0.66kv Neutral Grounding Resistors Factory
Packaging and Delivery
0.66kv Neutral Grounding Resistors Factory :
Baoding Mingrui Optoelectronics Technology Co., Ltd. is located in the High and New Technology Industrial Zone with more than 7 years of experience in electrical field. Our company has two business entities (Light Energy Company and Electric Power Company). Light Energy Company is specially engaged in the study of solar power generation and LED lighting. Electric Power Company is a high and new technology enterprise that is engaged in the research, production, sale and service of power system automation equipment.
Neutral Grounding Resistors are used to protect power transformers, power generators and other associated equipment in your power systems against 50/60 Hz faults (short circuit) and transient phenomena (lightning).
SPECIFICATIONS (Order Note)
There are six parameters needed to specify the neutral grounding resistor.
1. Rated voltage line to neutral or system voltage.
2. Rated fault current.
3. Rated “duration time” of the line to neutral voltage not exceeding the allowable temperature rise.
4. Rated Resistance.
5. Application environment, indoor or outdoor.
6. Enclosure material, ss plate or normal cold rolled sheet.
• Rated current: from 1 amp to 2000 A
• Rated voltage: from 0.4 to 35kV
• Rated Resistance: from 1 ohm to 2000 ohm
• Rated time: 1 sec to continuous time rating
with IEEE-32. Routine tests performed on each Neutral Grounding Resistor are measurement of resistance, high voltage power frequency, insulation measurement, aspect verification, dimensional control. Mingrui’s internal quality system has been developed and certified under ISO 9001 quality system
Standard unit includes the stainless steel resistor assembly plus all the required insulators, internal connections and hardware installed in a standard safety enclosure. Neutral Grounding Resistor units are completely assembled, prewired, and tested at our facility. For shipping all units are crated for added protection and ease of handling.
•Stainless steel, cold rolled plate construction. Custom paint finish is available.
• Top or side mounted entrance bushing(s).
• Screened covers for indoor applications.
• Support stands for elevating the enclosure above ground.
Current or potential transformers mounted and prewired at our facility
ON or OFF Load disconnecting switches
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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