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220kV Polymer Gapless Lightning Surge Arrester For Transformer Neutral Point

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220kV Polymer Gapless Lightning Surge Arrester For Transformer Neutral Point

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Brand Name :	Xi'an Shendian
Model Number :	YH1.5W-144/320
Certification :	IEC 60099-4/ GB 11032
Price :	To be determined by type and quantity.
Payment Terms :	T/T; L/C.
Supply Ability :	0.5M pc/year.
Delivery Time :	Ex-work 1 week~1 month depends on quantity.

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220kV Polymer Gapless Lightning Surge Arrester For Transformer Neutral Point

220kV TR Neutral Point Polymer Gapless Surge Arrester

Product introduction:

Polymer-housed metal oxide surge arrester (MOA) combines advantages of organic insulation material and porcelain-housed MOA. It is of good electrical performance, high dielectric strength, resistance to high/low-temperature, to aging, as well as explosion-proof, excellent chemical stability, and hydrophobicity. Polymer housing is made of high-quality silicone rubber, formed by integral moulding and curing process which benefites sealing performance, service life and lead time.

Metal oxide varistors are wrapped and fixed by PBT, after that a varistor rod shall be processed by vulcanizing machine into a completed surge arrester. This kind of uniq technics greatly improves SA electricl performance and shorten production time.

Advantage:

1/ Low partial discharge;

2/ Low residual voltage;

3/ High dielectric insulation level;

4/ Tolerance to high/low temperature;

5/ Explosion-proof;

6/ Anti-corrosion;

7/ Anti-aging;

8/ Shorter lead time (Ex-work 1 week+).

Standard Technical Data:

Below info. only for your reference, all data shall be specified and determined by technical specification and customer demand.

Item	Description		Offered
1	Manufacture/ Country of Origin		Xi'an Shendian/ China
2	Model		YH1.5W-144/320
3	Applicable standard		IEC 60099-4
4	Type		Outdoor, ZnO, gapless
5	Norminal voltage of system	kV	220
6	Earthing system		Effectively earthed
7	Rated frequency	Hz	50/60
8	Rated voltage of SA	kV	144
9	Maximum continuous operating voltage	kV	72.5
10	Power frequency reference voltage	kV	130
11	- at reference current of Note: State peak value or rms.	mA (D.C)	1
11	- at reference current of Note: State peak value or rms.	mA (D.C)	1
12	Nominal discharge current	kA	1.5
13	(a) Lightning impulse	kV	≤320
13	(b) Switching impulse	kV	≤299
14	Material employed in series non-linear resistor		ZnO etc.
15	- Material		Polymer
15	- Minimum creepage distance	mm/kV	25/31
16	- HV terminal		hot zip screw
16	- earth terminal		hot zip screw
17	Diameter of bushing sheds	mm	195
18	Height	mm	1296

Schematic diagram:

Reference:

1/ Shendian MOA is widely used in China EHV (Extra hight voltage) projects of State Grid, Southern Power Grid.

2/ Supplied MOA to ABB/Siemens/Schneider more than 20 years, as well as other capacitor/switchgear manufacturers.

3/ Shendian MOA has been exported to more than 30 counties all over the world.

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