Dry Type Transformers

For the range 30kVA to 30MVA with primary operating voltages up to 41.5kV and secondary operating voltages up to 36kV. These units are designed for operation in difficult conditions–Environmental contamination, fire hazard, high humidity or extreme climates. Dry type transformers fulfill the requirements of international standards IEC60726, as well as the European HD464 and HD538.

VACCUM CAST COIL TRANSFORMER

Vacuum cast coil transformers range from 50Kva up to 30MVA with primary operating voltages up to 36kV and secondary operating voltage up to 6kV.

STANDARD FEATURE

• HV coils vacuum cast in epoxy resin.LV windings pre-impregnated
• Casting process utilizes high performance filled epoxy
• Aluminium windings, copper optional
• Step-lapm iteredcore
• 155°C insulation system and100°C average temperature rise
• Four full capacity tap son HV winding rated ±2x2.5%
• Provisions for lifting core and coil assembly
• Rating plate
• Temperature control device
• Earthing terminals
• Base equipped with bidirectional rollers or designed fors kidding

RESIN ENCAPSULATED TRANSFORMER

The resin-encapsulated dry-type trans-former,offers specific advantages .For more than a quarter of a century we have been using only epoxy resin and fibre -glass to encapsulate the wire layers .Epoxy resin moulding reinforced with fibre-glass roving’s is a material of outstanding strength.

STANDARD FEATURES

• Ratings: from 30kVA to 30MVA
• Primary Voltages : up to 41.5kV
• Secondary Voltages : up to 36kV
• BIL: According to standards
• HV Winding : Copper
• LV Winding : Aluminum
• Step-lap mitred core
• Tapping 2x2.5%
• Temperature device
• Fire class F1
• Environmental class E2
• Climatic class C2
• Built-in cooling channels to dissipate heat
• Environmentally friendly
• Linear distribution of lightning impulse voltageBase equipped with bi-directional rollers or designed for skidding arrangement