JPS54132739A - Switching device of bus bar - Google Patents
Switching device of bus barInfo
- 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
Links
Landscapes
- 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
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)
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 |
-
1978
- 1978-04-06 JP JP3970078A patent/JPS54132739A/en active Pending
Cited By (1)
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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