JPS5666763A - Measuring device for insulation resistance - Google Patents

Measuring device for insulation resistance

Info

Publication number
JPS5666763A
JPS5666763A JP14246579A JP14246579A JPS5666763A JP S5666763 A JPS5666763 A JP S5666763A JP 14246579 A JP14246579 A JP 14246579A JP 14246579 A JP14246579 A JP 14246579A JP S5666763 A JPS5666763 A JP S5666763A
Authority
JP
Japan
Prior art keywords
current
output
signal
insulation resistance
detection section
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
JP14246579A
Other languages
Japanese (ja)
Other versions
JPS6334986B2 (en
Inventor
Tatsuji Matsuno
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.)
Toyo Communication Equipment Co Ltd
Original Assignee
Toyo Communication Equipment 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 Toyo Communication Equipment Co Ltd filed Critical Toyo Communication Equipment Co Ltd
Priority to JP14246579A priority Critical patent/JPS5666763A/en
Publication of JPS5666763A publication Critical patent/JPS5666763A/en
Publication of JPS6334986B2 publication Critical patent/JPS6334986B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measurement Of Resistance Or Impedance (AREA)

Abstract

PURPOSE: To enable to measure the insulation resistance with high accuracy through automatic adjustment, by obtaining the correcting current, through the use of a signal of which phase is shifted from the measuring signal of an oscillator by 90° and the current in the current detecting section.
CONSTITUTION: To detect the current i flowing to the ground line EL with the output signal of a low frequency oscillator OSC which is inserted in the ground line EL, the current detection section including a resistor R0 is provided. Further, the signal phase-shifting PS the OSC output by 90° and the current of the detection section are taken for the product, and the value which is a multiple of DC component of the product and the signal obtained through the output of PS added to the variable attenuator VR are adjusted to be equal by VR. Further, the current component due to parasitic capacitance included in the current detection section is removed by adding ADD the output of VR to the output of the current detecting section to obtain a value proportional to the insulation resistance at the output OUT.
COPYRIGHT: (C)1981,JPO&Japio
JP14246579A 1979-11-01 1979-11-01 Measuring device for insulation resistance Granted JPS5666763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14246579A JPS5666763A (en) 1979-11-01 1979-11-01 Measuring device for insulation resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14246579A JPS5666763A (en) 1979-11-01 1979-11-01 Measuring device for insulation resistance

Publications (2)

Publication Number Publication Date
JPS5666763A true JPS5666763A (en) 1981-06-05
JPS6334986B2 JPS6334986B2 (en) 1988-07-13

Family

ID=15315941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14246579A Granted JPS5666763A (en) 1979-11-01 1979-11-01 Measuring device for insulation resistance

Country Status (1)

Country Link
JP (1) JPS5666763A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127173A (en) * 1982-01-26 1983-07-28 Toyo Commun Equip Co Ltd Measurement of insulation resistance for electric line

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127173A (en) * 1982-01-26 1983-07-28 Toyo Commun Equip Co Ltd Measurement of insulation resistance for electric line
JPH0346787B2 (en) * 1982-01-26 1991-07-17 Toyo Communication Equip

Also Published As

Publication number Publication date
JPS6334986B2 (en) 1988-07-13

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