High Voltage 220kv Transformer with Oil Immersion Cooling

• 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 the cornerstone for urban power grids, power stations, and large industrial and mining enterprises. It excels with a high overload capacity, zero partial discharge, minimal noise, and robust short circuit resistance, all contributing to an enhanced power supply system stability. Our special design reduces no-load loss by 20%, load loss by 5%, and noise levels by 3-5 dB compared to national standards. Available models include S11, S18, S20, SS20, SSZ20, SSZ22, OSSZ20, among others.

We offer the three-phase, three-winding 180,000kVA/220kV liquid-filled transformers for various power stations, featuring unparalleled performance attributes:

1. No Partial Discharge : Measured partial discharge is exceptionally low, at less than 50pC, far below the background noise level.

2. High Efficiency and Low Loss : State-of-the-art core and coil design, paired with leakage magnetic flux control technology, significantly mitigates additional and stray losses.

3. Low Noise : Noise levels are remarkably low, measured at under 60dB, outperforming national standards.

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

5. Maintenance-Free Design : Comprehensive design includes air self-cooling, fiberglass dry-type bushings, and metal corrugated internal oil-type conservators, ensuring minimal on-site maintenance, ideal for unattended substations.

6. Compact Structure Design : Utilizes an advanced 220kV end inlet method for a compact and convenient structure, facilitating seamless transportation and installation.

7. Strong Short Circuit Resistance : Employs foreign short-circuit mechanical force verification procedures, ensuring compliance with design requirements through all assembly stages.

8. Over 40-Year Design Life : Features a unique high-temperature-resistant hybrid insulation system, verified through temperature field simulation analysis, ensuring longevity matched across all transformer components.

9. Passes All Routine and Type Tests at Once : Demonstrates advanced domestic level performance in all aspects.

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

Chemical Stability: These materials exhibit outstanding chemical stability, attributed to the lack of weak C-H bonds.

Heat Resistance: Capable of stable operation at 220
ºC for prolonged periods and tolerating short-term peaks at 350
ºC. At 250
ºC, they neither melt, flow, nor support combustion. Even at 750
ºC, no toxic or corrosive gases are emitted.

Safety and Environmental Protection: These materials ensure safety for both humans and animals, producing minimal smoke and no harmful gases when burned.
 

In-house High Voltage Testing Center