Welcome to the D105 Series High Gradient Metal Oxide Varistor (MOV) for Gas Insulated Switchgear (GIS) Arresters. This product is a revolutionary new MOV block that is designed to provide superior performance and maximum safety in GIS applications. As a type of zno blocks, this product features a unique working principle, which utilizes a combination of a strong magnetic field and a highly conductive material to achieve superior protection against lightning and other transient surges. The product also features high-grade insulation material that ensure minimal leakage and maximum protection against short circuits and other electrical faults. With its advanced design and superior performance, the D105 Series High Gradient MOV for GIS Arresters provides an effective solution for protecting GIS from the potentially destructive effects of lightning and other transient surges.
Type | D105H22.5 |
Nominal discharge current In kA | 20 |
Suggested rated voltage kV | 3.41 |
Diameter mm | 105±1.5 |
Height mm | 22.5±0.3 |
AVG Gradient V/mm | 210 |
DC U1mA kV | 4.73±0.30 |
Iref mA | 5 |
Uref kV | 3.41 |
Ures kV | 7.42±0.48 |
8/20uS repetitive charge transfer Qrs C | |
2ms repetitive charge transfer Qrs C | 4.5 |
2ms duration of rectangular impulse current A | 2500 |
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.
The D105 Series High Gradient MOV for GIS Arresters is the perfect solution for protecting your electrical system from thunder and other voltage surges. This metal oxide varistor function is to provide superior protection, with a high-grade MOV block that offers superior performance and reliability. The MOV block is designed to absorb the energy from a lightning strike, helping to protect your electrical system from damage and disruption. With this product, you can rest assured that your electrical system is always safe and secure.
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