Sell NGR Low Voltage Neutral Grounding Resistors(MRD-NGR)
Packaging and Delivery
Sell NGR Low Voltage Neutral Grounding Resistors(MRD-NGR) :
Parameters of Grounding Transformer
Insulation Grade: H
Cooling-down Method: AN
Temperature Rise ? 100K
Proctective Grade of paper insulation dry-type connected transformer is IP00 (without casing), IP20 and ip23 (with casing)
Insulation level, impedance voltage, no-load loss and on-load loss are as per National Standards.
Test of inpedance: high voltage to low voltage or grouding ?300 M?, low voltage to grounding ?100 100 M?
To serve you better, please kindly offer following information when ordering
1 generator rated voltage, transformation ratio of grounding transformer, resistance value;
2 insulation form of grounding transformer;
Baoding Mingrui Optoelectronics Technology Co.Ltd has outstanding technical researching team and superior equipments, specially concentrate on research & development, production, sales and service of neutral grounding series products of power distribution system. The transformer neutral grounding resistance we developed and produced is applicable to 6~35KV power distribution grid of cable lines in cities, large industrial enterprises, factories, airports, seaports, subway and etc. as well as 0.66KV system in mine digging and 0.4kv/6kv/10kv system in power plants.
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