#mov #type #surge #arrester <br>TGE developed D36 &amp; D42 series glass coating MOV which be suitable for distribution arresters according to IEC60099-4 (2014) in 2018. Based on the proven technique of high-performance metal oxide varistor, a special new type of metal oxide varistor can be used in heavy-duty distribution arresters has been successfully developed recently by TGE for the purpose of optimization of the electrical and economic performance of the new MOV with a diameter of 36mm &amp; 42mm, that signifies not only its electrical performance meets the requirements, but also it can be led to cost reduction of arrester by means of smaller arrester dimension. <br> <br>Types of MOV for Distribution Arrester <br>D30 Series MOV Block for Distribution Arrester <br>D32 Series MOV Block for Distribution Arrester <br>D33 Series MOV Block for Distribution Arrester <br>D36 Series MOV Block for Distribution Arrester <br>D45 Series MOV Block for Distribution Arrester <br>D48 Series MOV Block for Distribution Arrester <br> <br>MOV Block for Distribution Arrester Advantages <br>1 <br>Excellent performance in the high current test: TOV reached 1.25Ur and 1s was higher than the standard 1.2Ur and 0.1s. <br>2 <br>Higher protection level: TOV reached 1.25Ur and 1s was higher than the standard 1.2Ur and 0.1s. <br>3 <br>High performance in 8/20µs charge test: Ures change is within 3% and Ures change is within 1% after Qrs 0.4C charge test with 8/20µs waveshape for TGE D36. <br>4 <br>High performance in short circuit test: TGE wound core for customer passed 16kA short circuit test. <br>5 <br>Stable aging performance. <br>6 <br>High energy absorption capability. <br> <br>TGE MOV <br>How Does MOV Block for Distribution Arrester Work? <br>First of all, the stability of the electrical parameters of metal oxide varistor mov under continuous operating voltage. <br> <br>The artificial accelerated aging test proves that in the life cycle of the MOV, its power consumption shows a declining trend with time. This means that in the long-term operation of the MOV or arrester, the power consumption or heat generated by itself will not gradually increase, so the MOV or arrester is in a stable state. On the other hand, when the MOV or arrester is subjected to continuous operating voltage for a long time, the influence of the change in ambient temperature on the power consumption or resistive current of the MOV is also a factor that affects the operational stability of the MOV or zov varistor. Since the power consumption or resistive current of the MOV has a positive temperature coefficient, anyway, as the temperature increases, the power consumption or resistive current will show an increasing trend. But in spite of this, the improvement of manufacturing technology can make the change of power consumption or resistive current with temperature as small as possible, which is conducive to the safe operation of the arrester. The figure shows that the aging characteristics of the D36&amp;D42 series MOVs show that the power consumption increases monotonously as the application increases. The figure shows the change in power consumption of the MOV at different temperatures. Especially at a temperature of 190 ° C, the power consumption of the MOV sheet remains low. This is particularly important for the design of lightning arresters. When operating load or TOV test, the temperature rise of the MOV is very high due to the large energy absorbed by the MOV, and only when the high temperature power consumption remains low, it is specification of special metal oxide varistor for heavy duty distribution arrester easier to reach the heat under the recovery voltage or MCOV voltage stable. After the surge arrester in operation absorbs overvoltage energy, due to the lower high-temperature power consumption of the MOV, the heat generation of the surge arrester is lower, which is more conducive to the safe operation of the surge arrester Secondly, the stability of the electrical parameters of the MOV sheet after being subjected to different pulse currents. The most obvious characteristic of the mov blocks after undergoing a large pulse current and absorbing the corresponding energy is that the temperature rise and the reference voltage leakage current or power consumption and residual voltage after cooling have a certain amplitude change from the value before the pulse current. Contact metal oxide varistor manufacturer TGE for more product details. <br> <br> <br> <br>[a]https%3A%2F%2Fwww.xatge.com%2Fproducts%2Fmov-block-for-distribution-arrester%2F[/a]

