Wind Transformer

DESIGN CAPACITIES

• Ratings: 500kVA to 10000kVA.
• Primary Voltage: 66000/33000/22000.
• Secondary Voltage: 33000/690.
• Built to customer specifications in accordance with IS 2026 Energy Efficiency Standards.

• DPC copper.
• CRGO core./ Amorphous Core.
• Pressure relief device.
• HV & LV Bushings.
• Grounding Bracket.
• Conservator Tank.
• Insulation material.
• Power oil.
• OTI/WTI indicator.
• Buchholz relay.
• A non resettable device that detects internal transformer faults, incorporates pressure relief, and provides an external indication visible from the ground.

OPTIONAL ACCESSORIES AND FEATURES

Transformers may be provided with the following optional items if specified by the purchaser.

• Surge arrester mounting provision.
• Clamp type low voltage terminals.
• Stud type or spade type low voltage bushings.
• High voltage of circuit taps.
• Cable Box.
• Additional tests may be requested by the purchaser and shall be performed.
• Purchaser specified impedance limits.
• Alternative protection devices, specified by the purchaser.
• Purchaser specified maximum mass.

STANDARD WIND TRANSFORMER TESTS

• Winding Resistance Measurements.
• Ratio and Polarity Measurements.
• Exciting Current and No Load Losses Measurement.
• Impedance and Load Losses Measurements.
• AC Dielectric Test.
• Induced Voltage Test.
• Core Ground Test.
• Oil BDV Test.
• Magnetic Balance Test.
• Insulation Resistance Test.
• Vector Group Test.

OPTIONAL WIND TRANSFORMER TESTS

• Temperature Rise.
• Sound Level.
• Radio Influence Voltage.
• Partial Discharges (Corona).
• Basic Insulation Impulse Level.
• SFRA Test.
• Short circuit test.
• Knee Point Voltage of bushing CT.
• Polarity and ratio test of bushing CT.
• Capacitance and Tan-Delta Test.