금속 산화물 배리스터
In the pivotal domain of electrical safeguarding, our Metal Oxide Varistors 그리고 Metal oxide resistors emerge as the pinnacle of innovative technology, solidifying their position as the quintessential core components in lightning arresters . Championing the adoption of the most recent raw material formulas and avant-garde production processes, we ensure our metal oxide resistors not only meet but exceed standards, achieving unparalleled levels both on international and domestic stages . Dive into a world where supreme current capacity , exceptional aging resistance , stellar protection characteristics , impeccable uniformity , and the triumphant development and production of high gradient resistor sheets , converge to deliver a product that stands unchallenged in both domestic and international markets . Welcome to a realm where quality and innovation collide!
설명
Explore Advanced Metal Oxide Varistors: Leading Lightning Protection with Metal Oxide Resistors
Introduction:
In the realm of electrical protection, Metal Oxide Varistors, 그리고 Metal oxide resistors stand at the forefront of technology, becoming the core components of lightning arresters . Our company not only adopts the latest raw material formulas and production processes but also ensures that the metal oxide resistors produced reach both international and domestic leading levels in various aspects .
Large Current Capacity
Our Metal oxide resistors showcase a remarkably large current capacity. The 4/10μs large current impulse withstand capability, 2ms square wave current capacity, and line discharge level have reached an internationally advanced level .
Excellent Aging Resistance
After undergoing an aging test at 115℃ and 1000h at the corresponding charge rate, the aging coefficient of resistor sheets of various specifications is less than 0.9, and the aging characteristics have reached an international leading level .
Superior Protection Characteristics
The residual voltage ratio of resistor sheets of various specifications under corresponding standard current impact showcases the superior protection characteristics of Metal Oxide Varistors, reaching a domestic leading level .
Good Uniformity
The uniformity indicators of the DC 1mA reference voltage, residual voltage ratio, and other parameters of resistor sheets of various specifications have reached a domestic leading level .
Successful Development of High Gradient Resistor Sheets
The high gradient resistor sheet, successfully developed by our company, has been put into mass production. The potential gradient of the high-gradient resistor sheet can reach 300-400V/mm .
Conclusion:
By adopting the latest raw material formulas and production processes, our company’s 금속 산화물 배리스터 series products excel across multiple series, including AC resistors, DC resistors, and high gradient resistors . Compared with other domestic products, it has five major characteristics, holding a place not only in the domestic market but also demonstrating strong competitiveness in the international market .
Technical parameters of AC metal oxide resistors
| Type | Dimension（mm) | DC 1mA reference voltage（kV) | （µA) Leakage current under 0.75U1mA | 8/20μs nominal lightning impulse current（kA） | The ratio of residual voltage at a lightning impulse | Discharge current capacity | |||
| Outside diameter | Inside diameter | Height | 4/10μs high current impulse withstand(kA) | 2ms rectangular impulse current withstand(A) | |||||
