220kV inner bridge wiring transformer substation circuit breaker failure relay protection method
The invention discloses a 220kV inner bridge wiring transformer substation circuit breaker failure relay protection method. The method is applied to a 220kV inner bridge wiring transformer substation, is simple in action principle and high in reliability aiming at the condition that a 220kV circuit...
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Main Authors | , , , , , , , , , , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
22.06.2021
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a 220kV inner bridge wiring transformer substation circuit breaker failure relay protection method. The method is applied to a 220kV inner bridge wiring transformer substation, is simple in action principle and high in reliability aiming at the condition that a 220kV circuit breaker and a 220kV inner bridge circuit breaker fail, and is a relay protection method capable of quickly removing a fault by tripping off a circuit breaker adjacent to the failed circuit breaker. According to the method, circuit breaker protection devices are arranged on three circuit breakers of an inner bridge line respectively, the corresponding circuit breaker failure protection logic function is achieved through the protection devices, and the protection devices are matched with transformer protection and line protection, so that the adjacent circuit breakers of the failure circuit breakers are tripped off to remove faults, the relay protection function for the failure of the circuit breaker of the 220kV inn |
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Bibliography: | Application Number: CN202110498727 |