Composite insulator

Surge Arrester is a kind of overvoltage protector mainly applied for the protection of various electrical appliances in power sy Surge Arrester is a kind of overvoltage protector mainly applied for the protection of various electrical appliances in power system,railway electrification system and communication system from being damaged by atmosphere overvoltage,operation overvoltage and power frequency temporary overvoltage etc.The arrester is the basis of insulation coordination in power system.The core elements of metal oxide arreater(resistor disc)applies an advanced formulate with zinc oxide as the main material and has an outstanding nonlinear properties(voltage-ampere)That is ,under the normal operating voltage,the current passing through is only on microampere level.When overvoltage is incurred,the current passing through can be thousands of amperes instantly and the arrester is switched into conduction to release the energy of overvoltage.By this means the damage caused by overvoltage on the electric transmission and transformation equipments can be effectively restrained.The traditional silicon carbide arrestor has high steep wave discharging voltage caused by steep wave discharging and the operation wave discharging voltage is high caused by discharging decentrality.While the zinc oxide arreater has good steep wave response properties and make no delay on steep wave voltage and provide low residual voltage during operation;and also has the advantage of no discharging decentrality.The arrestor can greatly improve the protective margin of the tion wave.And on insulation coordination,the proactive margins of steep wave,lightening wave and operation wave are nearly consistent and best protection can be provided for the power equipments.Composite coating metal oxide arreater applies integrated extruding shaping and both-end envelopment techniques and can provide high performances of sealing and anti-explosion,pollution resistance,free of cleaning and reducing the wet flashover in foggy conditions.The product is also festured by electrical erosion resistance,aging resistance,small volume,light and easy installation and maintenance;and is the upgraded new generation product of porcelain sheath arrestor.

Purchase notice:1 the specifications and pattern of the bothside fitting2 the main dimension and rate voltage3 the colour of silicon rubber,usually it is red or gray4 other particular requirement

Note:

1 IEC,ANSI,GB and other international stardand is applicable2 it is usually red,gray and white.3 we can design and produce according to the drawings and characteristics