lightning arrester

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Protection of medium/hiah yoltage AC networks against both, multiple atmospheric and switching overvoltages as well as Very Fast Transients (VFT). Suitable for the protection of transformers, transformers in arc furnace applications. cables. generators.parallel to capacitor banks, and railway vehicles. Can be used mechanically as support insulator or as suspension insulator in case of application as line arrester. For indoor and outdoor installation.


The metal-oxide surge arrester(MOSA) is the most advanced overvoltage protector in the word. Due to make the varistor of core com- ponent mainly adopt MOSA. Compared with the conventional silicone carbide arrester, this prescription of the product improves greatly the Voltage-Current(U-I) characteristic of the metal-oxide varistor and increased through-current capability at over-voltage so as to bring a radical-changes for the characteristic of the MOSA. Under the circumstance of normal operating voltage, the current through the MOSAjust on microampere degree. When suffered from overvoltage, the MOSA's excellent non-linear characteristic will make the current through the MOSA increase to several thousand ampere, While the MOSA will be under the circulating state and release overvoltage energy so as to protecting the power transmission equipments against the damage caused by the overvoltage. 

Usual service condition

a) Ambient air temperature within the range of -55℃ to +50℃.

b) Altitude not exceeding 2000m.

c) Frequency of the A.C. power supply not less than 48Hz and not exceeding 62Hz.

d) Power frequency voltage applied continuously between the terminals of the arrester not exceeding its continuous operating voltage.

e)Maximum wind speed not exceeding 35m/s.

f ) Earthquake intensity not exceeding 7 degrees. 


- Low residual voltage

- Long protection distance

- High energy input capacity

- Stable U-I characteristic even after multiple strokes

- Proof against ageing

- Explosion and shatter-resistant design

- Pollution resistant and UV-stable

- Housing resistant to rough handling

- Maintenance free

- Stable against shock and vibration

- High mechanical resistance 

Technical Performance

The technical performance of metal-oxide surge arrester is accord with IEC60099-4,IEEE(ANSI) C62.11and GB11032. 

Company profile
Zhejiang Xikai Electric Co., Ltd engineers and manufactures medium- high-voltage electric
equipment, components and systems that deliver reliable electric power to homes, industries,
businesses, and institutions worldwide. We are a leader in providing load break switch, vacuum
circuit breaker, isolating switch that enable customers to increase productivity, improve system
reliability and reduce costs.
Our products, services, and solutions are used worldwide for public, commercial, and industrial
power systems. Our products had passed the test at Ministry of Power Industry of PRC and
Electric Power Research Institute of PRC.
As a global manufacture, Zhejiang Xikai Electric Co., Ltd provides a wide range of
forward-looking solutions including Power Systems Protection, Distribution System Reliability
and Power Quality products and services. Through our commitment to research and development,
we continue to develop smart solutions for safe, reliable, environmentally friendly power
Our products include indoor high voltage load break switch, vacuum load break switch, circuit
breaker; outdoor high voltage load break switch, circuit breaker; high voltage earthing switch;
high voltage isolating switch and fuse.
We offer our customers integrated protective solutions using innovative products combined with
unrivalled service and reliability world wide



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