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Substation / Power Transformer
The substation/Power Transformer is the heart of a substation. Our transformer is designed, manufactured, and tested to high standards of practice as per specification, with quality and reliability. We manufacture both on-load & off-circuit tap switch transformers. This Transformer is generally used for stepping up & down voltage in the transmission network. The transformer tank is suitably designed to allow safe lifting and transportation, effectively sealed for any oil leakage. Transformers are designed & manufactured with due care on health & safety aspects as per respective standards like IEEE, CSA, ANSI, IEC, and NEMA.
Design Capabilities
- Installation: Outdoor
- Rating: Upto 150 MVA
- Voltage: Upto 230 kV or any specific
- Vector Group: Dyn5, Dyn11, YNyno any specific
- Type of Cooling: ΟΝΑΝ, ΟΝΑN / ONAF, KNΑΝ, ΚΝΑΝ / KNAF
- Phase / Frequency: 3 Phase, 50/60 Hz
- Insulating Fluid: Natural Ester Oil, Synthetic Ester Oil, Mineral Oil as per IEC60296, ASTM D3487
- Paint: Epoxy, Polyurethane or customer specific
- Winding Material: Aluminum / Copper
- Tap Changer: Off Circuit or On Load Tap Changer
- Applicable Standards: IEEE, CSA, NEMA, DOE, ANSI, IEC 60076
Applications
- Solar & Wind applications
- Large Industries
- Mining stations & Power plants
- Onshore & Offshore platforms
- Receiving stations
- Data centres
Standard Features
- Mildsteel transformer tank & Cabinets as applicable
- Rating & Diagram plate
- On Load Tap Changer / Off Circuit Tap Changer
- With/Without conservator as per customer specification
- HV Terminal bushing
- LV Terminal bushing
- Radiators
- Marshalling box with control wiring
- Inspection cover
- Filter & Sampling valves
- Buchholz relay & other protection equipment as required
Special Features
- Highest dielectric insulation property to withstand lightning impulse
- Step lap designed CRGO laminations for lower losses & excitation current
- Pre-heating of coils under vacuum to achieve desired compression height
- Perma wood clamping rings for uniform compression of primary & secondary winding
- Adequate ducts between layers, coils, discs for max oil flow & reduced hot spot temperature
Optional Features
- HV and LV Cable box / Busduct / ATC
- Winding temperature indicator with WTI CT
- Surge arrestor / NGR
- Bi-directional rollers
- DGPT relay for corrugated tank
- Rapid pressure rise relay
- Provision for NIFPS
- Pulling lugs & jacking pads
- Isolating valves for radiator
- Marshalling box for all wirings
- Magnetic oil gauge with A/T contacts
- Corrugated / Conventional radiators
