State-owned power generator NTPC has invited bids for supply of inverter transformers for its solar project in Solapur district of Maharashtra.
The scope of work includes design, engineering, manufacturing, supply, type testing, and supervision of installation and commissioning of inverter-transformer.
To be eligible, the bidder should have designed, manufactured and supplied grid-connected inverter-transformers of 11 kV or higher voltage class for cumulative capacity of 18 MVA or above, out of which at least one such supply order, for a single plant, should be of 5 MVA or above capacity.
The reference plant for which solar inverter transformers of 5 MVA or above capacity (consisting of one or more) were supplied, must have been in successful operation for at least six months prior to the date of techno-commercial bid opening.
The converter-duty inverter-transformer must have minimum cumulative capacity of 23 MVA—having high voltage capacity of 11 kV with individual size as per specification—and must be capable of operating in continuous mode at 50 degrees centigrade temperature.
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