Refractory Material Grade White Fused Alumina/Aluminum Oxide

Refractory Material Grade White Fused Alumina/Aluminum Oxide

10kV Arresters diameters 28mm 30mm zinc oxide varistors,repetitive charge transfer Qrs (C) is 0.3C,guaranted 2ms test current (A) is 150A,4/10µs high current test (kA)is 65kA. suggested rated voltage (kV)is 3.6kV or 4.5kV

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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


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


We are committed to providing more competitive Refractory Material Grade White Fused Alumina/Aluminum Oxide and supporting services that even more exceed customer expectations. Depending on this, our solutions are sold very well in many countries. We believe quality comes from detail.
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