JPS57138815A - Reverse phase detecting and protecting relay - Google Patents

Reverse phase detecting and protecting relay

Info

Publication number
JPS57138815A
JPS57138815A JP2306481A JP2306481A JPS57138815A JP S57138815 A JPS57138815 A JP S57138815A JP 2306481 A JP2306481 A JP 2306481A JP 2306481 A JP2306481 A JP 2306481A JP S57138815 A JPS57138815 A JP S57138815A
Authority
JP
Japan
Prior art keywords
reverse phase
phase detecting
protecting relay
relay
protecting
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
JP2306481A
Other languages
Japanese (ja)
Inventor
Hiroshi Andou
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 JP2306481A priority Critical patent/JPS57138815A/en
Publication of JPS57138815A publication Critical patent/JPS57138815A/en
Pending legal-status Critical Current

Links

JP2306481A 1981-02-20 1981-02-20 Reverse phase detecting and protecting relay Pending JPS57138815A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2306481A JPS57138815A (en) 1981-02-20 1981-02-20 Reverse phase detecting and protecting relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2306481A JPS57138815A (en) 1981-02-20 1981-02-20 Reverse phase detecting and protecting relay

Publications (1)

Publication Number Publication Date
JPS57138815A true JPS57138815A (en) 1982-08-27

Family

ID=12099980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2306481A Pending JPS57138815A (en) 1981-02-20 1981-02-20 Reverse phase detecting and protecting relay

Country Status (1)

Country Link
JP (1) JPS57138815A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6176014A (en) * 1984-09-21 1986-04-18 大崎電気工業株式会社 Disconnection detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6176014A (en) * 1984-09-21 1986-04-18 大崎電気工業株式会社 Disconnection detector

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