JPS5585261A - Partial discharge detector for gas insulated electric appliance - Google Patents

Partial discharge detector for gas insulated electric appliance

Info

Publication number
JPS5585261A
JPS5585261A JP15739478A JP15739478A JPS5585261A JP S5585261 A JPS5585261 A JP S5585261A JP 15739478 A JP15739478 A JP 15739478A JP 15739478 A JP15739478 A JP 15739478A JP S5585261 A JPS5585261 A JP S5585261A
Authority
JP
Japan
Prior art keywords
current
partial discharge
grounding
metal capsules
separated
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
Application number
JP15739478A
Other languages
Japanese (ja)
Inventor
Kimihito Abe
Shigeo Shiono
Seiichi Maruyama
Kazuaki Oishi
Atsushi Ozawa
Takao Miyashita
Yoshio Yoshioka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15739478A priority Critical patent/JPS5585261A/en
Publication of JPS5585261A publication Critical patent/JPS5585261A/en
Pending legal-status Critical Current

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  • Testing Relating To Insulation (AREA)

Abstract

PURPOSE: To facilitate the detection of partial discharge generated within the closed bus or the like by providing a one-point grounding wire for metal capsules separated while an electromagnetic probe, a corona pulse amplifier, and a signal converter are connected to respective grounding wires.
CONSTITUTION: An electric connector between metal capsules are disconnected in a plurality of sections 5 so that no short-circuit occurs between a sheath current of the metal capsules 3 and 4 induced by the bus current to form a loop. A one-point grounding wire 6 is provided for the sections 5 each thus separated and an electromagnetic coupling current detector 7 (an electromagnetic probe), a corona pulse amplifier 8 and signal converter 9 to the grounding wires to monitor partial discharge for each metal capsules separated from each other. It is found that a corona pulse current flow through the grounding wires 6 overlapping a charged current as any partial discharge is caused in the insulated support in the section 5. The closed container separation section 5 allows the checking of the current from flowing to other grounding lines.
COPYRIGHT: (C)1980,JPO&Japio
JP15739478A 1978-12-22 1978-12-22 Partial discharge detector for gas insulated electric appliance Pending JPS5585261A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15739478A JPS5585261A (en) 1978-12-22 1978-12-22 Partial discharge detector for gas insulated electric appliance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15739478A JPS5585261A (en) 1978-12-22 1978-12-22 Partial discharge detector for gas insulated electric appliance

Publications (1)

Publication Number Publication Date
JPS5585261A true JPS5585261A (en) 1980-06-27

Family

ID=15648665

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15739478A Pending JPS5585261A (en) 1978-12-22 1978-12-22 Partial discharge detector for gas insulated electric appliance

Country Status (1)

Country Link
JP (1) JPS5585261A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60158167U (en) * 1984-03-29 1985-10-21 財団法人　電力中央研究所 Ground wire pulse detection device for insulation diagnosis using partial discharge phase characteristics
JPH0285771A (en) * 1988-09-21 1990-03-27 Fuji Electric Co Ltd Method for detecting partial discharge of high-voltage apparatus
JP2009168489A (en) * 2008-01-11 2009-07-30 Toshiba Corp Insulation monitoring apparatus and insulation diagnosis method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5344773B2 (en) * 1975-04-10 1978-12-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5344773B2 (en) * 1975-04-10 1978-12-01

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60158167U (en) * 1984-03-29 1985-10-21 財団法人　電力中央研究所 Ground wire pulse detection device for insulation diagnosis using partial discharge phase characteristics
JPH0285771A (en) * 1988-09-21 1990-03-27 Fuji Electric Co Ltd Method for detecting partial discharge of high-voltage apparatus
JP2009168489A (en) * 2008-01-11 2009-07-30 Toshiba Corp Insulation monitoring apparatus and insulation diagnosis method

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