Product Description
Oil Immersed Series Transformer:
The S11-M series, a fully sealed oil-immersed power transformer from Chaotai Power, is engineered for excellence with remarkable attributes. It stands out with its low loss, minimal noise, and exceptional efficiency, ensuring a top-tier energy-saving performance while curbing pollution. Unlike traditional oil-immersed transformers, our fully sealed variant eliminates the need for an oil conservator. Its ingenious design automatically adjusts and compensates for oil volume changes using the corrugated oil tank's flexible sheet, maintaining isolation from the air. This feature not only slows oil deterioration and insulation aging but also boosts operational reliability, effectively minimizing maintenance requirements during normal operations.
1. Power Capacity: 25-2500KVA, with options for 24KV, 30KV, 33KV, 35KV, 36KV, and customized specifications per customer requirements. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV.
4. Tapping Range: Versatile options including ±5%, 2x2.5%, and ±4x2.5% for precise voltage control.
5. Frequency: Reliable operation at either 50Hz or 60Hz.
6. Phases: Available in both three-phase and single-phase configurations to suit your needs.
7. Connection Symbol: Configurable with Dyn11, Yyn0, or tailored as per request.
8. Short-Circuit Impedance: Adheres to Standard Impedance specifications.
9. Altitude: Engineered for altitudes not exceeding 1000 meters, with ambient temperatures maintained below 40°C.
If environmental conditions challenge these standards, parameter adjustments are performed in accordance with specifications.
Power Capacity: Ranging from 25 to 2500KVA for diverse applications.
Options available include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV for comprehensive voltage coverage.
Voltage Level:
Type of Voltage Regulation: Choose between Off-circuit or On-load according to your requirements.
Tapping Range: Provides flexibility with ±5%, ±2x2.5%, and ±4x2.5% settings.
Frequency: Dual capability with both 50Hz and 60Hz options.
Phases: Three-phase or single-phase options available to fit various applications.
Connection Symbol: Configurable with options including Dyn11 and Yyn0, or customized as needed.
Short-Circuit Impedance: Compliant with Standard Impedance guidelines.
Altitude: Effective operation up to altitudes of 1000m, with ambient temperatures not exceeding 40°C.
Should conditions exceed standard limits, parameter modulation is applied to ensure optimal performance.
The fully sealed oil-immersed power transformer from Chaotai Power is distinguished by its low loss, low noise, and high efficiency. It offers a superior energy-saving effect while reducing environmental impact.
In comparison to conventional oil-immersed transformers, the fully sealed variant eliminates the oil conservator, with oil volume changes automatically adjusted by the corrugated tank's flexible sheet. This isolation from air helps prevent oil degradation and insulation aging, enhancing operational reliability and reducing maintenance needs in standard operations.
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 at the forefront of high-tech innovation in the electrical integration sector. With a seasoned team boasting over 15 years of industry expertise, we excel in R&D, production, and exceptional service delivery.
Our extensive product portfolio includes cutting-edge high-voltage solid-state soft starters, advanced capacitor cabinets, versatile high and low voltage switchgear, sophisticated gas-insulated switchgear, and state-of-the-art substations. These products cater to a myriad of sectors, ranging from energy, chemical industries, and metal smelting, to electric power grids, industrial manufacturing, and academia. Our innovations also serve the medical and pharmaceutical industries, municipal commerce, water conservancy, hydropower, road traffic, and both commercial and residential landscapes.
Dedicated to technological advancement and the 'smart manufacturing' ethos, we are committed to fostering top-tier talent to elevate our core competencies. Our mission is to provide unparalleled value to our customers and position ourselves as the industry's leading brand. From our inception, we've transformed from a fledgling venture into a paragon of excellence. Our strategy hinges on relentless innovation, quality-driven survival, market-centric growth, reputation-based development, and efficiency through streamlined management. We pledge to uphold 'technology-driven, standardized management, impeccable quality, and customer satisfaction' as the pillars of our quality and talent management systems. Our goal is to enhance market competitiveness and deliver exceptional service across China's electric power and grid domains with unmatched speed and strength. Integrity, quality, service, and customer satisfaction remain our guiding principles. We are committed to achieving excellence, fostering continuous innovation, and establishing a brand synonymous with trust. Your trust fuels our journey. We extend heartfelt gratitude to all our esteemed clients for their unwavering support and look forward to collaboratively shaping a brighter tomorrow with Senhang Technology.
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}