Combined polymer metal-oxide surge arrester has been widely used for interphase protection and phase protection in the industry of petrochemical, railway and coal industry, etc.

Work Condition:

1/ Indoor;

2/ -40℃+40℃;

3/ Altitude up to 2600m;

4/ Power supply frequency range from 48Hz to 62Hz;

5/ Anti-seismic: 0.25g;

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	Offered
1	Manufacture/ Country of Origin		Xi'an Shendian/ China	Xi'an Shendian/ China
2	Model		YH5WZ1-30/80×30/80	YH5WZ1-34/89×34/89
3	Applicable standard		IEC 60099-4	IEC 60099-4
4	Type		Outdoor, ZnO, gapless	Outdoor, ZnO, gapless
5	Norminal voltage of system	kV	20	20
6	Earthing system		Effectively earthed	Effectively earthed
7	Rated frequency	Hz	50/60	50/60
8	Rated voltage of SA	kV	30	34
9	Maximum continuous operating voltage	kV	24	27.2
10	Connection mode		Phase-Phase/ Phase-Earth	Phase-Phase/ Phase-Earth
11	Power frequency reference voltage	kV	45.0/43.0	50.0/48.0
12	at reference current of	mA (D.C)	1	1
12	Note: State peak value or rms.	mA (D.C)	1	1
13	Nominal discharge current	kA	5	5
14	(a) Lightning impulse	kV	≤80/80	≤89/89
	(b) Steeping impulse	kV	≤92/92	≤102/102
	(c) Switching impulse	kV	≤68/68	≤75.6/75.6

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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