1. About us: Our company was established on May, 2003. We are one of the leading manufactures which is specialized in the neutral grounding protection equipments. 2. Product description 2.1THT-ZT neutral grounding resistor cabinet (NGR or NER) are used in medium-voltage AC distribution networks to limit the current . 2.2.Material:cold rolled steel , steel, stainless steel , aluminum, mild steel and galvanized steel plate , etc. 2.3 parameters Description: Standard: IEEE 32; IEC 60298 IEC 60071-1; IEC 60072-2; Method of cooling:Naturally air cooled Installation:Outdoor installation or outdoor Rated system voltage:66KV 35KV 10KV Rated phase voltage- rated voltage earthing resistor: Power Range: 1-5000A Voltage range: 220V-110KV Power Factor Range: 0.5R-1000R Dielectric Strength: AC2.5KV-260KV1min 50H (zoptional) IP Class: IP00-IP56H (optional) Rated Temperature Rise: 760°C Temperture drift: 200ppm°C 3. Working conditions maximalminimal ambient air temperature: 40℃-25 ℃ Maximalminimal barometer pressure: 1030 bar940 ba Maximal relative humidity: 100% Elevation: ≤1000 m Wind speed, maximal during the year: 34ms Isokeraunic level: Seizmic conditions: Nil Minimal technical requirements Introduction of compact transformer cubicle-type substation Cabinet material Stainless steel plate, aluminium alloy, cold-rolled steel, composite color plate, Glass fiber reinforced cement board and etc. Resistor will be complete with lifting eye, the access holes, grounding connections, links and bushings suitable for phase voltage systems and fasteners with screws or clasps. Style: Popular type, villa type, compact ty