D70 Series MOV Block for Line Surge Arrester

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D70 Series MOV Surge Arrester is a reliable surge protection device designed to protect electrical and electronic equipment from high voltage surges. It has a compact design and is made of high-quality material which ensures that it is reliable and durable. The mov surge protection device is designed to provide maximum protection in harsh environments, such as coastal areas and high-voltage networks. It is a cost-effective solution that can be easily installed and maintained. It is an ideal solution for protecting your electrical and electronic equipment from the effects of high-voltage surges.

TGE Specification of D70H9.4 Metal Oxide Arrester Blocks
Type D70H9.4
Nominal discharge current In kA 10
Suggested rated voltage kV 1.4
Diameter mm 70±1
Height mm 9.4±0.3
AVG Gradient V/mm 220
DC U1mA kV 2.07±0.30
Iref mA 5
Uref kV 1.46
Ures kV 3.41±0.50
8/20uS repetitive charge transfer Qrs C
2ms repetitive charge transfer Qrs C 3
2ms duration of rectangular impulse current A 1500
4/10µs high current test kA 100
Accelerated ageing test Kct ≤ 1.0

Note:
The nouns, parameters and corresponding test methods in this parameter list conform to the standards of IEC60099-4:2014 and GB11032-2020.
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The rated voltage, power frequency reference current and power frequency reference voltage are reference values.
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The 2ms square wave tolerance value is based on the declared current/2ms repetitive charge transfer charge Qrs=423, if the actual test waveform 2ms current/2mS repetitive charge transfer charge Qrs is not equal to 423, it should be corrected according to the actual 2ms current waveform and Qrs value.
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The charging rate of the aging test was 90%.
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The number of pulses for the high current withstand value is two.
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Advantages of D70 Series MOV for Line Surge Arrester

The D70 Series MOV for Line Surge Arrester provides excellent protection from line surges and other transient over-voltages. It is designed for 500kV line surge arresters for superior performance, reliability, and longevity. It features low power loss, high energy absorption capacity, fast response time, and long service life. It is also cost-effective and provides superior protection against line surges and over-voltage events. As a premier zinc oxide varistor manufacturer, we ensure our D70 series MOV block for line surge arrester incorporates the metal oxide varistor mov function, providing optimal protection and performance. Our zno blocks are designed to offer superior surge protection, making them a cost-effective solution for safeguarding your electrical systems against line surges and over-voltage events.

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