75000kVA Rated Capacity Oil-Filled Transformer with 33/35kv Primary and Variable Secondary Voltage

• Customization: Available
• Application: Power
• Phase: Three
• Model NO.: S11
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Multi-winding Transformer
• Certification: ISO9001-2000, ISO9001
• Usage: Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Brand: Ceeg
• Rated Capacity: 100-75000kVA
• Primary Voltage: 33/35kv
• Secondary Voltage: 0.4/3.15/3.3/6.3/6.6/10.5/11kv
• Frequency: 50/60Hz
• Impedance: 4%/6%
• Connection Symbol: Yyn0/Yd11/Ynd11
• Tapping Range: ±2*2.5%/±5%
• Transport Package: International Wooden Case or According to Client′s
• Trademark: CEEG
• Origin: Jiangsu, China
• HS Code: 8504349000
• Production Capacity: 20

Product Description

The 35kV series oil-immersed distribution transformers produced by China Electric Equipment (Jiangsu) Transformer Manufacture Co., Ltd. (CEEG) are meticulously engineered to deliver superior performance. Featuring low loss, low noise, minimal temperature rise, and exceptional reliability, these transformers are designed to be free of core-hanging and oil leakage. Utilizing state-of-the-art design software, we conduct in-depth electromagnetic calculations and thorough analyses of the main and longitudinal insulation, impulse voltage gradient distribution, end electric field distribution, and both short-circuit thermal and dynamic stability. This rigorous design process ensures ample design margins, guaranteeing the safe and reliable operation of our transformers.

Product Characteristics

1. Revolutionary Core Technology: The transformer incorporates a core with seven-stage temperature control technology.
2. Longevity and Quality: With a mixed insulation system and premium parts, this transformer is engineered for a lifespan of 30 years.
3. Whisper-Quiet Operation: Noise levels are reduced by 3 to 5 decibels below the national standard, ensuring a quieter environment.
4. Leak-Proof Design: Equipped with acrylic one-time molded seals, the transformer undergoes fluorescent, positive pressure, and negative pressure leak tests to ensure zero leakage.
5. Unmatched Reliability: Features include an oil level thermometer, a pressure relief valve with contact at the top of the oil tank, an oil level indicator with contact in the oil storage tank, and anti-fouling reinforced pure porcelain oil bushings. These enhancements enable the transformer to perform reliably even in heavily polluted environments.
6. Enhanced Structural Integrity: The coil is bolstered by a high-quality insulating skeleton. Internal and external braces, all meticulously chamfered, ensure uniform electric field distribution and enhanced reliability. Self-locking lock nuts on all fasteners prevent loosening, allowing the transformer to endure long-distance transportation without damage or core-hanging issues.

SF Z 10-×××/××

S/N	Symbol	Meaning
1	S	Three phases
2	F	Air-cooling(blank for Natural cooling)
3	Z	On load tap changing(bland for no-load tap changing)
4	10	Symbol of Performance level
5	xxx	Rated capacity,kVA
6	xx	Voltage grade of HV winding,kV