Automatic shutdown method and system for cooling system of nuclear power transformer
A technology for cooling systems and transformers, applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as the discount of fire extinguishing system efficacy and the expansion of the fire trend of the main transformer, so as to avoid accidents and loss expansion, and reduce false outages. risk, the effect of improving accuracy and reliability
Pending Publication Date: 2022-07-29
SUZHOU NUCLEAR POWER RES INST +2
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This will take a certain amount of time, during which time the operation of the main transformer cooling system will cause the fire tendency of the main transformer to expand, making the effectiveness of the fire suppression system greatly reduced
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[0038] In order to have a clearer understanding of the technical features, objects and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0039] It should be noted that, the flowcharts shown in the accompanying drawings are only exemplary descriptions, and do not necessarily include all contents and operations / steps, and do not necessarily have to be executed in the described order. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may be changed according to the actual situation.
[0040] In view of the high fire hazard of nuclear power transformers, it is necessary to consider the reliability of the fire-related systems under the operating conditions of the transformers and the shutdown conditions. system, reference figure 1 , The present invention provides a method ...
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The invention discloses an automatic shutdown method and system for a cooling system of a nuclear power transformer. The method comprises the following steps: S10, acquiring a real-time monitoring signal of the nuclear power transformer; s20, judging whether a fire occurs in the nuclear power transformer area or not according to the real-time monitoring signal, or judging whether the nuclear power transformer is in a shutdown state or not according to the position of a circuit breaker in the nuclear power transformer, if any judgment result is yes, executing the step S30, and if not, returning to the step S10; and S30, generating a cooling system shutdown signal. The accuracy and reliability of the fire monitoring system of the nuclear power transformer can be improved, the risk of mistaken shutdown of the cooling system can be reduced, and when it is determined that the fire occurs in the transformer area, the cooling system can be automatically shut down in time, the fire trend is prevented from being large and spreading, and then accidents and loss expansion are avoided.
Description
technical field [0001] The invention relates to the technical field of nuclear power transformer control, in particular to a method and system for automatic shutdown of a nuclear power transformer cooling system. Background technique [0002] During the operation of the nuclear power transformer, the temperature of the transformer will rise, and when the temperature of the transformer is too high, it will cause a fire. According to the structural characteristics of nuclear power transformers, the main reasons for the explosion and fire are as follows: the aging and deterioration of the transformer oil causes internal flashover breakdown, the damage to the coil insulation layer causes the short circuit to cause the coil to heat up, and the poor contact at the coil connection causes high temperature, looseness or disconnection. Arc, bushing damage burst or water leakage, insulation breakdown caused by damage or aging of bushing insulation layer, transformer suffered lightning ...
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IPC IPC(8): G05B19/048
CPCG05B19/048
Inventor 杨中卿黄立军张圣凌霜寒
Owner SUZHOU NUCLEAR POWER RES INST