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



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




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