After 35kv power supply is introduced into the power plant, the voltage is reduced to 10kv, and power is supplied to the power plant through the 35/10kv total drop power station in the plant area. 10kV is still a high-voltage power supply, which can't be used by workloads below 380V. it needs to be effectively stepped down manually before the load can be used. According to the layout and actual situation of the factory, a number of 10/0.4 kV workshop substations are set up in the factory to supply power to the loads below 380 volts in the workshop. For workshop substations with important secondary load and great capacity influence, we need to use two transformers to supply power to ensure the reliability of enterprise power supply. The design combines the actual situation of the factory and the load demand of each workshopAfter 35kv power supply is introduced into the power plant, the voltage is reduced to 10kv, and power is supplied to the power plant through the 35/10kv total drop power station in the plant area. 10kV is still a high-voltage power supply, which can't be used by workloads below 380V. it needs to be effectively stepped down manually before the load can be used. According to the layout and actual situation of the factory, a number of 10/0.4 kV workshop substations are set up in the factory to supply power to the loads below 380 volts in the workshop. For workshop substations with important secondary load and great capacity influence, we need to use two transformers to supply power to ensure the reliability of enterprise power supply. The design combines the actual situation of the factory and the load demand of each workshop