JPS548845A - Phase-lack protection device - Google Patents

Phase-lack protection device

Info

Publication number
JPS548845A
JPS548845A JP7401877A JP7401877A JPS548845A JP S548845 A JPS548845 A JP S548845A JP 7401877 A JP7401877 A JP 7401877A JP 7401877 A JP7401877 A JP 7401877A JP S548845 A JPS548845 A JP S548845A
Authority
JP
Japan
Prior art keywords
phase
protection device
lack protection
power fuse
voltages
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
JP7401877A
Other languages
Japanese (ja)
Inventor
Hiroshi 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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 filed Critical Mitsubishi Electric Corp
Priority to JP7401877A priority Critical patent/JPS548845A/en
Publication of JPS548845A publication Critical patent/JPS548845A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To provide alarm when a failure occurs in a power fuse or a circuit breaker, by detecting voltages on both sides of the power fuse by means of respective voltage dividing capacitors and comparing the detected voltages by a differential voltage circuit.
COPYRIGHT: (C)1979,JPO&Japio
JP7401877A 1977-06-21 1977-06-21 Phase-lack protection device Pending JPS548845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7401877A JPS548845A (en) 1977-06-21 1977-06-21 Phase-lack protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7401877A JPS548845A (en) 1977-06-21 1977-06-21 Phase-lack protection device

Publications (1)

Publication Number Publication Date
JPS548845A true JPS548845A (en) 1979-01-23

Family

ID=13534940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7401877A Pending JPS548845A (en) 1977-06-21 1977-06-21 Phase-lack protection device

Country Status (1)

Country Link
JP (1) JPS548845A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01144816U (en) * 1988-03-29 1989-10-04
GB2588631A (en) * 2019-10-29 2021-05-05 Tavrida Electric Holding Ag Voltage sensor for electrical switchgear and electrical switchgear comprising same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01144816U (en) * 1988-03-29 1989-10-04
GB2588631A (en) * 2019-10-29 2021-05-05 Tavrida Electric Holding Ag Voltage sensor for electrical switchgear and electrical switchgear comprising same
GB2588631B (en) * 2019-10-29 2022-03-23 Tavrida Electric Holding Ag Voltage sensor for electrical switchgear and electrical switchgear comprising same
US12087524B2 (en) 2019-10-29 2024-09-10 Tavrida Electric Holding Ag Voltage sensor for electrical switchgear and electrical switchgear comprising same

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