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TGE Issued New Technical Parameters Of Metal Oxide Varistors (D45 & D48)

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    No.

    1

    2

    3

    4

    series

    AC MOV

    type

    D45H20

    D45H30

    D48H35.4

    D48H36

    suggested rated voltage (kV)

    3.2

    4.8

    5.5

    5.9

    MCOV (kV)

    2.7

    4.1

    4.7

    5.0

    diameter (mm)

    45±0.7

    45±0.7

    48±1

    48±1

    height (mm)

    20.0±0.3

    30.0±0.3

    35.4±0.3

    36±0.3

    DC U1mA (kV)

    4.6±0.3

    6.9±0.4

    7.8±0.5

    8.6±0.4

    IL at 75% of U1mA(µA)

    ≤15

    ≤15

    ≤20

    ≤20

    Ures (kV)

    8.0±0.4

    12.6±0.6

    13.45±0.8

    14.65±0.8

    typical Ures / U1mA

    1.73

    1.73

    1.71

    1.71

    repetitive charge transfer Qrs (C)

    1.2

    1.2

    1.6

    1.6

    guaranted 2ms test current (A)

    600

    600

    700

    700

    max 2ms test current (A)

    700

    700

    800

    800

    4/10µs high current test (kA)

    100

    100

    100

    100

    nominal discharge current In (kA)

    10

    10

    10

    10

    accelerated ageing test

    115℃              0.9*U1mA/√2          Kct ≤ 1.0


    References



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