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JPS6463877A - Earthing resistance measuring apparatus - Google Patents

Earthing resistance measuring apparatus

Info

Publication number
JPS6463877A
JPS6463877A JP21908087A JP21908087A JPS6463877A JP S6463877 A JPS6463877 A JP S6463877A JP 21908087 A JP21908087 A JP 21908087A JP 21908087 A JP21908087 A JP 21908087A JP S6463877 A JPS6463877 A JP S6463877A
Authority
JP
Japan
Prior art keywords
voltage
earth
auxiliary electrode
electrode
measure
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
JP21908087A
Other languages
Japanese (ja)
Other versions
JPH0644024B2 (en
Inventor
Reizo Kaya
Mitsuo Ito
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.)
KAYA SHOJI KK
Original Assignee
KAYA SHOJI KK
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 KAYA SHOJI KK filed Critical KAYA SHOJI KK
Priority to JP21908087A priority Critical patent/JPH0644024B2/en
Publication of JPS6463877A publication Critical patent/JPS6463877A/en
Publication of JPH0644024B2 publication Critical patent/JPH0644024B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Measurement Of Resistance Or Impedance (AREA)

Abstract

PURPOSE:To accurately measure earthing resistance by removing induced voltage and earth stray voltage by measuring the phase difference between the current flowing through a current supply auxiliary electrode and the voltage of a voltage detecting auxiliary electrode. CONSTITUTION:A power source 50 is connected to an earth electrode 59 to be measured and a current supply auxiliary electrode 63 through an insulated transformer 51 and a switch 54, and an ammeter 62 is inserted in this circuit to measure the current flowing between the electrodes. A voltage detecting auxiliary electrode 61 is provided between these electrodes and a voltmeter 60 is provided between the electrode 61 and the earth electrode 59 to be measured. Further, oscilloscopes 64 are provided between both terminals of a resistor 58 for a meter as well as between the voltmeter 60 and one terminal of the resistor 58 to measure the phase difference between a current and voltage, and correction calculation is performed on the basis of the phase difference and the effect of the induced voltage and earth stray voltage generated in the voltage detecting auxiliary electrode is removed to measure earth resistance.
JP21908087A 1987-09-03 1987-09-03 Ground resistance measuring device Expired - Lifetime JPH0644024B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21908087A JPH0644024B2 (en) 1987-09-03 1987-09-03 Ground resistance measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21908087A JPH0644024B2 (en) 1987-09-03 1987-09-03 Ground resistance measuring device

Publications (2)

Publication Number Publication Date
JPS6463877A true JPS6463877A (en) 1989-03-09
JPH0644024B2 JPH0644024B2 (en) 1994-06-08

Family

ID=16729947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21908087A Expired - Lifetime JPH0644024B2 (en) 1987-09-03 1987-09-03 Ground resistance measuring device

Country Status (1)

Country Link
JP (1) JPH0644024B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100420951C (en) * 2003-08-19 2008-09-24 福建省电力勘测设计院 Earth Resistance Measuring Device
JP2011123059A (en) * 2009-11-24 2011-06-23 Fluke Corp Grounding tester using remote control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100420951C (en) * 2003-08-19 2008-09-24 福建省电力勘测设计院 Earth Resistance Measuring Device
JP2011123059A (en) * 2009-11-24 2011-06-23 Fluke Corp Grounding tester using remote control

Also Published As

Publication number Publication date
JPH0644024B2 (en) 1994-06-08

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