Reactor circuit breaker screen and scram control method thereof

A technology of emergency shutdown and circuit breaker, which is applied in the field of reactor circuit breaker panel and its emergency shutdown control, and safety-level electrical equipment, can solve the problem of high probability of accidental shutdown, achieve convenient operation and maintenance, and facilitate regular testing, The effect of easy operation

Inactive Publication Date: 2012-10-17
NUCLEAR POWER INSTITUTE OF CHINA
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This design is characterized by a simple structure, b

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  • Reactor circuit breaker screen and scram control method thereof

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Embodiment 1

[0026] Such as figure 1 shown. The reactor circuit breaker panel is mainly composed of 8 circuit breakers divided into four pairs according to the control signal, RPA100JA and RPA101JA are a pair, RPA200JA and RPA201JA are a pair, RPB100JA and RPB101JA are a pair, RPB200JA and RPB201JA are a pair; Four pairs of circuit breakers are respectively connected to the reactor protection system through four signal channels;

[0027] The 8 circuit breakers are connected in series and parallel, and the sequence of them in series is RPA100JA, RPA200JA, RPB101JA, RPB201JA, RPB200JA, RPB100JA, RPA201JA, RPA101JA; wherein, the connection point of RPA200JA and RPB101JA is connected with the connection point of RPA100JA and RPA101JA , the connection points of RPB201JA and RPB200JA are connected with the connection points of RPB100JA and RPA201JA, and the connection points of RPA100JA and RPA200JA are connected with the stick power system and receive power from the stick power system, and the...

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Abstract

The present invention discloses a reactor circuit breaker screen and a scram control method thereof. The reactor circuit breaker screen mainly comprises 8 circuit breakers divided into four pairs according to control signals, wherein RPA100JA and RPA101JA are adopted as a pair, RPA200JA and RPA201JA are adopted as a pair, RPB100JA and RPB101JA are adopted as a pair, and RPB200JA and RPB201JA are adopted as a pair. According to the present invention, 4 pairs of the circuit breakers are adopted, only if at least two pairs of the circuit breakers are concurrently disconnected, the reactor shutdown can take place, such that the probability of shutdown faults are substantially reduced, and the system availability is improved; operators are not required to operate on the spot; during a periodic test, a periodic test of one pair of the circuit breakers can be completed by only operating corresponding test buttons in a control room, such that the operation is convenient; and control circuits of 4 pairs of the circuit breakers are the completely same, such that operation and maintenance are convenient.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant reactor protection, in particular to a safety-level electrical device for executing a trip command of a reactor protection system, that is, a reactor circuit breaker screen and an emergency shutdown control method thereof. Background technique [0002] The reactor circuit breaker panel of nuclear power plant is a safety-level electrical equipment and an integral part of the reactor protection system. In the operation of nuclear power plants, circuit breakers are required to have high reliability and stability, neither false operation nor refusal to operate. In the design of nuclear power plants such as Ling Ao Phase I, Daya Bay and Qinshan Phase II, four circuit breakers are used in the circuit breaker panel, two of which are main circuit breakers, and these two circuit breakers are mainly put into operation when the units are in normal operation; Two are bypass circuit breakers, whic...

Claims

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Application Information

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IPC IPC(8): G21C7/36
CPCY02E30/39Y02E30/30
Inventor 韩勇刘文静刘飞洋游洲李朋
Owner NUCLEAR POWER INSTITUTE OF CHINA
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