What is the function of lightning arrester on motor?_Wolong Nanyang Explosion-proof Motor, China Motor Manufacturer

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What is the function of lightning arrester on motor?

source：未知 time：2025-01-03 16:36nbsp; click：

As an indispensable and important equipment in industrial production, the stable operation of the motor is crucial to production efficiency and equipment safety. However, natural disasters such as lightning often cause great damage to the motor. So, what is the role of the arrester equipped on the motor?

The arrester is a protective electrical appliance used to protect the power system from overvoltage hazards. The motor is equipped with a lightning arrester mainly to limit the phase-to-phase overvoltage and prevent the damage to the motor caused by the inductive power frequency operation overvoltage. When the motor encounters a lightning intrusion wave or an operating overvoltage during operation, the arrester can act quickly to discharge the overvoltage to the ground, thereby protecting the motor from damage.

The main types of lightning arresters include tube-type lightning arresters, valve-type lightning arresters, and zinc oxide lightning arresters. Among them, zinc oxide lightning arresters are widely used in motor protection due to their good nonlinear voltage limiting elements and ability to absorb overvoltage.

In addition, the motor is equipped with a lightning arrester. There are the following advantages:

Improve the insulation strength of the motor: the arrester can limit the phase-to-phase overvoltage, reduce the impact on the motor insulation system, and thus improve the insulation strength.

Reduce the risk of failure: Lightning arresters can effectively limit lightning intrusion waves and operating overvoltage, reduce the risk of motor failure, and ensure the stability and continuity of production.

Extend the service life of the motor: By protecting the motor from overvoltage, the lightning arrester helps to extend the service life of the motor and reduce the maintenance cost of the equipment.

In short, equipping the motor with a lightning arrester is an effective protection measure that can minimize the damage to the motor caused by lightning and overvoltage and ensure the safe and stable operation of the motor. Users should choose a suitable lightning arrester according to the actual situation and perform regular maintenance and inspection to ensure the protection effect of the lightning arrester.

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