Substations primarily consist of transformers, switches, protection devices, and control equipment.
1. Transformer
Transformers are crucial components of substations, converting high-voltage electrical energy into low-voltage energy to meet consumer needs. Transformers come in two types: generator transformers and load transformers.
2. Switches
Switches control the connection and disconnection of substation circuits. Switches transfer power from one transmission line to another, managing the circuits during power transmission.
3. Protection Devices
Protection devices are a crucial component of substations, primarily protecting and monitoring substation control equipment, transformers, and other equipment. They can promptly detect and disconnect circuit faults, preventing accidents.
4. Control Devices
Control devices are a core component of substations, primarily monitoring and controlling the power system. They can manually or automatically connect and disconnect circuits, regulating and controlling the power system.



