Substation 500kv/50ka Advanced Lightning Arrestor Porcelain Surge Arrester

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Quick Details

Product Name:

Substation 500kv/50ka Advanced Lightning Arrestor Porcelain Surge Arrester

Model NO.:

Y20W5-444

Material:

Silicon Rubber, Polymer, Porcelain

Application:

High Voltage Substation

Type:

High Voltage 20ka Surge Arrester

Keyword:

Polymeric Lightning Arrester 20ka

Delivery Time:

Shipped in 25 Days After Payment

Rated Voltage:

444kv

Certificate:

ISO9001:2008, Kema

Nominal Current:

20ka

Line Discharge Level:

Color:

Grey, Brown, Red

Trademark:

YONGDE

Transport Package:

Carton/Wooden Case

Origin:

Zhejiang, China (Mainland)

Product Details

0.28kV~500kV Surge Arresters’ 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.

Surge Arresters Technical Parameters:

Type	Y20W5-444/1090
Rated voltage———kV	444	4/10μS High current impulse kA	120
MOCV —————-kV	355	Lightning impulse withstand kV	1550
Nominal Current——-kV	20	Power frequency voltage withstand(dry/wet)kV	/
Residual voltage of steep impulse—-at 5kA(kV)	1257	0.1S TOV————–kV	532.8
8/20μS Residual voltage of lightning impulse current kV(Peak value)—–at 5kA(kV)	1046	1S TOV—————-kV	510.6
Residual voltage of switching impulse current kV (peak value)—-at 1kA (kV)	837	10S TOV—————kV	488.4
1mA D.C reference voltage (kV)	628	1200S TOV————-kV	444
Line discharge level	4	Creepage distance —-mm	17052
2mS long duration impulse current A	1300	Material employed in series non-linear resistor	Zinc Oxide

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