Product Description
Oil Immersed Series Transformer:
The S11-M series fully sealed oil-immersed power transformers by Chaotai Power are designed to be at the forefront of energy efficiency, with remarkable features such as low loss and quiet operation. These transformers excel at conserving energy and minimizing environmental pollution. Unlike conventional oil-immersed transformers, these fully sealed models eliminate the need for an oil conservator. They cleverly utilize the flexibility of the corrugated oil tank sheets to automatically adjust and compensate for changes in oil volume. By being completely sealed from the surrounding air, these transformers significantly retard the deterioration of oil and the aging of the insulation, thereby enhancing operational reliability and eliminating the need for maintenance under normal conditions.
1. Power Capacity: Ranging from 25KVA to an impressive 2500KVA, with voltage capabilities of 24KV, 30KV, 33KV, 35KV, 36KV, and customizable according to customer requirements. 2. Voltage Level: Options available include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Choose from off-circuit or on-load options.
4. Tapping Range: Versatile adjustments including ±5%, ±2x2.5%, and ±4x2.5% are available to suit specific needs.
5. Frequency: Compatible with both 50Hz and 60Hz systems.
6. Phases: Available in both three-phase or single-phase configurations.
7. Connection Symbol: Choose from Dyn11, Yyn0, or customize as per your specifications.
8. Short-circuit Impedance: Designed to meet standard impedance levels for optimal performance.
9. Altitude: Designed for locations up to 1000m above sea level, with an ambient temperature not exceeding 40°C. For conditions beyond these parameters, we offer customized solutions to meet your needs.
Our transformers are designed to be modulated in accordance with standard requirements should your site conditions exceed normal parameters.
Power Capacity: Spanning a range from 25KVA to 2500KVA, ensuring versatile power output to meet diverse requirements.
Voltage Levels: Configurable options from 10KV to 36KV, including 10KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV.
Voltage Level: Tailor your selection from an array of voltage levels to perfectly match your electrical needs.
Type of Voltage Regulation: Flexible choices between off-circuit or on-load regulation to suit your specific application.
Tapping Range: Offers ±5% adjustments along with ±2x2.5% and ±4x2.5% for precise voltage control.
Frequency: Adaptive to either 50Hz or 60Hz frequency systems, ensuring broad compatibility.
Phases: Customizable to either three-phase or single-phase to meet your power distribution needs.
Connection Symbol: Options include Dyn11, Yyn0, or tailored to specific requirements.
Short-circuit Impedance: Built to adhere to standard impedance requirements, ensuring reliability and efficiency.
Altitude and Temperature: Suitable for altitudes not exceeding 1000m, with ambient temperatures up to 40°C.
Should operating conditions exceed standard parameters, parameters will be adjusted to ensure compliance with relevant standards.
Chaotai Power's fully sealed oil-immersed power transformers boast exceptional features including low loss, minimal noise production, and superior efficiency. These transformers are an ideal choice for achieving outstanding energy savings and minimizing pollution.
In comparison to standard oil-immersed transformers, the fully sealed models from Chaotai Power eliminate the need for an oil conservator. By utilizing the elasticity of the corrugated oil tank sheet, they automatically adjust to changes in oil volume. This innovative design ensures that the transformer is isolated from the air, thereby significantly reducing the rate of oil deterioration and insulation aging. This enhances the reliability of the operation and negates the need for maintenance during regular use.
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 pinnacle of innovation in the realm of electrical integration. As a high-tech enterprise, we boast an exceptional team dedicated to research and development, production, and unparalleled service, drawing upon over 15 years of rich industry experience.
Our extensive product line features high-voltage solid-state soft starters, capacitor cabinets, and an array of high and low voltage switchgear, including cutting-edge gas-insulated options. Our substations and equipment serve an expansive range of sectors including energy and chemical industries, metal smelting, and electric power grids. Our reach extends to industrial manufacturing, esteemed universities, research institutions, as well as the medical and pharmaceutical sectors. We play a vital role in municipal commerce, water conservancy, and hydropower, along with road traffic infrastructure, plus both commercial and residential environments, underscoring our versatility and reliability.
Guided by our commitment to technological innovation and the philosophy of 'smart manufacturing,' we actively recruit top-tier technical talent to fortify our core competencies. Our mission is to deliver unparalleled value to our clients as we strive to establish ourselves as the industry's leading brand. Since our inception, we've charted a course from inception to excellence, championing a culture of innovation and adhering to a business model that emphasizes quality as the foundation of survival. We are market-driven, reputation-focused, and efficiency-oriented, all underpinned by meticulous management. Our pledge is centered around guiding technology, standardized management, and superior quality, all aimed at achieving ultimate customer satisfaction. We endeavor to bolster our market standing and serve China’s electric power and grid sectors with unmatched speed, strength, and ambition. Integrity, quality, and supreme service define us, as do our commitments to customer satisfaction. Our pursuit of excellence, relentless innovation, and unwavering integrity fuels our passion for building a brand you can trust. Your recognition propels us forward, and we express heartfelt gratitude to all our customers for their ongoing support and trust. Senhang Technology eagerly anticipates forging a collaborative future, hand in hand, creating 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.
Audited Supplier 
){kind=link}