Transformers
Transformers Overview
Transformers are fundamental to the transmission and distribution of electrical energy. Their design varies depending on application, construction, rated power, and voltage class. The range includes Generator Transformers, Power Transformers, and Distribution Transformers.
They are available in Single Phase, Double Phase, and Three Phase configurations. At GoodVolt Engineers & Controls, we specialize in manufacturing high-efficiency, low-loss, 5 star-rated transformers that deliver superior performance and extended service life, adhering to both national and international standards.
Wide Range of Transformers
Power Transformers (OCTC & OLTC Type)
Distribution Transformers (OCTC & OLTC Type)
Hermetically Sealed Transformers
Corrugated Tank Transformers
Inverter Duty Transformers
Furnace Transformers
Station Transformers
Auto Transformers
Auxiliary Transformers
Isolation Transformers
Generator Transformers
Special Transformers (Customized)
Dual Ratio / Multi-Winding Transformers
Transformers with Built-in HT AVR
Step-Up / Step-Down Transformers
Earthing & Neutral Transformers
Constant Voltage Transformers
Cast Resin & VPI Dry Type Transformers
Trolley Mounted Transformers
Technical Specifications
| Type | Oil-Immersed (ONAN/ONAF), Dry-Type (VPI), Cast Resin (CRT) |
|---|---|
| Rated Capacity | 100 kVA to 3500 kVA |
| Primary Voltage | 11 kV / 22 kV / 33 kV |
| Secondary Voltage | 433V / 690V (as required) |
| Frequency | 50 Hz |
| Vector Group | Dyn11 / Yyn0 / custom |
| Cooling Type | ONAN / ONAF / AN / AF |
| Insulation Class | Class A / F / H |
| Tapping Range | ±5% in 2.5% steps (Off-circuit/OLTC) |
| Efficiency | As per BEE 3/4/5-Star ratings |
| Core Material | CRGO / Amorphous |
| Winding Material | Electrolytic Copper / Aluminum |
| Tank Type | Corrugated / Radiator / Hermetically Sealed |
| Protection Devices | Buchholz Relay, PRV, WTI, OTI, MOG, Breather |
| Enclosure | IP23 / IP44 / IP55 |
| Fire Safety | Self-extinguishing, low smoke emission |
| SCADA Compatibility | SCADA/IoT-ready (Modbus RTU/TCP, IEC 61850) |
| Standards Compliance | IS 2026, IS 1180, IS 11171, IEC 60076, IEC 60076-11 |