#zno #blocks <br> <br>The mov blocks, otherwise referred to as zinc oxide varistors or energy blocks, serve as the core component of arresters. At TGE, we specialize in the production of AC, DC, and high gradient mov varistors, offering a wide range of products to cater to the technical requirements of 1-1100kV MOA and SPD. By 2023, our annual production capacity for mov varistors, including zinc oxide blocks, zno blocks, zinc oxide discs, and mov discs, will reach 3,000 tons. With stringent quality control measures, advanced technology, and highly automated production lines, TGE ensures the delivery of reliable, safe, and sustainable products. <br> <br>Types of MOV Blocks <br>MOV Block for Distribution Arrester <br>High 8/20μs lightning impulse protection level, High -current density, High current impulse withstand capability, good aging performance. <br> <br>MOV Block for Substation Arrester <br>Higher 2ms square wave repeatedly transferred charge tolerance, high stability of long -term operation, and excellent protection performance. <br> <br>High Gradient MOV Block for GIS Arresters <br>The 2ms square wave has a strong streaming capacity and high voltage gradient that can effectively reduce Arrest height and excellent U-I characteristics. <br> <br>MOV Block for DC Arresters <br>Good DC polar reversal aging test capabilities, MOV Can resist multiple harmonics in the DC system, Outstanding protection characteristics, and excellent protection characteristics. <br> <br>Varistors for Surge Protective Devices <br>In 2020, after two years of hard work, TGE R&amp;D team developed Surge Protective Devices (SPD) with its own MOV technology and manufacturing advantages, TGE SPD successfully passed the test from a third-party testing organization with superior performance. We hope to provide high-quality Surge Protective Devices for more users. <br> <br>MOV Blocks Video Display <br>As a reliable and experienced zinc oxide varistor manufacturer, it&#039;s our great honor to provide this video to give you a detailed insight into the functionality and significance of mov blocks, also known as zinc oxide blocks or mov varistors. Discover how these crucial components play a vital role in protecting electrical systems from surges and learn about the advanced production techniques used to manufacture high-quality mov blocks at TGE. <br> <br>MOV Blocks FAQs <br>How to replace metal oxide varistor? <br>With the continuous update of arrester technology, the quality and performance requirements of mov disc are getting higher and higher. When you want to make your arrester lighter and smaller, you need to consider replacing MOV (zinc oxide blocks or zno blocks) with small volume and high energy absorption. <br> <br>Notes about MOV selection guide <br>1. First, we need to know the type of arrester for the metal oxide varistor mov application. Station arrester or Distribution arrester? High voltage or Medium voltage? Line surge arrester or Railway surge arresters? <br>2. We need to confirm the nominal discharge current of the arrester is 5kA 10kA or 20kA. <br>3. We need to confirm the Qrs value and test waveform of the arrester? 2ms? 200-230μs? 2/20μs? <br>4. What is the rated voltage of the arrester? <br>5. What is the residual voltage of the arrester? <br> <br>Characteristics of MOV / Zinc Oxide Disc <br>1, Excellent performance in high current tests. <br> <br>2, High performance in 8/20µs charge test. <br> <br>3, Stable aging performance, high energy absorption capability. <br> <br>4, High energy absorption capability. <br> <br> <br> <br>[a]https%3A%2F%2Fwww.xatge.com%2Fproducts%2Fmov-blocks%2F[/a]

#zinc #oxide #disc <br>MOV stands for Metal Oxide Varistor. It is a type of surge arrester that is used to protect electrical systems and equipment from overvoltage transients. It consists of a metal oxide material that acts as a voltage-dependent resistor, which limits the voltage across the device. <br> <br>Types of MOV for Line Surge Arrester <br>D48 Series MOV Block for Line Surge Arrester <br>D60 Series MOV Block for Line Surge Arrester <br>D70 Series MOV Block for Line Surge Arrester <br>D78 Series MOV Block for Line Surge Arrester <br> <br>Design Considerations for MOV Block Line Surge Arresters <br>Voltage Rating: Ensure that the mov type surge arrester you choose has a voltage rating that is equal to or greater than the system voltage. <br> <br>Current Rating: Choose a surge arrester mov with a current rating that meets or exceeds the peak current that the system can generate. <br> <br>Response Time: Select an MOV line surge arrester with a response time that meets the requirements of the application. <br> <br>Operating Temperature Range: Ensure that the MOV line surge arrester you choose has an operating temperature range that meets the requirements of the application. <br> <br>Environmental Conditions: Consider the environmental conditions in which the MOV line surge arrester will be operating, including the possibility of exposure to moisture, dust, or other contaminants, and select an MOV line surge arrester accordingly. <br> <br>Installation: Consider the ease of installation when selecting an MOV line surge arrester. Select an arrester that requires minimal wiring, allows for easy mounting, and can be easily tested and maintained. <br> <br>TGE MOV <br>Testing and Maintenance of MOV Block Line Surge Arresters <br>Testing and maintenance of MOV line surge arresters is essential in order to ensure they remain effective in protecting against power surges. Testing of the MOV line surge arrester should be done periodically to check for proper operation. This includes visual inspections of the arrester and its components like zinc oxide blocks, as well as testing with a surge testing device. Maintenance of the metal oxide varistor mov should include regular cleaning of the arrester to remove dirt and debris, as well as replacing any components that are worn or damaged. Additionally, the MOV line surge arrester should be checked periodically to ensure it is properly grounded and that the wiring is secure. <br> <br> <br>[a]https%3A%2F%2Fwww.xatge.com%2Fproducts%2Fmov-for-line-surge-arrester%2F[/a]

