1. About Surge Arrester 

YONGDE Surge Arresters can be applied to a variety of systems including substation equipment,

railway power system and power distribution units ranging from 0.28kV to 500kV systems.
These surge arresters demonstrate excellent protection properties. Our surge arresters incorporate

non-linear resistor ZnO elements with superior non-linear current- voltage characteristics,

high quality and reliability. Metal oxide type surge arresters offer such special features
inherent in the gapless structure, such as a quick response to surge voltage,

high energy dissipation capability, safe operation, compactness / lightweight and freedom from pollution.

0.28~500 KV Product's Characteristics: 
1. The Core column applied winding structure, Polymer Housed core pillar molded on the core column, 

with almost no internal air gap, and outstanding sealing performance Simple in structure, small in size 

and light in weight. 

2. Polymer Housed with silicone rubber, explosion-proof ZnO varistor as the core component is large

in flow capacity.

3. International standard IEC 60099-4 and ANSI 62.22, and with high reliability. With fully insulated tops,

the product can be applied to the complete cabinet installation, 

which can reduce the designing size of cabinet. 

4. Products with detachment device can provide signals for quitting operation when failure occurs,

avoiding arrester explosion, and it is maintenance-free. 
5. Polymer housed products with a six CTI level, creepage distance meets the requirements of IV level

in heavy pollution areas.

2. Surge Arrester Technical Parameters

GW16-72.5~245 semi pantograph disconnector Characteristics: 

It has the property of compact structure, advanced, clean appearance, beauty, Reliable property, economical.

After tripping, the vertical contact don't take up the space, especially adapt to the site that the entering line and exit line vertical different height. 
Terminal block and conductive rod is made by casting aluminum alloy and aluminum alloy section, having the advantage of high-intensity,good flowing and good anti-corrosion. 

Adapt to site's different laying way: One Line laying, 45° Laying, 135° Laying and so on 
In the galvanic circle, the section is the combination structure made by screw fix linking, having the good property of stable flowing, high reliability, simple change way and convenient adding volume way. 
In the galvanic circle, the contact and finger is made by T2Y pure copper tap whose connecting part is coated by 30μ M silver.
Finger spring is made by the stainless steel and its design is the inside hiding and outside press structure which is convenient for testing and changing 
All the operating rod and linking rod are supplied by manufacturer, which is convenient for loading, adjusting and testing. 
It can be supplied as a whole above the ground according to user's requirement.