• Porcelain housed mental oxide surge arrester

Porcelain housed mental oxide surge arrester

This product is made of well voltage-ampere characteristic nonlinear metal oxide varistors, its protection performance is excellent. Please contact us! Email:

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Skype: liujingmec
liujing@mec.com.cn
 
 
This product has unique pressure release device, its arc channel is smooth and pressure release performance is excellent high performance double rubber sealing structure is adopted in the product, the constant compression of gasket is less than 15% which ensures good sealing performance.
 
This products has large current discharge capacity. 2ms rectangular current discharge capacity of metal oxide varistor (diameter 115mm)2500A, 4/10μs high current impulse withstand capacity is 100KA which passes line discharge class5.
The porcelain housing is one big shed and one small shed united open sheds. The shed pitch and shed out are reasonable, the specific creepage distance of surge arrester for Ⅲ degree pollution area is 28mm/KV, it improves pollution withstand capacity of products.
This product has unique pressure release device, its arc channel is smooth and pressure release performance is excellent high performance double rubber sealing structure is adopted in the product, the constant compression of gasket is less than 15% which ensures good sealing performance.
 
Main Technical Parameters
Type
KV rms
Rated voltage (KV rms)
KV rms
Continuous
Operating voltage
(kV rms)
≥KV
DC
Reference voltage≥KV
Residual voltage(≤KVP)
2 ms rectangular withstand
(A)
4/10μs
High current impulse withstand(KA)
30/60μs switching impulse
8/20μs lightning impulse
1/10μs steep impulse
YH20-828/1620W
828
638
1114
1460
1620
1782
8000
4X100
YH20-648/1491
648
498
875
1234
1491
1639
2500
100
YH20-600/1380
600
462
810
1142
1380
1518
2500
100
YH20-342//980
342
274
512
720
980
1097
1500
100
YH20-300/727
300