#zov #varistor <br>Varistors, also known as voltage-dependent resistors, are used as part of surge protective devices (SPDs). Varistors are designed to provide protection against transient overvoltages by limiting the voltage across the device to a safe level. Varistors are usually composed of sintered material consisting of zinc oxide grains embedded in a ceramic matrix. When an overvoltage occurs, the surge varistor exhibits a low resistance, allowing a large current to flow, thereby reducing the voltage across the device. Varistors are available in both AC and DC versions, with a variety of ratings to suit different applications. <br> <br>Types of Varistors for Surge Protective Devices <br>Printing MOV Disk <br>Finished MOV Disk <br> <br>What to Consider When Selecting Varistors for Surge Protective Devices <br>Clamping Voltage: Select a spd varistor with a clamping voltage that is below the maximum voltage the mov spd is expected to encounter. <br> <br>Energy Absorption: Select a surge varistor with an energy absorption rating that meets or exceeds the level of protection required. <br> <br>Response Time: Choose a varistor for surge protection with a response time that is fast enough to protect against high surge currents. <br> <br>Size: Choose a varistor with a size that fits well with the SPD design and does not interfere with other components. <br> <br>TGE MOV <br>The Impact of Varistors on Surge Protection Performance <br>As a type of zinc oxide blocks, varistors are an important component in surge protection systems, as they help to absorb and divert excess electrical energy away from sensitive electronic devices and circuits. As for metal oxide varistor surge protection, a varistor is a semiconductor device that acts as a voltage-dependent resistor, meaning that its resistance changes with voltage, and can be used to protect against large voltage spikes, or transients. When a varistor is placed across the power supply line of a circuit, it acts as a &#039;clamp&#039;, limiting the voltage to a safe level and reducing the risk of a surge or spike damaging the circuit. The mov protection device uses are wide, these varistors can also be used in surge protection circuits to divert the excessive energy away from the protected device and prevent damage to it. <br> <br> <br> <br>[a]https%3A%2F%2Fwww.xatge.com%2Fproducts%2Fvaristors-for-surge-protective-devices%2F[/a]

[a]https%3A%2F%2Fwww.xatge.com%2Fproducts%2Fmov-for-line-surge-arrester%2F[/a] <br>#mov #selection #for #surge #protection <br>MOV stands for Metal Oxide Varistor. It is a type of surge arrester that is used to protect electrical systems and equipment from overvoltage transients. It consists of a metal oxide material that acts as a voltage-dependent resistor, which limits the voltage across the device. <br> <br>Design Considerations for MOV Block Line Surge Arresters <br> <br>1 <br>Voltage Rating: Ensure that the MOV arrester you choose has a voltage rating that is equal to or greater than the system voltage. <br>2 <br>Current Rating: Choose an mov surge arrester with a current rating that meets or exceeds the peak current that the system can generate. <br>3 <br>Response Time: Select an mov type surge arrester with a response time that meets the requirements of the application. <br>4 <br>Operating Temperature Range: Ensure that the MOV line surge arrester you choose has an operating temperature range that meets the requirements of the application. <br>5 <br>Environmental Conditions: Consider the environmental conditions in which the MOV line surge arrester will be operating, including the possibility of exposure to moisture, dust, or other contaminants, and select an MOV line surge arrester accordingly. <br>6 <br>Installation: Consider the ease of installation when selecting an MOV line surge arrester. Select an arrester that requires minimal wiring, allows for easy mounting, and can be easily tested and maintained. <br>TGE MOV <br>Testing and Maintenance of MOV Block Line Surge Arresters <br>Testing and maintenance of MOV line surge arresters is essential in order to ensure they remain effective in protecting against power surges. Testing of the MOV line surge arrester should be done periodically to check for proper operation. This includes visual inspections of the arrester and its components like zinc oxide blocks, as well as testing with a surge testing device. Maintenance of the metal oxide varistor mov should include regular cleaning of the arrester to remove dirt and debris, as well as replacing any components that are worn or damaged. Additionally, the MOV line surge arrester should be checked periodically to ensure it is properly grounded and that the wiring is secure. <br> <br>For more information about mov selection for surge protection, please feel free to contact us! <br> <br>If you are looking for a reliable metal oxide varistor manufacturer, don&#039;t hesitate to contact us!

