Flameproof Metal Oxide Resistor High Gradient For Surge Arrester
Metal oxide resistor,made of metal oxide, is the main component of
the surge arrester.With the nonlinear volt ampere
characteristics,it can limit the voltage of arrester by low
resistance in overvoltage,and high resistance under normal power
The latest reserch and development of formula and production
process have been used in the production,and there are three series
–AC resistor,DC resistor,and high gradient resistor.
2, Technical Specifications:
3, Competitive Advantage:
Compared with the domestic products,there are four major
characteristics as follows:
1). High discharge current capability
All the indicators have reached the international advanced
level,such as 4/10µs high current impulse withstand ,2ms
rectangular impulse current withstand ,line discharge class,and
2). Excellent resistance to aging characteristics:
In the the load of the aging test at 115℃,1000h,the aging
coefficient of 0.9,as the aging characteristics
of the international advanced level.
3). Excellent protection feature :
For all resistor samples,the ratios of residual voltage reach the
international advanced level,under the corresponding nominal
4). The high gradient resistor, successfully developed new
products, has been put into mass production,and the maximum
potential gradient 300-400V/mm.
4, The high gradient zinc oxide resistor, with independent intellectual property rights,is used
for ours own design and production of small-sized GIS arrester.
a.Gradient range :300-400V/mm
b,The reduction of the operating wave and the steep wave residual
pressure is especially favorable
for the protection of GIS equipment .
c, In the artificial accelerated aging test, 115℃,1000h, 90% of
chargeability,it’s high performance of
the aging performance and aging coefficient Kct<0.9.
5, Our hot sale product:
|2. Outside Diameter:28±0.5mm|
|4. Reference Voltage 1mA DC.:4.6-5.5KV|
|5. Leakage Current At 0.75U1mA:10µA|
|6. Ratio of Voltage Between Residual Voltage At 8/20µs Lightning
impulse and 1mA DC:1.83|
|7. 2ms rectangular:100A|
|8. 4/10us high current:65KA|