13 | 2024-04-18 | 株式会社日立産機システム | Dc insulation resistance monitoring system |
Also Published As
Publication number | Publication date |
---|---|
JPS6036025B2 (en) | 1985-08-17 |
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