What is the multi-cavity arc blowing lightning protection device?

The multi-cavity arc blowing lightning protection device can effectively solve the lightning strike problem on the overhead lines of various wind farms.
Overhead lines are an important means of power transmission in wind farms. Because the insulation level of the line is relatively low, the proportion of the line caused by lightning strikes is serious in actual operation. Especially in areas with complex terrain such as minefields and mountains, it is more serious.

The lightning protection of overhead lines adopts differentiated configurations. The common ones are: overhead lightning protection lines, protection gaps, lightning protection fittings and insulators, zinc oxide arresters, etc. However, these traditional protection methods have their own obvious defects: for example, the construction of overhead lightning protection lines in low-voltage lines is difficult and costly, and generally only some lines are installed with lightning protection lines. The protective gap and lightning protection fittings can protect the insulators from being burned by arcs, but they cannot cut off the power frequency freewheeling and prevent the line from tripping. The zinc oxide arrester has higher requirements on grounding resistance, the valve plate is prone to moisture and aging, the failure rate is high and the maintenance is difficult.

For the lightning protection of overhead lines of wind farms, solving the power frequency freewheeling is the key, and the power frequency freewheeling can be cut off in a short time, the grounding resistance is not required, the failure rate is low, and the service life is long.

The multi-cavity arc blowing lightning protection device in the overhead line is characterized in that no special grounding is required, the power frequency freewheeling current can be cut off, the failure rate is low, and the service life is long. The application of the multi-cavity arc blowing lightning protection device plays a key role in the safe and stable operation of the wind farm, and is of great significance to the line operation and maintenance in the wind power aftermarket.