JPS6485520A - Open-phase breaker - Google Patents

Open-phase breaker

Info

Publication number
JPS6485520A
JPS6485520A JP24206587A JP24206587A JPS6485520A JP S6485520 A JPS6485520 A JP S6485520A JP 24206587 A JP24206587 A JP 24206587A JP 24206587 A JP24206587 A JP 24206587A JP S6485520 A JPS6485520 A JP S6485520A
Authority
JP
Japan
Prior art keywords
phase
open
contact
signal
detecting means
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
JP24206587A
Other languages
Japanese (ja)
Other versions
JPH0828936B2 (en
Inventor
Yoshihisa Ishigami
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP62242065A priority Critical patent/JPH0828936B2/en
Publication of JPS6485520A publication Critical patent/JPS6485520A/en
Publication of JPH0828936B2 publication Critical patent/JPH0828936B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE:Te simplify a composition and lower a cost, by using a one-shot circuit for setting open-phase detecting signal to be pulse signal, to form an open-phase detecting means, and by inserting an auxiliary contact into a detection line connected to an N-phase from said detecting means. CONSTITUTION:By the abnormal voltage of a single phase three-line system power wire, open-phase is detected, and by open-phase detecting signal, the switch means of a thyristor SCR is turned ON, and the trip coil L of a main contact S1 is excited, and an open-phase breaker A is formed so that the main contact S1 may be released. Then, a one-shot circuit MM1 for setting the open- phase detecting signal to be pulse signal is used to form an open-phase detecting means, and at the time of detecting the open-phase, the trip coil L is excited, and into a detection line lN connected to N-phase, a normally-closed type auxiliary-contact S2 interlocked with the main contact S1 is inserted. Then, without increasing the number of contacts, a counter-contact can be set, and a composition is simplified, and a cost is reduced.
JP62242065A 1987-09-26 1987-09-26 Phase breaker Expired - Lifetime JPH0828936B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62242065A JPH0828936B2 (en) 1987-09-26 1987-09-26 Phase breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62242065A JPH0828936B2 (en) 1987-09-26 1987-09-26 Phase breaker

Publications (2)

Publication Number Publication Date
JPS6485520A true JPS6485520A (en) 1989-03-30
JPH0828936B2 JPH0828936B2 (en) 1996-03-21

Family

ID=17083757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62242065A Expired - Lifetime JPH0828936B2 (en) 1987-09-26 1987-09-26 Phase breaker

Country Status (1)

Country Link
JP (1) JPH0828936B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107732869A (en) * 2017-11-17 2018-02-23 国网山东省电力公司淄博供电公司 High supply and low meter load control engineering trip switch

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63149145U (en) * 1987-03-18 1988-09-30

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63149145U (en) * 1987-03-18 1988-09-30

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107732869A (en) * 2017-11-17 2018-02-23 国网山东省电力公司淄博供电公司 High supply and low meter load control engineering trip switch

Also Published As

Publication number Publication date
JPH0828936B2 (en) 1996-03-21

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