JPS54132739A - Switching device of bus bar - Google Patents

Switching device of bus bar

Info

Publication number
JPS54132739A
JPS54132739A JP3970078A JP3970078A JPS54132739A JP S54132739 A JPS54132739 A JP S54132739A JP 3970078 A JP3970078 A JP 3970078A JP 3970078 A JP3970078 A JP 3970078A JP S54132739 A JPS54132739 A JP S54132739A
Authority
JP
Japan
Prior art keywords
voltage
bus
relay
difference
voltage difference
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
JP3970078A
Other languages
Japanese (ja)
Inventor
Toshiomi Shimonaka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3970078A priority Critical patent/JPS54132739A/en
Publication of JPS54132739A publication Critical patent/JPS54132739A/en
Pending legal-status Critical Current

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  • Supply And Distribution Of Alternating Current (AREA)

Abstract

PURPOSE: To intend to detect quickly electric source loss, by making breader of bus tie with phase relay, when phase gap of bus voltage is slow in the condition of output of voltage difference relay at over a specified value of input voltage difference.
CONSTITUTION: When transmission breaker in A system is tripped by outside trouble and the like of receivig breaker 13, residual voltage is remained in bus 15 of A system, bus 16 of B system is with sound voltage, voltage difference among both voltages is vector difference between residual voltage and sound voltage, and if residual voltage is perfectly attenuated, input of voltage difference relay 22 is voltage of only B system. And, when both buses 15, 16 are sound, voltage differece is nearly zero. From this, when voltage difference is over a specified value, it is detected as electric source loss by the voltage difference relay 22, contact point 22a is closed, phase relay 23 is made to be operated, phase difference between buses 15, 16 is detected, bus tie breaker 17 is made witha suitable timing, and switching of bus can be automatically and rapidly done.
COPYRIGHT: (C)1979,JPO&Japio
JP3970078A 1978-04-06 1978-04-06 Switching device of bus bar Pending JPS54132739A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3970078A JPS54132739A (en) 1978-04-06 1978-04-06 Switching device of bus bar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3970078A JPS54132739A (en) 1978-04-06 1978-04-06 Switching device of bus bar

Publications (1)

Publication Number Publication Date
JPS54132739A true JPS54132739A (en) 1979-10-16

Family

ID=12560284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3970078A Pending JPS54132739A (en) 1978-04-06 1978-04-06 Switching device of bus bar

Country Status (1)

Country Link
JP (1) JPS54132739A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6013436A (en) * 1983-06-29 1985-01-23 三菱電機株式会社 Bus switching device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6013436A (en) * 1983-06-29 1985-01-23 三菱電機株式会社 Bus switching device

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