JPS52107547A - Earth method - Google Patents

Earth method

Info

Publication number
JPS52107547A
JPS52107547A JP2383676A JP2383676A JPS52107547A JP S52107547 A JPS52107547 A JP S52107547A JP 2383676 A JP2383676 A JP 2383676A JP 2383676 A JP2383676 A JP 2383676A JP S52107547 A JPS52107547 A JP S52107547A
Authority
JP
Japan
Prior art keywords
earth method
voltage
generated
ground
alternator
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
JP2383676A
Other languages
Japanese (ja)
Other versions
JPS561022B2 (en
Inventor
Sadao Hisatomi
Masanori Kanda
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.)
Mitsubishi Electric Corp
Nippon Steel Corp
Original Assignee
Mitsubishi Electric Corp
Nippon Steel Corp
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 Mitsubishi Electric Corp, Nippon Steel Corp filed Critical Mitsubishi Electric Corp
Priority to JP2383676A priority Critical patent/JPS52107547A/en
Publication of JPS52107547A publication Critical patent/JPS52107547A/en
Publication of JPS561022B2 publication Critical patent/JPS561022B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To provide an operation of system protection without an error work, by discriminating a voltage of higher harmonic generated in the ground circuit and a ground voltage generated at a time of one line earth, when an alternator is driven or low-frequency started by static frequency convertor.
COPYRIGHT: (C)1977,JPO&Japio
JP2383676A 1976-03-05 1976-03-05 Earth method Granted JPS52107547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2383676A JPS52107547A (en) 1976-03-05 1976-03-05 Earth method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2383676A JPS52107547A (en) 1976-03-05 1976-03-05 Earth method

Publications (2)

Publication Number Publication Date
JPS52107547A true JPS52107547A (en) 1977-09-09
JPS561022B2 JPS561022B2 (en) 1981-01-10

Family

ID=12121465

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2383676A Granted JPS52107547A (en) 1976-03-05 1976-03-05 Earth method

Country Status (1)

Country Link
JP (1) JPS52107547A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0349313A (en) * 1989-07-17 1991-03-04 Murata Mfg Co Ltd Piezoelectric device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5825902U (en) * 1981-08-12 1983-02-18 大同特殊鋼株式会社 cooking heating device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0349313A (en) * 1989-07-17 1991-03-04 Murata Mfg Co Ltd Piezoelectric device

Also Published As

Publication number Publication date
JPS561022B2 (en) 1981-01-10

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