What is the role of zinc oxide arrester manufacturers

Metal Oxide Lightning Arrester in 10kV Distribution Network

The main function of lightning arrester is to protect electrical equipment from lightning intrusion wave overvoltage and operating overvoltage from damage to the insulation of its equipment.

Selection of zinc oxide arrester:

Points for Attention in the Selection of Lightning Arrester

First of all, pay attention to the place of use in the selection. Different places have different models of arrester manufacturers.

Power distribution type:

To protect the switchgear, transformers, box-type transformers, cable heads and other related power distribution equipment of the corresponding voltage level from damage from the atmosphere and operating overvoltages, it is advisable to choose "HY5WS" metal oxide arresters. High-voltage current-limiting fuse

Power station type:

To protect AC electrical equipment in power plants and substations from atmospheric overvoltage and operating overvoltage damage, you can choose "HY5WZ" or "Y5WZ" type;

Motor type:

Limit the overvoltage generated when the vacuum circuit breaker or the oil-less circuit breaker is switched on and off the rotating motor, and protect the rotating motor from the damage of the operating overvoltage. You can choose the "HY2.5WD" or "Y2.5WD" type; drop-out fuse

Capacitor type:

Suppress the overvoltage generated by the operation of the vacuum circuit breaker or the oil-less circuit breaker and protect the capacitor group from the damage of the operation overvoltage. The "HY5WR" type can be selected.

The basic principle of zinc oxide arrester: (European cable joint)

Zinc oxide arrester is an ideal overvoltage protector in the world at present. It uses zinc oxide resistor as the main element. Compared with the traditional silicon carbide arrester, it greatly improves the volt-ampere characteristics of the resistor, and improves the current capacity. Make a gapless arrester. Therefore, a fundamental change in the structural characteristics of electrical appliances has been brought about.

When the arrester is under normal working voltage, the current flowing through the arrester is only microampere. When it is subjected to overvoltage, the excellent non-linear characteristics of the arrester play a role. The current flowing through the arrester reaches thousands of amperes, and the arrester is in a conducting state. ，Release the over-voltage energy, thereby preventing the over-voltage from infringing on the power transmission and transformation equipment.

Yichang Hengyuan Technology Co., Ltd. is a professional manufacturer of European-style cable connectors, plug connectors, cable branch boxes, American elbows, high-voltage vacuum circuit breakers, high-voltage load switches, lightning arresters, zinc oxide arresters, tank arresters, overvoltage protectors, Counters, monitors, heat-shrinkable cable accessories, cold-shrinkable cable accessories, T-heads, wall bushings, European cable accessories, American cable joints, transformer neutral point protection devices, fuses, isolating switches, PT cable heads, elbows Manufacturers of type cable joints, 10kV outdoor terminals, switch cabinets, cable intermediate joints, cable accessories and other products