Product Introduction
Overview
• Designed for high-voltage transmission systems, 52–230 kV power transformers deliver stable voltage transformation with optimized electrical, thermal, and mechanical performance. Advanced core design, precision winding, and robust insulation systems ensure low losses, high short-circuit strength, and long-term reliability. Compliance with international standards supports efficient operation, simplified maintenance, and dependable lifecycle performance.
Application
• 52-230kV power transformers serve transmission substations, collector stations, and large industrial or infrastructure loads, enabling long-distance power transfer with optimized losses. They interface generation plants, wind and solar farms, interconnection tie-lines and urban substations, helping utilities manage power flows, maintain system voltage profiles, and accommodate future load growth or network reconfiguration.
Advantages
• 52-230kV power transformers offer low-loss designs, robust short-circuit withstand capability and optimized insulation systems for demanding operating cycles. Advanced cooling, monitoring and diagnostic options enhance loading flexibility and asset visibility, supporting condition-based maintenance. Tailored tap ranges, vector groups and bushings simplify integration into existing substations, reducing lifecycle ownership costs and improving overall grid reliability.
Feature
• We have adopted series of important reforms on the 52-230 kV level three-phase oil-immersed on-load tap-changing transformer referring material, process and structure. The transformer has the features of small size, light weight, high efficiency, low loss, low noise, reliable operation etc. which can reduce a large amount of power network loss and operation expense with significant economic benefits. It is suitable for power plant, substation, heavy section plant or enterprises etc.
Environmental Conditions
• Type: outdoor
• Ambient temperature: max. Temperature: +50℃; min. temperature: -55℃
• Altitude: ≤1000m (temperature rise shall be corrected when 1000m)
• Relative humidity: ≤90% (25℃)
• Installation place: without corrosive gas and apparent fouling.
Fittings
| Standard fittings | Optional Fittings |
|---|---|
| Primary bushings (OIP / RIP) | RTCC panel |
| Secondary bushings | Automatic voltage regulator (AVR) |
| Buchholz relay | Terminal connectors |
| Off circuit / On-load tap changer | Online dissolved gas analyzer (DGA) |
| Pressure relief device / explosion vent | Provision of Nitrogen injection fire protection system (NIFPS) |
| Thermometer | Aircell in Oil conservator |
| Silica gel breather | Aircell rupturing relay |
| Drain / Filter valves | Impact recorder |
| Oil level gauge | Smart breather |
| Rating & diagram plate | Sudden Pressure Relay |
| Lifting lugs | Oil filter unit for OLTC |
| Skid base / roller arrangement | Thermocycle Filter |
| Winding temperature indicator with alarm and trip contacts | Surge Arrester / Snubber circuit for supply terminals |
| Oil temperature indicator with alarm and trip contacts | |
| Magnetic Level Gauge |
