Neutral earthing resistors are designed to cope with the most climatic conditions and saliferous atmospheres and is also developed according to current and timeratings. These are made from tough steel grids of a high quality iron-chrome-aluminium or as allowed by aisi 304 ss and are non-corroding and also offer good electricity stability. This iee standard 32-1972 recognized resistors offer distinct advantages of durability and reliability. It 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 .The current ranges upto 3000 amps; time ranges to 60 second & system voltage ranges upto 66kv. The precise resistance value is determined at the manufacturing stage, which remain constant throughout life. It is applied in power distribution, mining and industrial installations, indoors and outdoors. These neutral earthing resistors are virtually maintenance free suiting customer needs.
