Product Description
Oil Immersed Series Transformer:
The S11-M series fully sealed oil immersed power transformer, meticulously crafted by Chaotai Power, redefines excellence with its unparalleled advantages of low loss, whisper-quiet operation, and superior efficiency. This powerhouse not only delivers remarkable energy savings but also minimizes environmental impact. Unlike ordinary oil-immersed transformers, our innovative design eliminates the need for an oil conservator. The transformer’s oil volume adapts effortlessly, thanks to the corrugated sheet’s elasticity, ensuring seamless adjustments. Completely isolated from the air, this transformer safeguards against oil degradation and insulation aging, thereby boosting operational reliability and extending maintenance-free longevity.
1. Power Capacity: 25-2500KVA, 24KV, 30KV, 33KV, 35KV, 36KV, and customizable as per customer requirements 2. Voltage Level: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Off-circuit or On-load
4. Tapping Range: ±5%, 2x2.5%, ±4x2.5%
5. Frequency: 50Hz or 60Hz
6. Phases: Three or single
7. Connection Symbol: Dyn11, Yyn0 (or as requested)
8. Short-circuit Impedance: Standard Impedance
9. Altitude is not exceeding 1000m, ambient temperature not exceeding 40°C. If it can't meet such conditions,
we will modulate parameters in accordance with standard.
Power Capacity: 25-2500KVA
Voltage Options: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV
Voltage Level Options:
Type of Voltage Regulation: Off-circuit or On-load
Tapping Range: ±5%, ±2x2.5%, ±4x2.5%
Frequency Options: 50Hz or 60Hz
Phases Available: Three or single
Connection Symbol Options: Dyn11, Yyn0 (or as requested)
Short-circuit Impedance: Standard Impedance
Operating Conditions: Altitude not exceeding 1000m, ambient temperature not exceeding 40°C
If these conditions cannot be met, parameters will be adjusted to comply with standards.
Engineered by Chaotai Power, the fully sealed oil-immersed power transformer boasts low loss, minimal noise, and unmatched efficiency, achieving exceptional energy conservation and reduced pollution.
Our fully sealed transformer surpasses ordinary models by eliminating the oil conservator. It intelligently adjusts oil volume through the corrugated tank’s elasticity, isolating it from air to combat oil degradation and insulation aging. This enhances operational reliability and reduces the need for maintenance during normal operation.
Product Parameters
| Oil immersed transformer product parameters |
| Rated capacity kVA |
Voltage combination |
NO-load loss W |
Load loss W |
No-load current% |
Short-circuit |
| HV (KV ) |
HV tapping range |
LV (KV) |
Connection symbol |
Impedance |
| 30 |
6.3kV
10.5kV
11kV
13.2kV
13.8kV
15kV |
±2
× 2.5%;
Or ±5% |
0.4 |
Dyn11 or Yyn0 |
90 |
660 |
2.1 |
5.5 |
| 50 |
130 |
960 |
2 |
| 63 |
150 |
1145 |
1.9 |
| 80 |
180 |
1370 |
1.8 |
| 100 |
200 |
1650 |
1.6 |
| 125 |
240 |
1980 |
1.5 |
| 160 |
290 |
2420 |
1.4 |
| 200 |
330 |
2860 |
1.3 |
| 250 |
400 |
3350 |
1.2 |
| 315 |
480 |
4010 |
1.1 |
| 400 |
570 |
4730 |
1 |
| 500 |
680 |
5660 |
1 |
| 630 |
810 |
6820 |
0.9 |
6 |
| 800 |
980 |
8250 |
0.8 |
| 1000 |
1150 |
11300 |
0.7 |
| 1250 |
1350 |
13200 |
0.7 |
| 1600 |
1630 |
15950 |
0.6 |
| 2000 |
1950 |
19140 |
0.6 |
| 2500 |
2340 |
22200 |
0.6 |
Main product
Company Profile
Zhejiang ChaoTai Complete Equipment Co., Ltd. stands as a beacon of innovation in the realm of electrical integration. As a high-tech enterprise, we proudly boast a seasoned R&D, production, and service team with a remarkable tenure of over 15 years in the industry. Our commitment to excellence and cutting-edge solutions positions us as pioneers in our field.
Our diverse product lineup features high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, sophisticated gas-insulated switchgear, and robust substations. These advanced solutions are indispensable across a multitude of sectors, including energy, chemical industries, metal smelting, power grids, industrial manufacturing, academic institutions, medical and pharmaceutical arenas, municipal commerce, water conservancy and hydropower, road traffic, and both commercial and residential landscapes.
Driven by an unwavering commitment to technological innovation and our 'smart manufacturing' philosophy, we continually invite top-tier technical experts to bolster our core competencies. This dedication ensures we deliver unparalleled value to our customers while aspiring to forge the preeminent brand in the industry. From our humble beginnings to our current stature of excellence, Zhejiang ChaoTai has been on an upward trajectory, consistently embracing innovation and adopting a dynamic business strategy that emphasizes quality, reputation, and efficiency. Our ethos, 'technology as the guide, standardized management, excellent quality, and customer satisfaction,' propels us toward enhanced market competitiveness, serving the power distribution sphere with ever-greater ambitions. At the heart of our mission lies integrity, quality supremacy, unparalleled service, and enduring customer satisfaction. Our relentless pursuit of excellence, innovation, and brand reliability is steadfast, powered by our clients' trust and support. We are deeply grateful to our valued customers for their unwavering loyalty and eagerly anticipate collaborating with you, through Senhang Technology, to forge a brighter tomorrow.
Our Advantages
Certifications
After Sales Service
FAQ
Q1. Are you a factory or trading company?
A.We are a factory.
Q2. Where is your factory located? How can I visit there?
A. Our factory is located in Wenzhou City, Zhejiang Province, China. You can fly to Longwan airport directly. All our clients,from home or abroad, are warmly welcome to visit us!
Q3. What's the payment term?
A. We accept TT. 30% deposit and 70% before shipment, Western Union, L/C At Sight is ok! We'll l show you the photos of the products and packages before you pay the balance.
Q4. Tell me the standard of package? What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons, If vou have leaallyl registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q5. Would you accept to use our logo?
A. If you have good quantity,it absolute no problem to do OEM.
Q6. How about the transport?
A. If the number of aoods is small we usually use TNT.DHL.FEDEX.EMS and some express voull offered. If the number of the goods is big usually we use the FWD you offered or we provided. Either by sea or by air is OK.
Q7. What is your Production lead time /delivery time?
A: Generally, it will take 25 to 30 days after receivina vour advance payment.
The specificl delivery time depends on the items and the quantity of your order. Silicone rubber's reqular product is 1,000/ week, Porcelain's need 2-3 weeks about 1000 pcs.
Q8. How do you make our business long-term and good relationship?
A:l. We keep aood auality and competitive price to ensure our customers benefit:
A: 2. We respect every customer as our friend and we sincerely do business and make friendsl with them, no matter where they come from.
A: 3.Most goods we have the type report according the IEC STANDARD
Q9. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the courier cost.
Q10. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q11. What is your terms of delivery?
A: EXW, FOB, CFR, CIF.
Q12.What certificates do you have?
A:ISO9001,OHSAS18001,ISO14001 certificate and Type test report of product.
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