Medium-voltage mobile diesel power generator car for nuclear power plant

Abstract

The invention belongs to the technical field of mobile emergency power supplies in a nuclear power plant and particularly relates to a medium-voltage mobile diesel power generator car for the nuclear power plant. The medium-voltage mobile diesel power generator car for the nuclear power plant comprises a diesel engine, a power generator, a power generator outlet circuit breaker, a starting storage battery and a mobile car, wherein the starting storage battery is used for starting the diesel engine, the diesel engine is connected with the power generator through a coupling, output of the power generator is transmitted to peripheral equipment through the power generator outlet circuit breaker, the diesel engine, the power generator, the power generator outlet circuit breaker and the starting storage battery are installed on the mobile car and mobile power supply can be realized. The medium-voltage mobile diesel power generator car for the nuclear power plant solves the technical problem that the requirement that the large motor load starting voltage drop is less than or equal to 25 percent under the power-off state of the nuclear power plant cannot be met; the power generator voltage drop caused by motor starting can be reduced and the on-load requirement that the large motor load starting voltage drop in the power-off state of the nuclear power plant is less than or equal to 25 percent is met.

Description

technical field [0001] The invention belongs to the technical field of mobile emergency power supplies for nuclear power plants, and in particular relates to a medium-voltage mobile diesel generator vehicle for nuclear power plants. Background technique [0002] The emergency power supply of nuclear power plants is a necessary equipment to alleviate the power outage of the whole plant. After the Fukushima incident in Japan, the National Nuclear Safety Administration issued the "General Technical Requirements for Nuclear Power Plant Improvement Actions after the Fukushima Nuclear Accident (Trial)". According to regulations, nuclear power plants need to be equipped with mobile emergency diesel generator sets. [0003] According to the general diesel generator set design specification, according to the current parameter matching design of diesel engine and generator power is basically equal, that is, the power ratio of diesel engine and generator is less than or equal to 1:1, s...

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Problems solved by technology

[0008] The technical problem to be solved in the present invention is: the diesel generator in the prior art, the power ratio of the diesel engine and the generator is less than or equal to 1:1, which cannot meet the requirement that the starting voltage drop of the large motor load of the nuclear power plant is ≤25% in the power-off state , that is, the generator voltage drop caused by the motor starting is too large

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