The Zinc Oxide arrester is the most advanced over-voltage pr otector in the world. This is due to the incorporation of a zinc oxide arrester as the core resistor disc.
This allows an improvement in the volt-ampere characteris stics of the resistor disc and an increase in through-current capability in over-voltage sistuations, which is a drastic improvement when compared to conventional silicon carbide arresters. Under normal operating voltage, the currentthrough the arrester is only one micro-ampere degree. When the arrester experiences an o ver-voltage situation, the excellent non linear characteristics will increase the currentthrough the arrester several thousand times. The arrester is in the conductin ng state and will release the over-voltage energy to earth and thereby prote cting power transmission
equipment against the effects of over-voltage.
Surge Arrestor
1.Has the advantages of small volume,light weight, resistance to impact,transport without damage ,flexible installation,suitable for use in the switch cabinet.
2.Special structure,integrally molded, no gas gap,good sealing performance,moisture-proof, explosion-proof;
3. Big creepage distance,good hydrophobicity,strain resistant capability,stable performance,reduce operation and maintenance;
4.Unique formula of zinc oxide varistor, the leakage current is small,the aging speed, long service life.
5.With the DC reference voltage square wave,flow capacity and large current withstand capability are higher than the national standard.
1.Power frequency:48Hz~62Hz
2.Ambient temperature:-40 degree to + 40 degrees C
3.The maximum wind speed of no more than 35m/s
4.Altitude not exceeding 2000m
5.No more than 8 degree earthquake intensity
6.Ice thickness is less than 10mm
7.Long applied voltage does not exceed the maximum continuous operating voltage of the rays of the sun:
solar maximum irradation(1.1kw/mm²)impact has been in the product type test to be considered,if the arrester has in the vicinity of other sources, lighting arrester used for both sides.
Model | Rated voltage KV(r.m.s) | MCOV KV(r.m.s) | DC 1mA reference voltage (kV) ≥ | Creepage distance (mm) |
YH5W-3 | 3 | 2.55 | 4.5 | 280 |
YH5W-9 | 9 | 7.65 | 13.5 | 300 |
YH5W-11 | 11 | 10.2 | 16.5 | 350 |
YH5W-21 | 21 | 17 | 31.5 | 650 |
YH5W-24 | 24 | 19.5 | 36 | 650 |
YH5W-33 | 33 | 27.5 | 49.5 | 780 |
YH5W-36 | 36 | 29 | 54 | 910 |
YH10W-3 | 3 | 2.55 | 4.5 | 280 |
YH10W-9 | 9 | 7.65 | 13.5 | 300 |
YH10W-11 | 11 | 10.2 | 16.5 | 350 |
YH10W-21 | 21 | 17 | 31.5 | 650 |
YH10W-24 | 24 | 19.5 | 36 | 650 |
YH10W-33 | 33 | 27.5 | 49.5 | 780 |
YH10W-36 | 36 | 29 | 54 | 910 |
Company Profile
POWTECH is a high-tech enterprise who specialzes in manfuacturing electric transmission, distribution and telecom line materials like: ABC clamp, piercing insulation connector, insulators, surge arresters, dropout fuse, isolation switch, preformed guy grips, stainless steel banding, FTTH fittings, PLC splitter, patch cord, cross arm, stay wire and all transmission line fittings. Since our establishment in 1994, we dedicated ourselves to serve our partner with one-stop service, professional service, quality product, factory acceptance test, installation training, onsite guide and many value-added services.?
After more than 20years' development, we are certified by ISO9001, ISO14001, SGS, FCC, CE, RoHS and by customer-appointed lab test suthorities etc.
With the belief, there's no small or big customer, every customer deserve good srevice. We are willing to support all of our customers grow and prosper.
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