Wuhan HeZhong Electric Equipment Manufacture Co.,Ltd
Wuhan Hezhong Electric Equipment Manufacture Co., Ltd ELECTRICAL TECHNOLOGY SECURITY EXPERTS
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Zinc Oxide Varistor Lightning Surge Arrester Explosion Proof Large Creepage Distance
Application:
The zinc oxide arrester is mainly used to protect distribution transformer,cable connector and electrical equipment from being damaged by lightning impulse voltage and operating over-voltage.
Product Advantage:
1. Small size,Light weight,resistance to impact,no collision damage during transportation,flexible installation,suitable for use in the switch cabin.
2. Special structure,the overall compression molding,no air gap,good sealing performance,moisture-proof and explosion-proof
3. Large creepage distance,good hydrophobicity,strong stain resistance,stable performance and reduce operation maintenance.
4. Unique formula of zinc oxide varistor, small leakage current,slow aging,long service life.
5. With DC reference voltage,rectangular flow capacity and high current and large current withstand capacity are higher than standard requirement.
Technical parameters:
| Technical parameters for polymer surge arrester | |||||||||||
| Type | Rated Voltage KV(rms) | MCOV KV(rms) | Creepage lenth(mm) | Current impulse Residual Voltage | 2ms rectangular current impusle withstand KV(crest) | 4/10μs Hight current impulse withstand KV(crest) | Arrester size | ||||
| 1/5 μs steep current impulse KV(crest) | 8/20 μs Lighting current impulse KV(crest) | 30/60μs Switching current impulse KV(crest) | Arrester overroll length(mm) | Diameter of big sheds(mm) | Diameter of small sheds(mm) | ||||||
| YH5W-3 | 3 | 2.55 | 252 | 11.3 | 9 | 8.9 | 150 | 65 | 105.01 | 105 | 77 |
| YH5W-6 | 6 | 5.1 | 352 | 22.6 | 18 | 16.8 | 150 | 65 | 135.51 | 105 | 77 |
| YH5W-9 | 9 | 7.65 | 354 | 33.7 | 27 | 23.8 | 150 | 65 | 135.51 | 105 | 77 |
| YH5W-10 | 10 | 8.4 | 354 | 36 | 30 | 23 | 150 | 65 | 135.51 | 105 | 77 |
| YH5W-12 | 12 | 10.2 | 456 | 42.2 | 36 | 27 | 150 | 65 | 166 | 105 | 77 |
| YH5W-15 | 15 | 12.7 | 661 | 51 | 45 | 38.5 | 150 | 65 | 227 | 105 | 77 |
| YH5W-18 | 18 | 15.3 | 661 | 61.5 | 54 | 46.2 | 150 | 65 | 227 | 105 | 77 |
| YH5W-21 | 21 | 17 | 763 | 71.8 | 63 | 54.2 | 150 | 65 | 257 | 105 | 77 |
| YH5W-24 | 24 | 19.5 | 865 | 82 | 72 | 62 | 150 | 65 | 288 | 105 | 77 |
| YH5W-27 | 27 | 22 | 865 | 92 | 81 | 69.8 | 150 | 65 | 288 | 105 | 77 |
| YH5W-30 | 30 | 24.4 | 1000 | 102 | 90 | 79 | 150 | 65 | 333 | 105 | 77 |
| YH5W-33 | 33 | 27.5 | 1000 | 112 | 99 | 86.7 | 150 | 65 | 333 | 105 | 77 |
| YH5W-36 | 36 | 29 | 1211 | 123 | 108 | 92.4 | 150 | 65 | 397.5 | 105 | 77 |
| YH10W-3 | 3 | 2.55 | 252 | 11.3 | 9 | 8.9 | 250 | 100 | 105.01 | 105 | 77 |
| YH10W-6 | 6 | 5.1 | 352 | 22.6 | 18 | 16.8 | 250 | 100 | 135.51 | 105 | 77 |
| YH10W-9 | 9 | 7.65 | 354 | 33.7 | 27 | 23.8 | 250 | 100 | 135.51 | 105 | 77 |
| YH10W-10 | 10 | 8.4 | 354 | 36 | 30 | 23 | 250 | 100 | 135.51 | 105 | 77 |
| YH10W-12 | 12 | 10.2 | 456 | 42.2 | 36 | 27 | 250 | 100 | 166 | 105 | 77 |
| YH10W-15 | 15 | 12.7 | 661 | 51 | 45 | 38.5 | 250 | 100 | 227 | 105 | 77 |
| YH10W-18 | 18 | 15.3 | 661 | 61.5 | 54 | 46.2 | 250 | 100 | 227 | 105 | 77 |
| YH10W-21 | 21 | 17 | 763 | 71.8 | 63 | 54.2 | 250 | 100 | 257 | 105 | 77 |
| YH10W-24 | 24 | 19.5 | 865 | 82 | 72 | 62 | 250 | 100 | 288 | 105 | 77 |
| YH10W-27 | 27 | 22 | 865 | 92 | 81 | 69.8 | 250 | 100 | 288 | 105 | 77 |
| YH10W-30 | 30 | 24.4 | 1000 | 102 | 90 | 79 | 250 | 100 | 333 | 105 | 77 |
| YH10W-33 | 33 | 27.5 | 1000 | 112 | 99 | 86.7 | 250 | 100 | 333 | 105 | 77 |
| YH10W-36 | 36 | 29 | 1211 | 123 | 108 | 92.4 | 250 | 100 | 397.5 | 105 | 77 |