Supply of NGR for Transformer
Reference: SDI0471P16 3/4/2016, Location: Asia
Category: Transformers
Scope of Work
The company invites bids for supply, installation & commissioning of 13 nos. of NGR for transformer for oil, moran through its e-procurement site under single stage two bid system.
NGRs are used in industrial Power Systems for resistance grounding of star connected generators and transformers. NGR is connected between ground and neutral of transformers, generators, busbars and grounding transformers. NGR limits the faults current to value enough to operate protective relays, thereby preventing unwanted damage to the system.
The NGR unit shall consist of two parts: 1) the resistor grid enclosed in a metallic enclosure, and 2) the NGR monitoring system, enclosed in a separate chamber of the same enclosure/panel.
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