Product Description
Oil Immersed Series Transformer:
The S11-M series of fully sealed oil immersed power transformers, expertly developed and produced by Chaotai Power, are designed to offer exceptional low loss, minimal noise, and superior efficiency. These transformers achieve impressive energy-saving results while significantly curbing pollution. Unlike conventional oil immersed transformers, this cutting-edge fully sealed model eliminates the need for an oil conservator. The transformer seamlessly adjusts to oil volume changes through the innovative elasticity of its corrugated oil tank, ensuring the system remains isolated from the air. This isolation not only prevents and decelerates the degradation of oil and insulation aging but also enhances operational reliability, effectively eliminating the need for maintenance during normal operations.
1. Power Capacity: Ranging from 25-2500KVA, with voltage options of 24KV, 30KV, 33KV, 35KV, 36KV, and customizable as per customer requirements
4. Tapping Range: Configurable at ±5%, 2x2.5%, ±4x2.5%
5. Frequency: Available in both 50Hz and 60Hz options
6. Phases: Choice of Three-phase or Single-phase configurations
7. Connection Symbol: Options include Dyn11, Yyn0, or customized upon request
8. Short-circuit Impedance: Adheres to Standard Impedance specifications
9. Operating Conditions: Ideal for altitudes up to 1000m with ambient temperatures not exceeding 40°C. If these conditions cannot be met, we offer parameter adjustments in accordance with standard protocols.
Parameters will be modulated in accordance with standards if conditions are unmet.
Power Capacity: From 25 to 2500KVA
Voltage Range Options: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV
Voltage Level Options:
Type of Voltage Regulation: Choose from Off-circuit or On-load options
Tapping Range: Configurable to ±5%, 2x2.5%, or ±4x2.5%
Frequency: Offered in both 50Hz and 60Hz
Phases: Available in either Three-phase or Single-phase
Connection Symbol: Dyn11, Yyn0, or tailored upon request
Short-circuit Impedance: Complies with Standard Impedance
Operating Environment: Suitable for altitudes not exceeding 1000m and ambient temperatures up to 40°C
Should conditions differ, parameters will be adjusted to meet standard compliance.
The fully sealed oil immersed power transformer by Chaotai Power boasts low loss, minimal noise, and high efficiency, delivering excellent energy-saving capabilities and reducing environmental impact.
In contrast to standard oil immersed transformers, our fully sealed design eliminates the oil conservator. It automatically adjusts to oil volume fluctuations via resilient corrugated oil tank sheets, ensuring isolation from air to prevent oil degradation and insulation aging. This advancement boosts operational reliability, eliminating maintenance needs during 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 as a beacon of innovation in the realm of electrical integration. As a distinguished high-tech enterprise, we pride ourselves on our expert R&D, production, and service teams, boasting over 15 years of esteemed industry experience. Our commitment to excellence drives us to push boundaries and deliver cutting-edge solutions tailored to modern-day demands.
Our premier product range encompasses high-voltage solid-state soft starters, advanced capacitor cabinets, versatile high and low voltage switchgear, robust gas-insulated switchgear, and essential substations. These products have found extensive applications across a multitude of industries, including energy and chemical sectors, metal smelting, electrical power grids, industrial manufacturing, and academic research. We further extend our expertise to medical and pharmaceutical fields, municipal commerce, water conservation and hydropower, road infrastructure, and even commercial and residential developments, underlining our versatility and expansive reach.
At the heart of our operations lies a steadfast commitment to technological innovation and the ethos of 'smart manufacturing.' We place immense value on attracting high-caliber technical talent to fortify our core competitive edge, ensuring we offer unparalleled services while forging a premier brand in the industry. Since our inception, we've charted an inspiring trajectory from humble beginnings to industry excellence. Our guiding principles are innovation, quality-driven survival, reputation-led growth, and management-induced efficiency. We are passionately devoted to quality, underpinned by technology, standardized management, and a relentless pursuit of customer satisfaction, enhancing our market position in the electric power and grid sectors with ambitious, forward-thinking objectives. With integrity as our cornerstone, quality our priority, and service our hallmark, customer satisfaction remains our perpetual mission. We relentlessly pursue excellence and continuous innovation, aspiring to construct a brand that earns unwavering trust. Your recognition propels us forward. We extend heartfelt gratitude to both our longstanding and new clients for their enduring support and trust. Senhang Technology eagerly anticipates forging a collaborative path to a promising future together.
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}