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Brief introduction
Neutral grounding resistor is used to decrease transient overvoltage when single-phase grounding, eliminate arc flash hazard and quickly locate the fault line and clear it up. This system is applicable to 6-35KV power distribution grid of cable lines in cities, large industrial enterprises, factories, airports, seaport and etc, as well as 0.66KV system in mine digging and 0.4KV/6KV/10KV system in power plants. -
Operating conditions
2.1Generally applicable to outdoors,used in the system of 50 Hz and 60 Hz.
2.2 The altitude shall not exceed 3500m.
2.3 Ambient temperature : -20centigrade~+70centigrade,Relative humidity: less than 95%
2.4 Wind pressure is not higher than 700Mpa (equal to wind velocity 34m/s)
2.5 Earthquake intensity :
