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Professional production of prefabricated compartments and energy storage containers for substations
24
2023
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04
The role of substations
A substation is a place in a power system that transforms voltage and current, receives electrical energy and distributes it. The substation in the power plant is a step-up substation, whose role is to step-up the electrical energy from the generator and feed it into the high-voltage grid.
1, a class of substations. It refers to the AC ultra-high voltage station, nuclear power, large energy base (3 million kw and above) outgoing and cross-region (North China, Central China, East China, Northeast China, Northwest China) liaison 750/500/330kV substation.
2、Second-class substations. It refers to other than the first class substations, 750/500/330kV substations, power plant outgoing substations (1 million kW and above, 3 million kW and below) and cross-province liaison 220kV substations, main transformer or bus outage, switch rejection caused by the fourth level and above grid events.
3, three types of substations. Refers to 220kV substations other than the second category, power plant outgoing substations (300,000kW and above, 1 million kW or less), main transformer or bus outage, switch rejection caused by a five-level grid event substations, substations directly supplying power to important users at the first level and above.
4, four types of substations. It refers to the 35kV and above substations other than the first, second and third categories.
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