Export functions high voltage 21kv polymer lightning surge arrester supplier

Product Detail

DetailPlace of Origin：Zhejiang, ChinaBrand Name：AISO/OEMModel Number：YH5W-21(EXPORT)Product Name：high voltage surge arrester 21kvSystem rater voltage：21kVDischarging current：5kAPackaging Details：By carton or plywood case.Port：Port 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. Usage & Feature The Zinc Oxide lighting arrester protects the electrical equipments in AC power systems against being damaged by atmos-pheric over-voltage and operational 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. Main Technical Parameters

Type

Rated

voltage

kV(rms)

Maximurn

continous

operation

voltage

kV(rms)

ResidualvoltagekV≥

2000μs

square

wave

current

impulse

withstand

A(crest)

4/10μs

highcurrent

impulse

kA(crest)

Steep current

impulse

kV(crest)

30/60μs

Switching

current

impulse

kV(crest)

8/20μs

Lightning

current

impulse

kV(crest)

YH5W-21

66.5

53.9

100

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Export functions high voltage 21kv polymer lightning surge arrester supplier

Product characteristic

Usual Service Condition

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