JPS55125458A - Insulation resistance measuring device - Google Patents

Insulation resistance measuring device

Info

Publication number
JPS55125458A
JPS55125458A JP3295879A JP3295879A JPS55125458A JP S55125458 A JPS55125458 A JP S55125458A JP 3295879 A JP3295879 A JP 3295879A JP 3295879 A JP3295879 A JP 3295879A JP S55125458 A JPS55125458 A JP S55125458A
Authority
JP
Japan
Prior art keywords
switch
insulation resistance
detector
measured
output
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
JP3295879A
Other languages
Japanese (ja)
Inventor
Ryoji Anahara
Yoshio Sugano
Koichi Sato
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP3295879A priority Critical patent/JPS55125458A/en
Publication of JPS55125458A publication Critical patent/JPS55125458A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To monitor the insulation state of respective distribution lines besides the insulation state of the whole system by providing a switch that changes the output of leakage current detectors installed on the respective distribution lines to the output of feedback current detector of the system.
CONSTITUTION: The leakage current detector 11 consists of zero-phase current transformer 12, which is placed so that it surrounds the distribution lines, and the amplifier 13 that amplifies the output of said current transformer 12. The switch 14 changes both outputs of the detector 10, which detects a system feedback current, and the detector 11, and feeds its signal to the operation part of the measuring unit 4. When the switch 14 is in the state C shown in Figure, the insulation resistance of the whole system can be measured. When the switch is turned to the position 1, the ground insulation resistance of the feeder that leads to the load 2 can be measured. Similarly when the switch 14 is turned to the position n, the insulation resistance of the feeder that leads to the load n+1 can be measured.
COPYRIGHT: (C)1980,JPO&Japio
JP3295879A 1979-03-20 1979-03-20 Insulation resistance measuring device Pending JPS55125458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3295879A JPS55125458A (en) 1979-03-20 1979-03-20 Insulation resistance measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3295879A JPS55125458A (en) 1979-03-20 1979-03-20 Insulation resistance measuring device

Publications (1)

Publication Number Publication Date
JPS55125458A true JPS55125458A (en) 1980-09-27

Family

ID=12373426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3295879A Pending JPS55125458A (en) 1979-03-20 1979-03-20 Insulation resistance measuring device

Country Status (1)

Country Link
JP (1) JPS55125458A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5816874A (en) * 1981-07-24 1983-01-31 Ricoh Co Ltd Semi-automatic paper insertion device
JPS59202077A (en) * 1983-04-30 1984-11-15 Hitachi Cable Ltd Diagnosis of insulation deterioration of power cable
JPH01313768A (en) * 1988-06-13 1989-12-19 Toyo Commun Equip Co Ltd Measuring method for insulation resistance of load equipment or the like

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5816874A (en) * 1981-07-24 1983-01-31 Ricoh Co Ltd Semi-automatic paper insertion device
JPH0419034B2 (en) * 1981-07-24 1992-03-30 Ricoh Kk
JPS59202077A (en) * 1983-04-30 1984-11-15 Hitachi Cable Ltd Diagnosis of insulation deterioration of power cable
JPH0429982B2 (en) * 1983-04-30 1992-05-20
JPH01313768A (en) * 1988-06-13 1989-12-19 Toyo Commun Equip Co Ltd Measuring method for insulation resistance of load equipment or the like

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