[a]https%3A%2F%2Fwww.xatge.com%2Fproducts%2Fmov-blocks%2F[/a] <br>#zinc #oxide #disc <br>The mov blocks, otherwise referred to as zinc oxide varistors or energy blocks, serve as the core component of arresters. At TGE, we specialize in the production of AC, DC, and high gradient mov varistors, offering a wide range of products to cater to the technical requirements of 1-1100kV MOA and SPD. By 2023, our annual production capacity for mov varistors, including zinc oxide blocks, zno blocks, zinc oxide disc, and mov disc, will reach 3,000 tons. With stringent quality control measures, advanced technology, and highly automated production lines, TGE ensures the delivery of reliable, safe, and sustainable products. <br>MOV Blocks Video Display <br>As a reliable and experienced zinc oxide varistor manufacturer, it&#039;s our great honor to provide this video to give you a detailed insight into the functionality and significance of mov blocks, also known as zinc oxide blocks or mov varistors. Discover how these crucial components play a vital role in protecting electrical systems from surges and learn about the advanced production techniques used to manufacture high-quality mov blocks at TGE. <br> <br>If you are looking for a reliable metal oxide varistor manufacturer, don&#039;t hesitate to contact us!

[a]https%3A%2F%2Fwww.xatge.com%2Fproducts%2Fmov-block-for-distribution-arrester%2F[/a] <br>#zov #varistor <br>TGE developed D36 &amp; D42 series glass coating MOV which be suitable for distribution arresters according to IEC60099-4 (2014) in 2018. Based on the proven technique of high-performance metal oxide varistor, a special new type of metal oxide varistor can be used in heavy-duty distribution arresters has been successfully developed recently by TGE for the purpose of optimization of the electrical and economic performance of the new MOV with a diameter of 36mm &amp; 42mm, that signifies not only its electrical performance meets the requirements, but also it can be led to cost reduction of arrester by means of smaller arrester dimension. <br> <br>MOV Block for Distribution Arrester Advantages <br> <br>1 <br>Excellent performance in the high current test: TOV reached 1.25Ur and 1s was higher than the standard 1.2Ur and 0.1s. <br>2 <br>Higher protection level: TOV reached 1.25Ur and 1s was higher than the standard 1.2Ur and 0.1s. <br>3 <br>High performance in 8/20µs charge test: Ures change is within 3% and Ures change is within 1% after Qrs 0.4C charge test with 8/20µs waveshape for TGE D36. <br>4 <br>High performance in short circuit test: TGE wound core for customer passed 16kA short circuit test. <br>5 <br>Stable aging performance. <br>6 <br>High energy absorption capability. <br> <br>How Does MOV Block for Distribution Arrester Work? <br>First of all, the stability of the electrical parameters of metal oxide varistor mov under continuous operating voltage. <br>The artificial accelerated aging test proves that in the life cycle of the MOV, its power consumption shows a declining trend with time. This means that in the long-term operation of the MOV or arrester, the power consumption or heat generated by itself will not gradually increase, so the zov mov or arrester is in a stable state. On the other hand, when the MOV or arrester is subjected to continuous operating voltage for a long time, the influence of the change in ambient temperature on the power consumption or resistive current of the MOV is also a factor that affects the operational stability of the MOV or arrester. Since the power consumption or resistive current of the MOV has a positive temperature coefficient, anyway, as the temperature increases, the power consumption or resistive current will show an increasing trend. But in spite of this, the improvement of manufacturing technology can make the change of power consumption or resistive current with temperature as small as possible, which is conducive to the safe operation of the arrester. The figure shows that the aging characteristics of the D36&amp; D42 series MOVs show that the power consumption increases monotonously as the application increases. The figure shows the change in power consumption of the MOV at different temperatures. Especially at a temperature of 190 ° C, the power consumption of the MOV sheet remains low. This is particularly important for the design of lightning arresters. When operating load or TOV test, the temperature rise of the MOV is very high due to the large energy absorbed by the MOV, and only when the high temperature power consumption remains low, it is <br>Specification of special metal