Type: Self Cooled Outdoor Type.
Applicable Standard: IEEE 32.
Painting; RAL 7032.
Wind speed: 136 KM/hr.
IP degree: Not be less than IP51.
Mean maximum temperature during 24 hours: 40oC
Peak ambient air temperature: 50oC
Minimum temperature; 8 oC
Maximum relative humidity; 95% at dry bulb Temperature of 43 oC.
Method of system grounding; Resistance Earthed
Function
Neutral Grounding Resistor are used to protect power transformer, power generator and other associated equipment in your power systems against 50/60Hz faults(short circuit) and transient phenomena(lighting).
Specifications
There are three parameters needed to specify the neutral grounding resistor.
Rated voltage line to neutral or system voltage
Rated fault current
Rated "time on "of the line to neutral voltage not exceeding the allowable temperature rise.
Enclose options:
Mill galvanized, aluminum, stainless steel and hot-dipped galvanized construction. Custom paint finish is available.
Top or side mounted entrance bushing(s)
Screened covers for indoor applications.
Support stands for elecation the enclosure above ground...
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. The long-term and close cooperation between our company and Beijing University and University Of North China Electric Power has formed a strong high-tech talent system. Our company also traces national and foreign electric technology development trends, develops new products, and is devoted to power automation product technology to make progresses.
