JPH02155134A - Throw-in command circuit for breaker - Google Patents

Throw-in command circuit for breaker

Info

Publication number
JPH02155134A
JPH02155134A JP31031388A JP31031388A JPH02155134A JP H02155134 A JPH02155134 A JP H02155134A JP 31031388 A JP31031388 A JP 31031388A JP 31031388 A JP31031388 A JP 31031388A JP H02155134 A JPH02155134 A JP H02155134A
Authority
JP
Japan
Prior art keywords
breaker
throw
auxiliary
auxiliary relay
contact
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
JP31031388A
Other languages
Japanese (ja)
Inventor
Tetsuji Sekiya
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 JP31031388A priority Critical patent/JPH02155134A/en
Publication of JPH02155134A publication Critical patent/JPH02155134A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To avoid burning of a breaker throw-in coil by breaking a throw-in command current flowing through the coil of the second auxiliary relay having the current breaker capacity larger than that of the first auxiliary relay with the use of an auxiliary contact which is opened or closed according to operation of the breaker.
CONSTITUTION: There are provided the first auxiliary relay 2 of high speed operation type which is energized by switching of a throw-in command contact 1, and the second auxiliary relay 3 of current energizing type having the current breaker capacity larger than that of the first auxiliary relay 2 which is energized by closing the output contact 2a of the first auxiliary realy 2. Further, there are provided the auxiliary contact 4a of the breaker which is connected to the second auxiliary relay 3 in series and closed according to operation of the breaker, and a breaker throw-in coil 4 which is connected to the auxiliary contact 4a of the breaker in series. The output contact 3a of the second auxiliary relay 3 is connected in parallel to the output contact 2a of the first auxiliary relay 2. Thus, the high speed closing is ensured and the output contact 2a is protected, while it is prevented that current is applied in the second auxiliary relay 3 for a long time, to thereby avoid burning of the breaker throw-in coil.
COPYRIGHT: (C)1990,JPO&Japio
JP31031388A 1988-12-07 1988-12-07 Throw-in command circuit for breaker Pending JPH02155134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31031388A JPH02155134A (en) 1988-12-07 1988-12-07 Throw-in command circuit for breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31031388A JPH02155134A (en) 1988-12-07 1988-12-07 Throw-in command circuit for breaker

Publications (1)

Publication Number Publication Date
JPH02155134A true JPH02155134A (en) 1990-06-14

Family

ID=18003719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31031388A Pending JPH02155134A (en) 1988-12-07 1988-12-07 Throw-in command circuit for breaker

Country Status (1)

Country Link
JP (1) JPH02155134A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS455809Y1 (en) * 1966-10-25 1970-03-20
JPS631394U (en) * 1986-06-20 1988-01-07

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS455809Y1 (en) * 1966-10-25 1970-03-20
JPS631394U (en) * 1986-06-20 1988-01-07

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