JPS5467688A - Method of applying voltage for monitoring power cable insulation - Google Patents

Method of applying voltage for monitoring power cable insulation

Info

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
Application number
JP13440877A
Other languages
Japanese (ja)
Other versions
JPS6036025B2 (en
Inventor
Tadaharu Nakayama
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP52134408A priority Critical patent/JPS6036025B2/en
Publication of JPS5467688A publication Critical patent/JPS5467688A/en
Publication of JPS6036025B2 publication Critical patent/JPS6036025B2/en
Expired legal-status Critical Current

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
JP52134408A 1977-11-09 1977-11-09 Voltage application method for power cable insulation monitoring Expired JPS6036025B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS504052A (en) * 1973-05-24 1975-01-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS504052A (en) * 1973-05-24 1975-01-16

Cited By (1)

* Cited by examiner, † Cited by third party
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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