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H E A V Y E L E C T R I C A L S
H E A V Y E L E C T R I C A L S
HINDUSTHAN
HEAVY ELECTRICALS PVT. LTD
HINDUSTHAN
HEAVY ELECTRICALS PVT. LTD
Power & Distribution Transformers
Power Sector
Power & Distribution Transformers
25 kVA to 5000 kVA up to 33 kV Class
Hindusthan Heavy Electricals Pvt. Ltd. manufactures a wide spectrum of oil-immersed Power & Distribution Transformers engineered for continuous high-load electrical distribution. Built strictly in compliance with IS 1180 (Part-1), BEE Star Energy Efficiency Ratings, and IEC standards, our transformers deliver maximum operational efficiency and high dielectric reliability across industrial foundries, utility grids, and commercial networks.
Technical Specifications
Key manufacturing parameters and engineering standards:
| KVA Rating Range | 25 kVA to 5000 kVA (Custom ratings available) |
|---|---|
| Voltage Class | 11 kV, 22 kV, and 33 kV Class |
| Standard Conformance | IS 1180 (Part-1), IS 2026, BEE Star Rating Level 1-3 |
| Tap Changer Type | Off-Circuit Tap Switch / On-Load Tap Changer (OLTC) |
| Winding Conductor | 99.9% High Conductivity Electrolytic Copper / Aluminum |
| Cooling Type | ONAN (Oil Natural Air Natural) |
| Insulation Class | Class A Mineral Oil Immersed |
Key Engineering Highlights
- Precision laser-treated CRGO core laminations for minimal no-load losses.
- Vacuum degassed oil filling ensuring zero moisture absorption and max dielectric strength.
- Sturdy mechanical clamping and disc winding structure tested for extreme short-circuit withstand capacity.