oxide varistor for heavy duty distribution arrester easier to reach the heat under the recovery voltage or MCOV voltage stable. After the surge arrester in operation absorbs overvoltage energy, due to the lower high-temperature power consumption of the MOV, the heat generation of the surge arrester is lower, which is more conducive to the safe operation of the surge arrester <br>Secondly, the stability of the electrical parameters of the MOV sheet after being subjected to different pulse currents. The most obvious characteristic of the mov blocks after undergoing a large pulse current and absorbing the corresponding energy is that the temperature rise and the reference voltage leakage current or power consumption and residual voltage after cooling have a certain amplitude change from the value before the pulse current. Contact metal oxide varistor manufacturer TGE for more product details. <br> <br>For more information about zov varistor, please feel free to contact us!

[a]https%3A%2F%2Fwww.xatge.com%2Fproducts%2Fd99-series-mov-block-for-substation-arrester%2F[/a] <br>#disk #varistor <br>The D99 Series MOV for Substation Arrester is a state-of-the-art lightning arrester designed to protect substations from lightning and overvoltage surges. It is made up of a metal oxide varistor block that provides superior protection and stability against heavy load surges up to 750-1000kV. It is equipped with advanced features that ensure it is reliable and efficient in operation, even under the most challenging conditions. This lightning arrester has been designed to offer the highest level of protection and reliability to substations while being cost-effective and user-friendly. With its superior performance and safety features, the D99 Series MOV for Substation Arrester is the perfect choice for substation protection. <br> <br>Properties of D99 Series MOV for disk varistor <br> <br>The metal oxide varistor manufacturer TGE&#039;s D99 Series MOV for Substation Arrester is a high-performance MOV block designed for use in 750-1000kV heavy load surge arresters. These blocks provide reliable protection against transient over-voltage and offers superior mechanical and electrical properties, making them ideal for a wide range of applications. They are highly resistant to high-frequency transients and shocks, as well as environmental influences such as humidity and corrosion. The mov blocks offer excellent high-voltage performance and long service life.

[a]https%3A%2F%2Fwww.xatge.com%2Fproducts%2Fd85-series-high-gradient-mov-block-for-gis-arresters%2F[/a] <br>#mov #varistor #selection <br>The D85 Series High Gradient MOV for GIS Arresters is a must-have for any 330kV GIS surge arrester system. This MOV varistor provides ultra-high gradient performance and is designed to effectively protect against high voltage surges in the GIS environment. The series offers a variety of shapes and sizes, including blocks, cubes and rods, to meet the needs of any GIS system. The varistor has very low leakage current and a high current-carrying capacity, ensuring that it withstands the highest levels of electrical pressure. With its durable and reliable construction, the series helps protect against power outages and other hazards. Additionally, it is designed to reduce energy waste and extend the life of the GIS arrester. The D85 Series is the perfect choice for anyone looking for high-performance MOV varistors for their GIS system. <br> <br>Features of D85 Series High Gradient MOV for GIS Arresters <br> <br>The D85 Series High Gradient MOV for GIS Arresters is a must-have for any lightning or surge arrester. With a MOV block designed to withstand up to 330kV, this product offers superior protection against electrical surges. It is easy to install and its compact size makes it perfect for use in even the smallest of spaces. With its superior performance, this product can provide reliable protection from electrical surges and lightning strikes. This product is perfect for any application requiring a lightning or surge arrester. As a reputable zinc oxide varistor manufacturer, we ensure that our D85 Series High Gradient MOV for GIS Arresters are built with top-notch materials for maximum efficiency. Our metal oxide varistor MOV and ZnO blocks are designed to provide unparalleled protection against electrical surges, making them an ideal choice for various applications. <br> <br>For more information about mov varistor selection, please feel free to contact us! <br> <br>If you are looking for a reliable metal oxide varistor manufacturer, don&#039;t hesitate to contact us!

