YH5WZ-51/134Q Gapless Lightning Arrester

overview

YH5WZ-51/134Q gapless Lightning Arrester is designed specifically for 10kV-220kV high-voltage transmission and transformation systems, and is a high-performance maintenance free lightning protection device. Adopting improved Zinc Oxide valve plates (ZnO) and reinforced composite silicone rubber jackets, it has better lightning overvoltage discharge capability (12kA, 8/20 μ s), significantly reducing lightning trip rate by more than 70%. Compliant with GB 11032-2000 (equivalent to IEC 60099-4) and JB/T 10497-2005 standards, suitable for extreme environments ranging from -45 ° C to+75 ° C, resistant to salt spray and industrial chemical corrosion, suitable for the following scenarios:

1.Strict industrial zone: V-level pollution tolerance, suitable for high pollution environments such as petrochemicals and metallurgy.

2.New energy stations: lightning protection for collection lines of wind farms and photovoltaic power stations.

3.Upgrade of old power grid: Compact design, compatible with existing towers or structures, without the need for infrastructure renovation.

Product Features

1. Small size, light weight, collision resistance, and flexible installation;

2. Special structure, integral molding, no air gap, good sealing performance, moisture-proof and explosion-proof;

3. Long creepage distance, good hydrophobicity, strong stain resistance, stable performance, and reduced operation and maintenance;

4. The unique formula of Zinc oxide Resistors has low leakage current, slow aging rate, and long service life.

5. The actual DC reference voltage, square wave current capacity, and high current withstand capability are all higher than the national standards.

Quality assurance

The company establishes, implements, and maintains a quality management system in accordance with the ISO9001 quality assurance model,

To ensure the high quality of products and services.

Resistance inspection items:

a. Square wave screening;

b. Residual voltage measurement under nominal discharge current;

c. Measurement of 1mA DC reference voltage;

d. Visual inspection;

Lightning arrester outlet inspection:

a. Sealing test;

B DC reference voltage U1mA test;

C. Direct leakage current test at 0.75U1ma;

d. Power frequency reference voltage test

e. Continuous current test

f. Partial discharge test;

Sampling test:

a. Accelerated aging test;

b. 4/10 μ S high current withstand test;

c. 2mS square wave capacity test;