The three phase combination jacket protector has excellent protection performance and is used to protect the electrical equipment of the AC system from overvoltage. A three phase combined protector can replace six ordinary Zinc Oxide arresters, which can make electrical equipment protected from overvoltage and interphase operation, which is not comparable to ordinary Zinc Oxide arresters.

The protection of power plants and substations can be widely used in the indoor and outdoor types of the product. Rotary motor, line and other communication equipment, and can protect the capacitor group, electric steelmaking furnace equipment, can be used alone. It can also be used in the distribution cabinet with other equipment.

1.1 the environment temperature is -40 C +40 C;

1.2 the altitude is not more than 1000mm;

1.3 the frequency of power supply is not more than 62HZ, not less than 48HZ.

1.4 the maximum wind speed is not more than 35m/s;

1.5 earthquake intensity below 7 levels;

1.6 apply stains area.