Welcome to the world of D99 Series High Gradient MOV for GIS Arresters! These lightning arresters/surge arresters have been designed to provide optimum protection against lightning strikes and power surges. With their high-end components, they provide reliable and effective protection against lightning while providing a competitive price. The D99 Series is an ideal solution for those looking to protect their equipment, investments, and properties. Our MOV blocks offer superior performance, stability, and reliability, so you can rest assured that your equipment is safe and secure.
Type | D99H21.4HG |
Nominal discharge current In kA | 20 |
Suggested rated voltage kV | 5.3 |
Diameter mm | 99±1 |
Height mm | 21.4±0.3 |
AVG Gradient V/mm | 360 |
DC U1mA kV | 7.70±0.45 |
Iref mA | 5 |
Uref kV | 5.3 |
Ures kV | 11.60±0.72 |
8/20uS repetitive charge transfer Qrs C | |
2ms repetitive charge transfer Qrs C | 2.7 |
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.
The rated voltage, power frequency reference current and power frequency reference voltage are reference values.
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.
The charging rate of the aging test was 90%.
The number of pulses for the high current withstand value is two.
Are you looking for an effective and affordable way to protect your GIS Arresters from over-voltage surges? Look no further than the D99 Series High Gradient Metal Oxide Varistor (MOV) for GIS Arresters. This innovative product offers superior protection, while also being one of the most cost-effective solutions on the market. With its high-grade MOV block, this series has the capacity to absorb extreme levels of voltage and current, while also coming at an unbeatable metal oxide varistor price. Get the protection you need without breaking the bank with the D99 Series High Gradient MOV for GIS Arresters.
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