| Φ32×25 | 32±0.5 | 25±0.5 | 5.0-5.7 | ≤10 | 5 | 1.79 | 40 | 150 | |
| Φ32×30 | 32±0.5 | 30±0.5 | 6.0-6.9 | ≤10 | 5 | 1.79 | 40 | 150 | |
| Φ35×25 | 35±0.5 | 25±0.5 | 5.0-5.7 | ≤10 | 5 | 1.7 | 65 | 250 | |
| Φ35×30 | 35±0.5 | 30±0.5 | 6.3-6.9 | ≤10 | 5 | 1.7 | 65 | 250 | |
| Φ42×25 | 42±0.5 | 25±0.5 | 5.0-5.7 | ≤15 | 5 | 1.7 | 100 | 400 | |
| Φ42×30 | 42±0.5 | 30±0.5 | 6.3-6.9 | ≤15 | 5 | 1.7 | 100 | 400 | |
| Φ45×25 | 45±0.5 | 25±0.5 | 5.0-5.7 | ≤20 | 5 | 1.68 | 100 | 500 | |
| Φ45×30 | 45±0.5 | 30±0.5 | 6.3-6.9 | ≤20 | 5 | 1.68 | 100 | 500 | |
| Φ52×25 | 52±0.5 | 25±0.5 | 5.0-5.7 | ≤20 | 10 | 1.73 | 100 | 600 | |
| Φ52×30 | 52±0.5 | 30±0.5 | 6.3-6.9 | ≤20 | 10 | 1.73 | 100 | 600 | |
| Φ60×22 | 60±0.5 | 22±0.5 | 4.4-5.1 | ≤20 | 10 | 1.71 | 100 | 800 | |
| Φ60×30 | 60±0.5 | 30±0.5 | 6.3-6.9 | ≤20 | 10 | 1.71 | 100 | 800 | |
| Φ71×22 | 71±0.5 | 22±0.5 | 4.4-5.1 | ≤20 | 10 | 1.67 | 100 | 1200 | |
| Φ71×22 | 71±0.5 | 26±0.5 | 22±0.5 | 4.4-5.1 | ≤20 | 10 | 1.72 | 100 | 1000 |
| Φ75×22 | 75±0.5 | 22±0.5 | 4.4-5.1 | ≤20 | 10 | 1.65 | 100 | 1400 | |
| Φ85×22 | 85±0.5 | 22±0.5 | 4.4-5.1 | ≤20 | 10 | 1.63 | 100 | 1800 | |
| Φ85×22 | 85±0.5 | 26±0.5 | 22±0.5 | 4.4-5.1 | ≤20 | 10 | 1.65 | 100 | 1500 |
| Φ115×22 | 115±0.5 | 42±0.5 | 22±0.5 | 4.4-5.1 | ≤30 | 20 | 1.66 | 100 | 2200 |
| Φ128×22 | 128±0.5 | 42±0.5 | 22±0.5 | 4.4-5.1 | ≤30 | 20 | 1.7 | 100 | 30 |
The miniaturized can-type arrester designed and produced by our company uses our company’s high-gradient zinc oxide varistors with independent intellectual property rights:
1. Gradient range: 300-400V/mm
2. Simultaneous reduction of operating wave and steep wave residual pressure is particularly beneficial to the protection of GIS equipment.
3. The resistor has good aging performance and the aging coefficient kct<0.9 (artificial accelerated aging test at 115℃, 1000h, charge rate 90%)
High gradient metal oxide resistor technical parameters
| Type | Dimension(mm) | DC 1mA reference voltage（kV） | Leakage current under 0.75U1mA | 8/20μs nominal lightning impulse current | The ratio of residual voltage at a lightning impulse | Discharge current capacity | |||
| Outside diameter | Inside diameter | Height | 4/10μs high current impulse withstand | 2ms rectangular impulse current withstand | |||||
| Φ60×22 | 60±0.5 | 22±0.5 | 6.6-8.8 | ≤20 | 10 | 1.69 | 100 | 600 | |
| Φ71×22 | 71±0.5 | 22±0.5 | 6.6-8.8 | ≤20 | 10 | 1.65 | 100 | 800 | |
| Φ75×22 | 75±0.5 | 22±0.5 | 6.6-8.8 | ≤20 | 10 | 1.67 | 100 | 1000 | |
| Φ128×22 | 128±0.5 | 22±0.5 | 6.6-8.8 | ≤30 | 20 | 1.64 | 100 | 2200 | |
DC metal oxide resistor technical parameters
| Type | Dimension(mm) | DC 1mA reference voltage(kV) | （µA) Leakage current under 0.75U1mA | 8（kA) 8/20μs nominal lightning impulse current | ≤ Ratio of residual voltage at a lightning impulse | Discharge current capacity | |||
| Outside diameter | Inside diameter | Height | （kA) 4/10μs high current impulse withstand | (A) 2ms rectangular impulse current withstand | |||||
| Φ52×25 | 52±0.5 | 25±0.5 | 5.0-5.7 | ≤20 | 10 | 1.73 | 100 | 600 | |
| Φ60×22 | 60±0.5 | 22±0.5 | 4.4-5.1 | ≤20 | 10 | 1.71 | 100 | 800 | |
| Φ71×22 | 71±0.5 | 22±0.5 | 4.4-5.1 | ≤20 | 20 | 1.78 | 100 | 1200 | |
| Φ75×22 | 75±0.5 | 22±0.5 | 4.4-5.1 | ≤20 | 20 | 1.76 | 100 | 1400 | |
| Φ85×22 | 85±0.5 | 22±0.5 | 4.4-5.1 | ≤20 | 20 | 1.75 | 100 | 1800 | |
| Φ105×22 | 105±0.5 | 22±0.5 | 4.4-5.1 | ≤30 | 20 | 1.68 | 100 | 2200 | |
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