110~220kv Oil-Immersed Power Transformer with 6.3~69kv Secondary Voltage

• Customization: Available
• Application: Power
• Phase: Three
• Model NO.: SFSZ11
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Multi-winding Transformer
• Certification: ISO9001-2000, ISO9001, CE, ISO14001, ISO45001, ISO50001
• Usage: Power Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Brand: Ceeg
• Rated Capacity: 6300-420000kVA
• Primary Voltage: 110/121/132/220kv
• Secondary Voltage: 6.3/6.6/10.5/11/35/38.5/63/66/69kv
• Frequency: 50/60Hz
• Impedance: 8%~24%
• Connection Symbol: Ynyn0/Ynd11/D11
• Tapping Range: ±2*2.5%/±8*1.25%
• Transport Package: International Wooden Case or According to Client′s
• Trademark: CEEG
• Origin: Jiangsu, China
• HS Code: 8504349000

Product Description

With over three decades of expertise, China Electric Equipment (Jiangsu) Transformer Manufacture Co., Ltd. (CEEG) stands at the forefront of power transmission and distribution, transforming challenges into smart solutions. Proudly holding 52 patents in oil-filled transformers, we have consistently led the market with our oil-immersed transformers, which have been top sellers for thirty years. Our cutting-edge, in-house high-voltage test station is pivotal for the rigorous testing of our high-performance 220kV and 230kV transformers.

 

In 2023, a significant milestone was achieved with the unveiling of our CNAS-accredited testing center, marking a new era of international quality assurance. This state-of-the-art facility adheres to global standards (ISO/IEC17025), ensuring that all testing data and reports are validated under the prestigious CNAS and ILAC logos. This recognition, honored by over 100 countries, including powerhouses like the USA, UK, Germany, France, the Netherlands, and Japan, underscores our commitment to excellence and precision.


Discover the Exceptional Product Features of Our 110kV Oil Transformer

1. Low Loss: Our advanced design reduces no-load loss by a remarkable 20% and load loss by 5%, surpassing national benchmarks and enhancing energy efficiency.

2. Low Noise: Engineered for tranquility, the natural cooling noise levels are kept under 60dB, significantly quieter by 3 to 5dB than the stringent national standards.

3. Low Partial Discharge: The state-of-the-art dust-free operations maintain partial discharge levels below 100pC, ensuring superior performance and reliability.

4. Short Circuit Resistance: Our transformers have successfully passed rigorous sudden short circuit tests conducted at the National Transformer Testing Center, showcasing their resilience and durability.

5. Leakage-Free: Crafted with precision, all sealing components are of one-piece acrylic construction, undergoing meticulous fluorescence, positive, and negative pressure leak tests for unparalleled reliability.

110kv

SFSZ11 - XXX /XX

S/N	Symbol	Meaning
1	S	Three phases
2	F	Air-cooling
3	S	Three windings
4	Z	On load tap changing
5	11	Symbol of Performance level (11,13)
6	xxx	Rated capacity,kVA
7	xx	Voltage grade of HV winding,kV

 

Presenting the S(F)11/13-110kV 6300-90000kVA Dual Winding Power Transformer

Capacity kVa	Voltage Ratio & Tapping Range			Vector Group	No Load Loss		Load Loss	No Load Current	Impedance
	HV	Tapping Range	LV		11	13
6300	110 115 121	±2X2.5%	6.3 6.6   10.5	YNd11	7.4	5.92	35	0.62	10.5
8000					8.9	7.12	42	0.62
10000					10.5	8.4	50	0.58
12500					12.4	9.92	59	0.58
16000					15.0	12.0	73	0.54
20000					17.6	14.08	88	0.54
25000					20.8	16.64	104	0.5
31500					24.6	19.68	123	0.48
40000					29.4	23.52	148	0.45
50000					35.2	28.16	175	0.42
63000					41.6	33.28	208	0.38
90000					54.4	43.52	272	0.8	12-14

Introducing the SS(F)11/13-110kV 6300-63000kVA Three Winding Power Transformer

Capacity kVa	Voltage Ratio & Tapping Range			Vector Group	No Load Loss		Load Loss	No Load Current	Impedance
	HV	MV	LV		11	13			Stepup	Setdown
6300	110±2X2.5%  115±2X2.5%  121±2X2.5%	36 37 38.5	6.3 6.6 10.5    21	YNyn0 d11	8.9	7.12	44	0.66	HV-MV 17.5-18.5 HV-LV 10.5 MV-LV 6.5	HV-MV 10.5-18.5 HV-LV 18-19 MV-LV 6.5
8000					10.6	8.48	53	0.62
10000					12.6	10.08	62	0.59
12500					14.7	11.76	74	0.56
16000					17.9	14.32	90	0.53
20000					21.1	16.88	106	0.52
25000					24.6	19.68	126	0.48
31500					29.4	23.52	149	0.48
40000					34.8	27.84	179	0.44
50000					41.6	33.28	213	0.41
63000					49.2	39.26	256	0.40

 

Explore the Advanced Features of Our 220kV Oil Transformer

1. No Partial Discharge: Our cutting-edge technology ensures actual measured partial discharge is less than 50pC, achieving levels quieter than the ambient background noise.

 

2. High Efficiency and Low Loss: With innovative core and coil designs and expert leakage magnetic flux control, additional and stray losses are significantly reduced, boosting efficiency.

 

3. Low Noise: Remarkably, the actual measured noise is kept below 60dB, far exceeding national standard expectations for a quieter operation.

 

4. Intelligent Design: Crafted to meet the sophisticated demands of modern intelligent substations, ensuring seamless integration and optimal performance.

 

5. Maintenance-Free Design: Our comprehensive solutions, including air self-cooling, fiberglass dry-type bushings, and robust metal corrugated conservators, make routine maintenance obsolete, perfect for unattended substations.

 

6. Compact Structure Design: Employing the advanced 220kV end inlet method, our transformer boasts a compact design, simplifying transportation and installation on-site.

 

7. Strong Short Circuit Resistance: By adopting international short-circuit mechanical force verification, our assembly procedures ensure each transformer component meets stringent design criteria.

 

8. Over 40-Year Design Life: Utilizing a pioneering high-temperature-resistant hybrid insulation system, our transformers are built to endure, with every component designed for a synchronized lifespan.

 

9. Passes All Routine and Type Tests at Once: Demonstrating exceptional performance, our transformer surpasses advanced domestic standards through comprehensive testing.

220kv

230kv

Testing Process: Our robust testing procedures are meticulously designed to ensure unparalleled reliability and performance, underscoring our commitment to quality and innovation in every step.