Product Description
Oil Immersed Series Transformer:
The S11-M series, a cutting-edge fully sealed oil immersed power transformer, proudly developed by Chaotai Power, offers a multitude of benefits. Featuring low loss, minimal noise, and outstanding efficiency, this transformer is engineered to deliver remarkable energy savings and mitigate environmental impact. Unlike conventional oil immersed transformers, this innovative design eliminates the need for an oil conservator by employing a corrugated oil tank with elastic compensation for oil volume changes. This isolated construction not only protects against oil deterioration and insulation aging but also significantly boosts operational reliability and eliminates the need for maintenance under normal operation.
1. Power Capacity: A versatile range from 25 to 2500KVA, accommodating 24KV, 30KV, 33KV, 35KV, 36KV, and customizable options as per customer requirements. 2. Voltage Level: Options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, ensuring a perfect fit for diverse applications. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load regulation to suit your operational needs.
4. Tapping Range: Provides precision with options of ±5%, ±2x2.5%, and ±4x2.5%, ensuring optimal adaptability to varying load demands.
5. Frequency: Compatible with both 50Hz and 60Hz systems, catering to global standards.
6. Phases: Available in both Three-phase and Single-phase configurations to meet diverse application requirements.
7. Connection Symbol: Standard options like Dyn11, Yyn0 are available, with customization on request for tailored solutions.
8. Short-circuit Impedance: Crafted with Standard Impedance, ensuring reliability and safety during operation.
Altitude suitability: Designed for altitudes not exceeding 1000m and ambient temperatures not exceeding 40°C. For conditions beyond these, we expertly adjust parameters to meet standards.
Rest assured, compliance with standards is maintained through expert parameter adjustments.
Power Capacity: Ranges from 25 to 2500KVA, offering flexibility for various power requirements.
Voltage Options: From 10KV to 36KV, including intermediary levels, fulfilling a wide array of voltage demands efficiently.
Voltage Level:
Voltage Regulation Type: Flexible options of Off-circuit or On-load to match specific operational preferences.
Tapping Range: Precision adjustments with ±5%, ±2x2.5%, and ±4x2.5% to accommodate diverse electrical load conditions.
Frequency: Compatible with both 50Hz and 60Hz, adhering to international electrical standards.
Phases: Available in Three-phase or Single-phase, ensuring broad applicability and flexibility.
Connection Symbol: Standard configurations like Dyn11, Yyn0 are offered, with options for customization.
Short-circuit Impedance: Designed with Standard Impedance for dependable and safe performance.
Altitude and Temperature: Effective up to 1000m altitude and ambient temperatures up to 40°C, with parameter adjustments for standard compliance if these limits are exceeded.
We ensure all conditions are met through precise modulation of parameters according to standard guidelines.
Chaotai Power's fully sealed oil immersed transformers are engineered for excellence, offering the advantages of low loss, minimal noise, and exceptional efficiency, delivering significant energy savings and pollution reduction.
Standing out from traditional oil immersed transformers, the fully sealed variant eliminates the oil conservator. It uses a corrugated oil tank to automatically adjust and compensate for oil volume changes through elastic adaptability. This design isolates the transformer from air exposure, thereby slowing down oil deterioration and insulation aging, enhancing reliability, and eliminating the need for regular maintenance under typical operating conditions.
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
Welcome to Zhejiang ChaoTai Complete Equipment Co., Ltd., a beacon of innovation in the realm of electrical integration. As a pioneering high-tech enterprise, we boast a formidable R&D, production, and service team, underpinned by an impressive 15 years of industry acumen.
Our product portfolio is as diverse as it is advanced, encompassing high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and robust substations. These cutting-edge solutions find their applications across a plethora of sectors, including but not limited to the energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, and prestigious academic institutions. Moreover, our innovations extend into the medical and pharmaceutical domains, municipal commerce, water conservancy and hydropower projects, as well as the ever-evolving road traffic infrastructures. Our products are also integral to both commercial and residential landscapes.
Embracing the philosophy of 'smart manufacturing,' we at Zhejiang ChaoTai steadfastly maintain a commitment to technological innovation. By attracting elite technical talent, we continually augment our core competencies, delivering unparalleled value to our clientele. Our unwavering ambition is to establish the preeminent brand within our industry. From humble beginnings, we have ascended to new heights, guided by a modern business ethos that emphasizes quality, market orientation, and sterling reputation. Our management principles focus on efficiency and quality, driven by an unyielding dedication to 'technology as the guide.' We are resolute in our mission to bolster China's electric power and grid sectors with unmatched speed and excellence. Integrity forms the backbone of our operations, with quality and service held in the highest regard. Our perpetual pursuit of customer satisfaction fuels our ceaseless quest for excellence and innovation, nurturing a brand that earns trust and admiration. Gratitude is extended to our valued clientele, whose support propels us forward. We, at Senhang Technology, warmly invite you to join us in forging a future rich with promise and potential.
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}