Neutral Grounding Resistor

Neutral Grounding Resistor (NGR) works as protection part in the high voltage transmission line system instead of damping resistor. Resistor parameters 1.1 System voltage : 70V 1.2 Resistance loop: 70/ KV 1.3 Rated current and rated time: 200A/10S 1.4 Rated resistance value: 200 ohm 1.5 Resistance material: 310s 1.6 Resistance error: ±5% 1.7 Frequency withstand voltage: 140KV on power for 1min(50HZ). 1.8 Degree pollution for creepage distance for external: 35mm/KV 1.9 Degree pollution for creepage distance for internal: 25mm/KV 1.10 Net distance in space 1.11 Working condition 1.11.1 Installation mode: outdoor 1.11.2 IP Degree: IP23 1.11.3 Cable connecting mode: incoming from above and outgoing from bottom. 1.11.4 Enclosure: pot galvanizing plate 1.11.5 Overall dimension: W6500 X D1400 X H3800 1.11.6Units connecting mode: stainless steel tube connecting outside. 1.11.7Overall diagram: LG09.091909BZ001-2 1.12 : This resistor is following with IEEE32. DL/T 780-2001 Single box resistor 2.1 Rated resistance value: 25 ohm 2.2 Resistance value error: ±5% 2.3 Frequency withstand voltage: 42KV on power for 1min(50HZ) 2.4 Degree of pollution for creepage distance for external: 35mm/KV. 2.5 Degree of pollution for creepage distance for internal: 25mm/KV 2.6 Installation mode: outdoor. 2.7IP Degree: IP23 2.8Enclosure material: pot galvanizing plate 2.9 Overall dimension: W1200 X D1400 X H1120 2.10 Overall diagram: LG09.091909BZ001-1 Resistor units 3.1 Units 3.1.Units names: 310s 3.1.2 Resistive: 0.95±0.05 3.1.3 Units temperature rate: K T 20 100 200 300 400 500 600 700 K 0 1.046 1.107 1.171 1.223 1.276 1.315 1.355 3.1.4Rustproof: good 3.1.5 Mechanical : good Support insulator technical parameters for outside TypeRated voltage kVMechanical damage load (not less ) Creepage distance mmWeight kgbendingtorquepositivereversivekNkNkN.mZS-20/162016--40019.5ZS-20/302030--40029ZS-35/163516--62540ZS-60/8608--120045