Product Profile of Neutral Earthing Resistors for Fault Protection
The Neutral Earthing Resistors for Fault Protection restricts the flow of current during an earth fault on an AC distribution system. It is connected between the neural point of a transformer or generator and earth. The Neutral Earthing Resistors can be used in power distribution, mining and industrial installations, indoors and outdoors. Iresco Electricals Pvt. Ltd. Manufactures Neutral Earthing Resistors for Fault Protection.
Iresco Electricals Pvt. Ltd. Is the supplier of neutral earthing resistors, battery discharge resistor unit, wire wound resistors, potentiometers, wire/plate grids, edge wound resistors, etc. The Neutral Earthing Resistors are designed to cope with the most climatic conditions and saliferous atmospheres. These resistors offer distinct advantages of durability and reliability. They meet IEE Standard 32-1972.
Key Features of Neutral Earthing Resistors for Fault Protection
- Capacity: A neutral earthing resistor has a resistance value specified to limit the fault current within a system to a pre-determined value which is sufficiently low to prevent damage yet high enough to operate fault-clearing relays.
- Each system is designed according to current and time ratings, which are specified to be compatible with the protection, switch gear. The range available includes; current to 3000 amps; time to 60 seconds and system voltage to 66kV. The resistance value is precise and determined at the manufacturing stage, remaining constant throughout life.
- Materials: In neutral earthing resistors are made from tough steel grids of a high quality iron-chrome-aluminium or AISI 304 SS allow. They are non-corroding and offer good electricity stability.
- Insulation: Mica and ceramic insulators throughout.
- Ventilation and Cooling: Neutral earthing resistors and contained in fully protected and ventilated steel enclosures.
- Construction: Neutral earthing resistors consist of wire or plate grid elements mounted ceramic insulators with a filamic tube between their base and the plated high tensile steel support rod. Adjacent elements are bolted together to provide connections unaffected by heating and cooling cycles.