[a]https%3A%2F%2Fwww.xatge.com%2Fproducts%2Fd78h35.4-mov-block-for-dc-arresters%2F[/a] <br>#metal #oxide #varistor #manufacturer <br>D78H35.4DC MOV for DC Arresters is a lightning protection device designed to protect your home, business, and other structures from the potentially devastating consequences of thunder and lightning. This MOV block is a highly reliable and effective metal oxide arrester (MOV) that provides superior protection against lightning strikes and surges. This MOV block is designed to be used with DC Arresters and is suitable for many high-voltage applications. It is capable of withstanding multiple lightning strikes and surges, making it an ideal choice for your lightning protection needs. With its high-quality components, the MOV is designed to provide reliable protection against lightning and other power surges. Invest in the D78H35.4DC MOV for DC Arresters and ensure that your property is safe from the harmful effects of lightning and other power surges. <br>Note: <br> <br>The nouns, parameters and corresponding test methods in this parameter list conform to the standards of IEC60099-4:2014 and GB11032-2020. <br> <br>The rated voltage, power frequency reference current and power frequency reference voltage are reference values. <br> <br>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. <br> <br>The charging rate of the aging test was 90%. <br> <br>The number of pulses for the high current withstand value is two. <br> <br>Features of D78H35.4 MOV for DC Arresters <br> <br>The D78H35.4DC MOV for DC Arresters is a high-quality product designed to protect electrical installations from lightning and other overvoltage surges. The product is composed of a metal oxide varistor (MOV) connected in series with a spark gap, which acts as an arrester for both lightning and DC overvoltage. This product is designed for use in electrical installations, providing reliable protection and excellent performance. It is a great choice for ensuring safety and reliability in a variety of applications. As a leading zinc oxide varistor manufacturer, we ensure that our D78H35.4DC MOV for DC Arresters are made with the highest quality materials for optimal performance. Our metal oxide varistor (MOV) and ZnO blocks are meticulously crafted to provide superior protection against overvoltage, making them a trusted choice for various electrical applications. <br> <br>For more information about metal oxide varistor selection guide and metal oxide varistor selection, please feel free to contact us! <br> <br>If you are looking for a reliable metal oxide varistor manufacturer, don&#039;t hesitate to contact us!

[a]https%3A%2F%2Fwww.xatge.com%2Fproducts%2Fd70-series-mov-block-for-line-surge-arrester%2F[/a] <br>#metal #oxide #varistor #manufacturer <br>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. <br> <br>TGE Specification of D70H9.4 Metal Oxide Arrester Blocks <br>Type D70H9.4 <br>Nominal discharge current In kA 10 <br>Suggested rated voltage kV 1.4 <br>Diameter mm 70±1 <br>Height mm 9.4±0.3 <br>AVG Gradient V/mm 220 <br>DC U1mA kV 2.07±0.30 <br>Iref mA 5 <br>Uref kV 1.46 <br>Ures kV 3.41±0.50 <br>8/20uS repetitive charge transfer Qrs C <br>2ms repetitive charge transfer Qrs C 3 <br>2ms duration of rectangular impulse current A 1500 <br>4/10µs high current test kA 100 <br>Accelerated ageing test Kct ≤ 1.0 <br> <br>Note: <br>The nouns, parameters and corresponding test methods in this parameter list conform to the standards of IEC60099-4:2014 and GB11032-2020. <br> <br>The rated voltage, power frequency reference current and power frequency reference voltage are reference values. <br> <br>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. <br> <br>The charging rate of the aging test was 90%. <br> <br>The number of pulses for the high current withstand value is two. <br> <br>Advantages of D70 Series MOV for Line Surge Arrester <br> <br>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. <br> <br>For more information about metal oxide varistor working principle and how metal oxide varistor works, please feel free to contact us! <br> <br>If you are looking for a reliable metal oxide varistor manufacturer, don&#039;t hesitate to contact us!