Ziyang substation: project introduction

Ziyang 500kV substation is located in gongqiao village, fengyu town, yanjiang district, ziyang city, sichuan province. Residents' sensitive points are distributed around the station area, among which the closest sensitive points are less than 20m away from the factory boundary. Substation noise consists of power transformer noise and high voltage shunt reactor noise. The noise of power transformer mainly consists of two parts: electromagnetic noise caused by magnetostrictive vibration of iron core; Mechanical and airflow noise generated by cooling fans. The noise of high voltage shunt reactor mainly consists of two parts: electromagnetic noise caused by magnetostrictive vibration of the core. The noise generated during the operation of the substation exceeds the environmental protection requirements, so it is necessary to reduce the noise.

Treatment measures:

The sound barrier is installed around the periphery of the substation, and the lower part of the sound barrier is reserved with a ventilation muffler. The sound barrier is made of perforated aluminum plate, centrifugal glass wool, hydrophobic fiberglass cloth, h-beam steel column, outer plate and other materials. The surface is treated with plastic spraying and baking paint.

Governance effect:

The noise at each station boundary satisfies the 2 standards of environmental noise emission standard for industrial enterprise boundary gb12348-2008. Namely, daytime ≤60dB(A) and night ≤50dB(A).