D50 Series MOV for Substation Arrester is a high-end product designed to protect 110-220kV heavy load surge arrester. It is made up of top-grade MOV varistor blocks of excellent performance, which can effectively absorb the transient current and effectively protect the arrester from overvoltage. It has the advantages of high current resistance, fast response, high reliability, and long service life. It is an ideal choice for protecting substation arrester from overvoltage hazards.
Type | D50H23.5 |
Nominal discharge current In kA | 10 |
Suggested rated voltage kV | 3.55 |
Diameter mm | 50±1 |
Height mm | 23.5±0.3 |
AVG Gradient V/mm | 220 |
DC U1mA kV | 5.17±0.30 |
Iref mA | 3 |
Uref kV | 3.62 |
Ures kV | 8.84±0.52 |
8/20uS repetitive charge transfer Qrs C | |
2ms repetitive charge transfer Qrs C | 1.5 |
2ms duration of rectangular impulse current A | 800 |
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.
Type | D50H24 |
Nominal discharge current In kA | 10 |
Suggested rated voltage kV | 4.09 |
Diameter mm | 50±1 |
Height mm | 24±0.3 |
AVG Gradient V/mm | 245 |
DC U1mA kV | 5.93±0.30 |
Iref mA | 3 |
Uref kV | 4.15 |
Ures kV | 10.14±0.52 |
8/20uS repetitive charge transfer Qrs C | |
2ms repetitive charge transfer Qrs C | 1.5 |
2ms duration of rectangular impulse current A | 800 |
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.
Type | D50H29 |
Nominal discharge current In kA | 10 |
Suggested rated voltage kV | 4.49 |
Diameter mm | 50±1 |
Height mm | 29±0.3 |
AVG Gradient V/mm | 220 |
DC U1mA kV | 6.41±0.30 |
Iref mA | 3 |
Uref kV | 4.57 |
Ures kV | 10.96±0.61 |
8/20uS repetitive charge transfer Qrs C | |
2ms repetitive charge transfer Qrs C | 1.5 |
2ms duration of rectangular impulse current A | 800 |
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.
Type | D50H36 |
Nominal discharge current In kA | 10 |
Suggested rated voltage kV | 5.84 |
Diameter mm | 50±1 |
Height mm | 36±0.3 |
AVG Gradient V/mm | 220 |
DC U1mA kV | 7.88±0.35 |
Iref mA | 3 |
Uref kV | 5.92 |
Ures kV | 13.47±0.70 |
8/20uS repetitive charge transfer Qrs C | |
2ms repetitive charge transfer Qrs C | 1.5 |
2ms duration of rectangular impulse current A | 800 |
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.
Type | D50H41 |
Nominal discharge current In kA | 10 |
Suggested rated voltage kV | 6.65 |
Diameter mm | 50±1 |
Height mm | 41±0.3 |
AVG Gradient V/mm | 230 |
DC U1mA kV | 9.40±0.45 |
Iref mA | 3 |
Uref kV | 6.75 |
Ures kV | 16.07±0.78 |
8/20uS repetitive charge transfer Qrs C | |
2ms repetitive charge transfer Qrs C | 1.5 |
2ms duration of rectangular impulse current A | 800 |
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 D50 Series MOV for Substation Arrester is a reliable and cost-effective solution for heavy load surge protection in electrical substations. Featuring a durable MOV varistor block design, the D50 Series provides superior protection against extreme conditions and lightning-induced surges, helping to extend the lifespan of critical equipment and reduce downtime. As a trusted metal oxide varistor manufacturer, we ensure that our D50 series MOV block for substation arrester incorporates the zinc oxide varistor function, providing robust protection against surges. Our mov disc is designed to withstand extreme conditions, offering superior surge protection for your critical substation equipment.
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