Neutral Grounding Resistor

● ZENITHSUN Neutral Grounding Resistors are designed to provide added safety to industrial distribution systems by limiting ground fault current to reasonable levels.
● In a typical solidly grounded four wire system, the neutral is tied directly to earth
ground. This can cause high ground fault current (typically 10,000 to 20,000 amps) and excessive damage to transformers, generators, motors, wiring, and associated equipment.
● Inserting a ZENITHSUN Neutral Grounding Resistor between neutral and ground limits fault current to a safe level (typically 25 to 400 amps) while still allowing sufficient current
flow to operate fault clearing relays. Limiting fault current also reduces the problem of transient overvoltages (up to six times normal voltage) which can occur during arcing type ground faults.
● Compliance with standards:
1) IEC 60529 Degrees of Protection Provided by Enclosures
2) IEC 60617 Graphical Symbols and Diagrams
3) IEC 60115 fixed resistor for use in electronic equipment
● Installation environment:
Installation Height: ≤1500 meters ASL,
Ambient Temp: -10℃ to +50℃ ;
Relative Humidiry: ≤85%;
Atmospheric Pressure: 86~106kPa.
The installion place of load bank should be dry and ventilative. There is no flammable, explosive and corrosive materials around load bank. Due to resistors are heaters, the temperature of the load bank will be higher and higher, there should be leave some space around the load bank, avoid the influence of outside heat source.
● Please note custom designs may be available. Please speak to a member of our sales team for more information.