The substation structure is a core facility of the power system, responsible for power transmission, voltage conversion (e.g., downgrading from 110kV on the high-voltage side to 10kV on the low-voltage side), and distribution.
It achieves voltage level conversion through a main transformer, controls the on/off state of switching equipment circuits, and uses protection devices (e.g., overcurrent protection with a response time ≤20ms) to monitor current/voltage parameters in real time and cut off faults. Metering equipment (accuracy ±0.5%) records power data to optimize system operation. This structure is directly related to grid stability, improving power supply reliability (e.g., reducing power outages by 30%) and supporting industrial power demand.
