What is NGR and why do we use this, and how does it works?

Question

Accepted Answer

NGR stands for Neutral Grounding Resistor. It is used to limit the fault current in a power system.

NGR is connected between the neutral point of a transformer or generator and the ground.
It limits the fault current by increasing the impedance of the neutral point.
NGR protects the equipment from damage and reduces the risk of electrical shock to personnel.
It works by limiting the current flow through the neutral point during a fault condition.
NGR is commonly used in power systems with high fault currents, such as in mining and industrial applications.