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Star Delta Transformers Ltd.
Extra High Voltage (above 66 KV & upto 132 KV voltage class)

SDTL manufactures EHV Power Transformers of voltage class upto 132 KV using advanced technology & state of art machinery. Windings are made on automatic machines, the core & coil assembly is dried in vacuum drying oven of capacity 70 cubic meters. Transformers are rigorously tested at each stage of using modern testing equipments. We has already supplied more than 20 EHV transformers upto 40 MVA rating which are successfuliy operation for more than 5 yrs.

Technical Specifications

Ratings CRGO - Upto 40 MVA
Applicable Standards IS, IEC, ANSI, JIS, DIN, BS Etc.
Cooling ONAN, ONAF
Insulating Fluid Mineral Oil to specification
Frequency 50 Hz, 60 Hz
Polarity As specified
Primary voltage 66 KV,110KV, 132 KV (as per customer specification)
Secondary Voltage 66KV, 33KV (Other Voltages as required)
Winding material Copper
Taping range Off circuit and On load tap changers as per customer specification
Impedance In line with applicable standards.

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