OSFPSZ-360MVA/330kV Power Transformer
The OSFPSZ-360MVA/330kV three-phase, three-winding oil-immersed auto-transformer is engineered for high-voltage power grids and regional hub substations. Equipped with an advanced On-Load Tap Changer (OLTC), it allows seamless voltage regulation without interrupting the power supply. Built for superior electrical efficiency, thermal stability, and long-term grid safety, this transformer is the perfect solution for modern power transmission networks.
Description
Typical Applications
- Regional Grid Interconnection: Connecting 330kV backbone transmission lines to regional grids.
- Load Center Substations: Delivering stable voltage regulation for cities, heavy industrial parks, and high-energy consumers.
- Large-Scale Power Plant Integration: Stepping up power from thermal, hydro, or large renewable energy plants for long-distance transit.
- Dynamic Grid Voltage Control: Automatically adjusting voltage levels under varying load conditions via OLTC.
Key Features
- On-Load Voltage Regulation (OLTC): Features a reliable on-load tap changer that adjusts voltage automatically or remotely under heavy load, ensuring stable terminal voltage.
- Optimized Low-Loss Core: Built with top-grade, high-permeability grain-oriented silicon steel sheets using advanced step-lap mitred joints to minimize no-load losses and noise levels.
- Superior Short-Circuit Strength: The winded coils and overall structure are mechanically reinforced and compressed to survive high electromagnetic impacts during grid faults.
- Efficient Forced Cooling System: Equipped with an automated forced-oil forced-air (OFAF) cooling system that responds dynamically to temperature rises, eliminating internal hot spots.
- Sealed Anti-Aging Design: Fully sealed oil tank prevents oxygen and moisture from degrading the transformer oil, significantly lowering maintenance intervals.
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