High Voltage 220kv Transformer with 31500-420000kVA Capacity and 115/121/69kv Secondary Voltage

• 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 essential component for urban power grids, power stations, and large industrial and mining enterprises. It offers superior advantages such as unparalleled high overload capacity, no partial discharge, minimal noise, and exceptional short circuit resistance, thereby significantly enhancing the stability of power supply systems. With our groundbreaking design, we've achieved a 20% reduction in no-load loss, a 5% reduction in load loss, and a noise reduction of 3-5 dB compared to national standards. Our extensive model range includes S11, S18, S20, SS20, SSZ20, SSZ22, OSSZ20, and more.

Presenting our exceptional three-phase, three-winding 180,000kVA/220kV liquid-filled transformers, meticulously crafted for diverse power station applications. Key features include:

1. No Partial Discharge : Remarkably, the actual measured partial discharge is less than 50pC, outperforming the background noise level.

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

3. Low Noise : Impressively, the actual measured noise level is below 60dB, greatly surpassing national standards.

4. Intelligent Design : Engineered to meet the sophisticated operational requirements of intelligent substations.

5. Maintenance-Free Design : Featuring an all-encompassing design with air self-cooling methods, fiberglass dry-type bushings, and metal corrugated internal oil-type conservators, this transformer requires no routine on-site maintenance, making it ideal for unattended substations.

6. Compact Structure Design : Employing an advanced 220kV end inlet method, this transformer boasts a compact overall structure, ensuring easier transportation and on-site installation.

7. Strong Short Circuit Resistance : Utilizes advanced foreign short-circuit mechanical force verification procedures, ensuring all assembly stages of the transformer body adhere to rigorous design requirements.

8. Over 40-Year Design Life : Our unique high-temperature-resistant hybrid insulation system, founded on temperature field simulation analysis, guarantees that all transformer components possess the same robust design life as the transformer itself.

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

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

Chemical Stability: DuPont Nomex materials exhibit excellent chemical stability due to the absence of weak C-H bonds.

Heat Resistance: These materials can efficiently operate at 220
ºC for prolonged periods and manage short-term operation at 350
ºC. At 250
ºC, they maintain their integrity without melting, flowing, or supporting combustion. Even at extreme temperatures of 750
ºC, no toxic or corrosive gases are emitted.

Safety and Environmental Protection: DuPont Nomex materials are non-toxic, producing minimal smoke and no harmful gases when burned, ensuring safety for both humans and animals.
 

In-house High Voltage Testing Center