Surplus 15000 kva transformer for sale!

You will see the transformers on the streets, hotels, residential areas, airports...etc. Yes, our work and life are inseparable from electricity, and electricity is inseparable from transformers. Daelim’s surplus 15000 kVA transformer is for sale now!

Daelim Transformer a transformer supplier in China has over 20 years of electrical equipment export experience, targeting to be the top three transformer manufacturer in the world. A concept that has allowed us to deliver multiple standards, cutting-edge service /speed, and expert-level customization skills to our clients.

15000 kVA Transformers

Daelim Transformer can manufacture and supply 15,000 kVA Power Transformers and Substation Transformers. The voltage range for the 15 MVA Substation Transformer is from 15 kV up to 44 kV, while the 15 MVA Power Transformer can reach up to 230 kV. Cooling methods available include ONAN, ONAF, ONKN, and ONKF for your selection.

We are a dependable supplier of transformers for governments, bitcoin mining farms, power companies, as well as commercial and industrial sectors.

Learn more:10.5MVA-13.8/2.4kV Substation Transformer 

 Quick Lead Time of 15000 kVA  Transformers

Daelim Transformer always focuses on quick lead time. Based on different quantities, the lead time is from 2 months to 4 months or more.

Our factory is also nearby Shanghai port, it is convenient to send the transformers to customer.

UL/ANSI/IEEE/CSA Standard

Daelim Transformer entered the North American market 6 years ago, our engineer team and technical team are very familiar with ANSI/IEEE standards & CSA standards, and our design of a 15 MVA transformer is strictly based on these local standards.

Our goal is to take distributors, agents, and contractors as our clients. We want to make it as easy as possible for them to be able to work with us.

For example, we really understand how UL certificate is important in the USA market, Daelim Transformer is a UL listed manufacturer. Therefore, the transformers we send to the US will have the UL mark.

Transformer quality control and other certificates.

Read more: Electric Power Substation Transformers

15000kva Transformer Production Process

The production process of a 15000kVA transformer has five parts:

First, the transformer needs to be designed before it is made. When confirming the transformer design, we need to pay attention to the two aspects, one aspect is winding, and another is insulation.

Second, winding. This means setting the number of turns and the thickness of the copper wire according to the technical parameters and winding it on the skeleton and using the wire to separate the primary and secondary poles.

As follows is the general worker's winding method :

When the cylindrical winding end is made of paper strips, the insulation effect has been achieved at this time, we use straight grain tape to tie it to the first turn of the wire, start winding the first turn, and then place four tension cloths around the circumference while winding the edge belt (compression belt).

The end insulation is bound in a figure-8 shape.

Tighten the tape to tie the first turn and the end insulation together, turn the tension tape upside down when winding the second turn, and press it to the bottom when winding the third turn so that the end ring is tightened in a zigzag fashion.

In the end, the two early ends should be aligned, the first and the penultimate turn should also be separated by cardboard, and the two early ends should be tied tightly. Tie the entire coil with compression tape before cutting the wire.

Third, insert.

The coil that is about to be wound by the insert is formed by inserting an E-shaped or oblique F-shaped silicon steel sheet.

Fourth, dipping paint.

The purpose of dipping in thick insulating paint is to drive out the moisture contained in the insulating material and fill all the space air gaps with insulating paint, which can not only improve the insulation strength and moisture-proof performance of the winding but also improve the heat resistance of the winding. It can also improve the mechanical properties, chemical stability, thermal conductivity, and heat dissipation effect of winding insulation, and can delay aging.

Fifth, drying. 

Put the transformers into the oven to dry.

Basically, the transformer is made like the above process.

FR3 Vegetable Oil & Copper Accessories

15000 kVA Transformer is a customization product, Daelim Transformer has good customization skills to satisfy customers’ requirements.

We have the choice for both Type I and Type II mineral oil and vegetable oil for reputed manufacturer Cargill. To know more information about the difference between mineral oil and vegetable oil, pls check our article:The complete guide to Transformer Oil

Besides, we also use accessories of Bushing well, Bushing Insert, Bay-O-Net fuse assembly, ELSP current-limiting backup fuse, Four Positions Loadbreak Switch for Loop Feed from EATON Copper brand. 

In order to match the best suitable accessories for our 15000 kVA transformer, Daelim even flies to America, our purpose is to make the quality goods.

Choose EATON Cooper to be our supplier, also is convenient for customers to replace the accessories.

Get it now: What influences a high voltage transformer price？

Professional Engineer Team & Technical Team

For all of our team members and the legacy of who we are, our ultimate calling is to treat each other with respect, care, acceptance, understanding, and dignity.

Every day, our responsibility is to strive to do what is right in our transformer's business.

After-sales Service In North America

Only manufacturer export transformers can understand how important to their customers to establish their own after-sales center.

Daelim built the after-sales service system three years ago and has the local support in North America, to help our customers install, repair the transformers...etc.

FAT Testing

Daelim commits to exporting qualified products to customers. Since its establishment, Daelim has consistently adhered to this code of conduct. We assure that all transformers exported by Daelim Belefic undergo thorough factory testing and meet the required standards.

After completing the production processes, we follow stringent quality standards and conduct factory testing to ensure everything complies with specifications. The content of the 15,000 kVA transformer Factory Acceptance Test (FAT) includes at least:

A. The ratio of each connection

B. Angular displacement

C. No-load loss at 105% of rated voltage

D. Exciting current at 105% of rated voltage

E. Load losses and impedance at rated current, on the rated voltage connection, corrected to 85°C. This test is performed on the high voltage connection with the highest measured value.

F. Applied voltage

G. Induced voltage

H. Transformer tank leak detection test

These measures guarantee the quality and reliability of our transformers for our valued customers.

Read more: How to test a power transformer?

Customers Say

Through a combination of years of hard work and experience, Daelim has been able to bring you the DAELIM BELEFIC brand you see today that clients across 6 continents have grown to benefit from. Our cooperation with our clients goes back years and what keeps them coming back is the relationships and trust we’ve built with them. 

Are you interested in what our customers say? What Daelim Transformer does for clients is special, and we want to share this with you.

Mike Trembley, President of a Canadian company, emphasized the importance of quality standards: "With over 20 years of engineering experience, quality standards are paramount for our company. Daelim Transformer's adherence to CSA standards aligns well with our needs, and we look forward to developing more projects together."

Dave Johnson, a customer from the USA, praised Daelim Transformer's responsiveness and professionalism in handling their project for bitcoin mining: "Daelim provided us with quick and accurate replies. Their communication and professional engineering team have enabled us to expand our business with them. I highly recommend Daelim Transformers for cryptocurrency mining projects."

Terry Wang, a bitcoin mining site owner from China, expressed gratitude for Daelim Transformer's support during a challenging relocation: "When my bitcoin mines in China faced a ban and I had to move them to the USA, I was concerned about meeting local standards and requirements. Fortunately, Daelim Transformer's professional technical service ensured that my bitcoin site station operates flawlessly in the USA. Thank you, Daelim!"

Daelim Transformer has a professional transformer technical team, which can provide you with the best professional solutions for your project.