The power distribution project is mainly composed of the main power transformation and distribution device and the measurement and control system, which is an important part of the power grid and an important part of power transmission. It plays an important role in ensuring the safe operation of power grid. The electric power installation company's substation is used to carry out the transmission and distribution of electric energy tasks of the circuit called primary circuit or electrical main wiring.
At present, China has formed a complete management system of relay protection, design, operation and manufacturing, with a number of information technology-based manufacturing enterprises, which can provide all kinds of network equipment required by 500kV and below power grids. After different stages of development, each manufacturer also began to form a unique product, and for the design principles and technical performance is more suitable for the needs of China's power grid.
The power engineering construction company introduces to you the layout requirements of power distribution engineering and power distribution project
1. It is convenient for operation, management, maintenance and overhaul. Some people think that a separate duty room should be set up in the substation on duty. The duty room should be close to the high and low voltage distribution room as far as possible, and the door should be straight through. For power transformation and distribution stations on duty day and night, it is advisable to set up rest rooms and drainage infrastructure for water supply system. Sufficient safety net distance and operator maintenance channel shall be reserved for electrical control devices such as transformer, high and low voltage switch cabinet.
2. It is easy to get in and out of the line. If it is a high voltage overhead incoming line, the high voltage distribution room should be located at the incoming line side. In general, different rectangular bare buses can be used. Therefore, the installation position of the transformer should be close to the low-voltage distribution room. Low voltage distribution should be located at the outlet side.
3. Ensure the security of operation information. The doors of high and low voltage distribution room and capacitor of power distribution project shall be opened towards duty room or outward. When the substation is designed with this double-layer structure, the transformer should be set at the bottom. When there are many high voltage control capacitor banks, they should be installed in a separate room.
4. The dimensions of the live parts away from the wall and the ground, and the width of the maintenance operation channel in each room shall meet the requirements of relevant regulations to ensure safe operation. The substation installed with electric power shall be equipped with facilities to prevent rain, snow and small animals from entering the room from the lighting room. In addition, the substation distribution project should also consider fire protection, ventilation and other requirements.
