NEUTRAL GROUNDING RESISTOR ( NGR )

An NGR primarily a safety device. It drastically reduces shock hazards to personnel and equipment. They provide effective protection against high voltage.
The Resistors are suitably insulated to withstand working pressures up to 23 K.V./33 K.V. The Grids are manufactured from a special alloy of stainless steel which makes them rust less and unbreakable thus eliminating maintenance problem and suitable for installation in outdoor atmosphere.

SELECTION OF RESISTOR

DESIRABLE QUALITIES OF RESISTOR MATERIAL ARE :
o HIGH RESISTIVITY
o LOW RESISTANCE TEMPERATURE COEFFICIENT
o CORROSION RESISTANCE