Outdoor High Voltage Electrical Equipment Supplies Porcelain ZnO Surge Arrestor

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Product Name:

Outdoor High Voltage Electrical Equipment Supplies Porcelain ZnO Surge Arrestor

Model NO.:

Y20W5-444

Application:

High Voltage

Standard:

IEC

Delivery Time:

21days Per Container

Rated Voltage:

444kv

Arrester Housing Material:

Composite Polymer or Ceramic Porcelain

Valve Disc of Arrester:

ZnO Varistor

Accessory:

Bracket,Insulating Cap

Creepage Distance:

17052mm

Nominal Current:

20ka

Color:

Gray, Brown

Trademark:

YONGDE

Transport Package:

Carton+Wooden Case

Origin:

Zhejiang, China (Mainland)

HS Code:

853310000

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

Surge Arrester Working Condition:

Low Voltage Lightning Arrester
Working condition:	Environment temperature: -40–+40 degree
	altitude:<1000m
	48HZ<Rated frequency<62HZ
	Power frequency voltage should not be more than continuous running voltage
	Max wind speed should be less than 35m/s
	Earthquake intensity should be less than 7 degree
	If used in contamination area, should be noted in advance.

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