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Porcelain Housed Metal Oxide Surge Arresters

Product summary:
This product has large current discharge capacity .2ms rectangular current discharge capacity of metal oxide varistor(diameter 115mm) is 2500A,4/10μs high current impulse withstand capacity is 100ka which passes line discharge class 5.
This 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 arresters for Ⅲ degree pollution area is 28mm/kv,it improves pollution withstand capacity of product.

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Product name:
Porcelain housed metal oxide surge arresters
(Belongs to class surge arresters)
Product summary:
This product has large current discharge capacity .2ms rectangular current discharge capacity of metal oxide varistor(diameter 115mm) is 2500A,4/10μs high current impulse withstand capacity is 100ka which passes line discharge class 5.
This 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 arresters for Ⅲ degree pollution area is 28mm/kv,it improves pollution withstand capacity of product.
Product feature
This product is made of well voltage-ampere  characteristic nonlinear metal oxide varistors,its protection performance is excellent.
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 type technical parameter of porcelain housed metal oxide surge arresters.


type rated
voltage
(kvrms)
KVRMS
continuous
operating
voltage

≥KV DC.
reference
voltage

residual voltage≤kvp 2ms
rectangular
withstand
4/10μs
high current
impulse
withstand
30/60 μs
switching
impulse
8/20 μs
lighting
impulse
1/10 μs
steep
impulse
Y20W-828/1620 828 638 1114 1460 1620 1782 8000 100
Y20W-648/1491 648 498 875 1234 1491 1639 2500 100
Y20W-600/1380 600 462 810 1142 1380 1518 2500 100
Y20W-444/1106 444 355 597 907 1106 1238 2500 100
Y20W-420/1046 420 335 565 858 1046 1170 2500 100
Y20W-400/950 400 318 565 760 950 1054 2500 100
Y20W-300/727 300 228 425 618 727 814 1500 100
Y20W-198/485 198 154 289 414 485 538 1000 100
Y20W-192/480 192 150 280 410 480 532 1000 100
Y20W-150/375 150 117 218 320 375 416 1000 100
Y20W-144/374 144 115 205 312 374 411 1000 100
Y20W-120/295 120 96 170 252 295 328 1000 100
Y20W-108/281 108 84 157 239 281 315 800 100
Y20W-102/260 102 79.6 148 226 266 297 800 100
Y20W-96/250 96 75 140 213 250 288 600 100
Y20W-60/160 60 48 85 137 160 178 600 100
Y20W-54/134 54 43 76 114 134 154 400 100

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