220kv Power Transformer with 31500-420000kVA Capacity for High Efficiency Energy Distribution

• Customization: Available
• Application: Power
• Phase: Three
• Model NO.: S11
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Multi-winding Transformer
• Certification: ISO9001-2000, ISO9001
• Usage: Power Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Brand: Ceeg
• Rated Capacity: 31500-420000kVA
• Primary Voltage: 220/230/242kv
• Secondary Voltage: 115/121/69/66/63/33/35/38.5kv
• Frequency: 50/60Hz
• Impedance: 12/14
• Connection Symbol: Ynyn0/Ynd11/D11
• Tapping Range: 8*1.25%/2*25%
• Trademark: CEEG
• Origin: Jiangsu, China
• HS Code: 8504349000
• Production Capacity: 1

Product Description

The CEEG 220kV oil-filled power transformer is an exemplary solution for urban power grids, power stations, and large industrial and mining enterprises. With its high overload capacity, zero partial discharge, minimal noise, and robust short circuit resistance, this transformer significantly enhances the stability of power supply systems. Thanks to our innovative design, we've achieved a remarkable 20% reduction in no-load loss, a 5% reduction in load loss, and a 3-5 dB decrease in noise levels compared to national standards. Our diverse model range includes S11, S18, S20, SS20, SSZ20, SSZ22, OSSZ20, and more.

We proudly offer the three-phase, three-winding 180,000kVA/220kV liquid-filled transformers, specifically designed for an array of power stations. Key features include:

1. No Partial Discharge : Actual measured partial discharge is remarkably less than 50pC, far below the background noise level.

2. High Efficiency and Low Loss : Our innovative core and coil design, combined with advanced leakage magnetic flux control technology, drastically reduces additional and stray losses.

3. Low Noise : Actual measured noise levels are impressively below 60dB, significantly surpassing national standards.

4. Intelligent Design : Fully compliant with the operational demands of intelligent substations.

5. Maintenance-Free Design : Features include air self-cooling methods, robust fiberglass dry-type bushings, and metal corrugated internal oil-type conservators. This design ensures zero routine on-site maintenance, perfect for unattended substations.

6. Compact Structure Design : Utilizing the advanced 220kV end inlet method, the transformer boasts a compact structure, ensuring effortless transportation and on-site installation.

7. Strong Short Circuit Resistance : Incorporates foreign short-circuit mechanical force verification procedures to guarantee that all assembly stages meet rigorous design requirements.

8. Over 40-Year Design Life : A unique high-temperature-resistant hybrid insulation system, based on precise temperature field simulation analysis, ensures that all components have the same extended design life as the transformer itself.

9. Passes All Routine and Type Tests at Once : Our transformer's overall performance meets and exceeds advanced domestic standards.

DuPont Nomex--World-Recognized High-Quality Electrical Insulating Materials

Chemical Stability: These materials exhibit exceptional chemical stability, thanks to the absence of weak C-H bonds.

Heat Resistance: Capable of stable operation at 220
ºC for extended periods and can withstand short-term operation at 350
ºC. At 250
ºC, they remain non-melting, non-flowing, and do not support combustion. Even at 750
ºC, these materials release no toxic or corrosive gases.

Safety and Environmental Protection: Safe for both humans and animals, these materials produce minimal smoke concentrations and emit no harmful gases when burned.
 

In-house High Voltage Testing Center