Place of Origin:Place of OriginBrand Name: AISO/OEMModel Number: YH5WZ-(3.8-116)Product Name:lightning arrester substationSystem rater voltage:3kV-110kVDischarging current:5kAApplication: Substation/Power plantStandard: IEC StandardColor:Red or grayWarranty:24 MonthsQuality:100%BrandPackaging:Foam+CartonPort: Ningbo/Shanghai
The zinc oxide arrester is the most advanced over-voltage protector in the world,Due to make the risistor disc of core componet mainly adopt zine oxide arrester.Compared with the conventional silicon carbide arrester, this presciption of the product improves gr-eatly the volt-Ampere characterisics of the resistor disc and increased through-current capability at over-voltage so as to dring a rad-ical changes for the characteristics of the arresters. Under the circumstance of normal operating voltage, the current through the arrester is just on microampere degree, When suff-ered from over-voltage,the arrester’s excellent nonlinear characteristics will make the current through the arrester incrase to several thousand amperse,while the arrester will be under the circulating state and release over-voltage energy so as to protecting the power transmission equipments against the demage caused by th over-voltage.
Product characteristic
1.Small size,Light weight,resistance to impact,no collision damage during transportation,flexible installation,suitable for use inthe switch cabin.2.Special structure,the overall compression molding,no air gap,good sealing performance,moisture-proofand explosion-proof3.Large creepage distance,good hydrophobicity,strong stain resistance,stable performance and reduceoperation 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.
Usual Service Condition
Power frequency:48Hz ~60HzAmbient temperature:-40°C~+40°CMaximum wind speed: not exceed 35m/sAltitude: not exceed 2000mEarthquake intensity: not exceed 8 degreesIce thickness: not exceed 10 meters.Long-term applying voltage does not exceed the maximum coutinuous operating voltage.
Type Specifications
Main Technical Parameters
Service condition |
System nominal voltage kV |
Continous operation voltage kV |
DCMin U1mA reference voltage kV≥ |
ResidualvoltagekV≥ |
Square wave current impulse withstand A |
High current impulse kA |
||
1/4μs Steep current impulse |
8/20μs Lightning current impulse |
30/60μs Switching current impulse |
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5kA Substation (Z) |
3 | 3.2 | 7.2 | 14.5 | 13.5 | 11.5 | 200 | 65 |
6 | 4 | 14.4 | 31 | 27 | 23 | |||
6 | 8 | 14.4 | 31 | 27 | 23 | |||
10 | 13.6 | 24 | 51.8 | 45 | 38.3 | |||
35 | 23.4 | 73 | 154 | 134 | 114 | 400 | 100 | |
40.8 | 73 | 154 | 134 | 114 | ||||
42.2 | 73 | 154 | 134 | 114 | ||||
43.2 | 73 | 154 | 134 | 114 | ||||
66 | 67.2 | 121 | 254 | 221 | 188 | 600 | 100 | |
72.5 | 130 | 258 | 224 | 190 | ||||
75.5 | 134 | 270 | 234 | 198 | ||||
110 | 75 | 140 | 287 | 250 | 212 | 600 | 100 | |
78 | 145 | 299 | 260 | 221 | ||||
80 | 148 | 305 | 266 | 226 | ||||
84 | 157 | 323 | 281 | 239 | ||||
88.2 | 168 | 347 | 302 | 256 |