Metal Oxide Varistors For Distribution Arresters

10kV Arresters Diameters 28mm 30mm Zinc Oxide Varistors

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Product Details

10kV Arresters which use diameters 28mm or 30mm zinc oxide varistors.

type D28H23.5 D28H29 D30H23.5 D30H29
AC system AC AC AC AC
suggested rated voltage (kV) 3.6 4.5 3.6 4.5
MCOV (kV) 3.1 3.8 3.1 3.8
diameter (mm) 28±0.7 28±0.7 30±0.7 30±0.7
height (mm) 23.5±0.3 29±0.3 23.5±0.3 29±0.3
DC U1mA (kV) 5.52±0.3 6.82±0.35 5.52±0.3 6.82±0.35
IL at   75% of U1mA
    (µA)
≤ 10≤ 10≤ 10≤ 10
Ures   (kV) 9.7±0.5 12.0±0.6 9.5±0.5 11.7±0.6
typical Ures / U1mA 1.75 1.75 1.72 1.72
repetitive charge transfer Qrs (C)  0.3 0.3 0.3 0.3
guaranted 2ms test current (A) 150 150 150 150
max 2ms test current (A) 150 150 200 200
4/10µs high current test (kA) 65 65 65 65
nominal discharge current In (kA) 5 5 5 5
accelerated ageing test 115℃
 0.9*U1mA/√2
    Kct ≤ 1.0
115℃
 0.9*U1mA/√2
    Kct ≤ 1.0
115℃
0.9*U1mA/√2
    Kct ≤ 1.0
115℃
 0.9*U1mA/√2
    Kct ≤ 1.0


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