15KVA isolation transformer 3 phase step down

15KVA isolation transformer 3 phase step down

Reasonably priced 15KVA isolation transformer for sale.

This 3 phase isolation transformer with a total power of 10KVA is a dry type transformer whose main function is to step down or step up, which can step down the voltage to the usable range for output.

For example, step down 480V to 240V, step down 480V to 208V, and step down 380V to 220/200V.

High quality 15KVA transformers are manufactured and supplied by Shuogong Power, a leading transformer company in China.

Its total power is 15KVA, which can meet the voltage requirements of various equipments.

As a company with more than 15 years of experience in transformer manufacturing, Shuogong Power can customize various types of transformers for you.

Whether you need a single phase 15KVA transformer or a 3 phase 15KVA transformer, we can 100% meet your needs, we can also provide 15kVA isolation transformers with the certificate of origin and manufacturer issued by the Chamber of Commerce in the country where the exporter/manufacturer is located Issued quality certificate.


Three phase
Input voltage
220V 380V 400V 415V 440V 480V 660V  or Customized
Output voltage
660V 480V 440V 415V 380V 220V or Customized
Output voltage accuracy
Voltage change rate
Output waveform distortion
No distortion (compared to the input waveform)
Insulation class
Class F, Class H; IP 00, IP30 etc.
Working efficiency
Applicable frequency
Dielectric strength
Connection method
Yyn0  DYn11 or Customized
Overload capability
More than 1.2 times of the rated load to work for 4 hours
Sound level
≤50dB(within 1m)
Temperature rise
Insulation resistance
Working environment
Temperature: -20℃~+45℃, Humidity: ≤95% RH no condense
Installation environment
Non-corrosive gas and conductive dust
Cooling method
Dry type air cooling


Transformer can only convert voltage and CANNOT convert frequency.
Transformer CANNOT convert single phase voltage to 3 phase voltage.
Input/output voltage, power rating and whether with shell of all transformers, can be customized according to clients’ requirements.

15KVA 3 phase isolation transformer price:

The retail price of a 15KVA three-phase transformer on the market is usually $3000-3500.

Here you will get exclusive deals from transformer manufacturers.

Contact us today for a discounted price on your 15KVA three phase isolation transformer.

The following is the price of 15KVA 3 phase isolation transformer currently on the market, which is for your reference only.

Items Price  Capacity source
15kVA 3 phase isolation transformer price $3203.97 480V to 240V Ato
15kVA 3 phase isolation transformer price $2787.11 480V to 208V Amazon
15kVA three phase isolation transformer price $2899.12 380V to 220V Ebay

15 kVA Isolation Transformer Features:

  • To step down/up the 3 phase voltage 380V to 200V/220V.
  • Primary and secondary windings are separated by aluminium/copper shield.
  • Available in the circuit of AC 50Hz/60Hz.
  • Better protection, high quality workmanship.
  • better security.
  • Affordable price

three phase isolation transformer working principle

Three phase isolation Transformer mainly applies electromagnetic induction principle to work, the working principle details are as follows: When the primary side of the isolation transformer is applied with the alternating voltage U1 and the current flowing through the primary winding is I1, then the current will generate alternating magnetic flux in the iron core to generate electromagnetic connections between the primary winding and the secondary winding.

According to the electromagnetic induction principle, electromotive force will be induced when the alternating magnetic flux goes through these two windings. The magnitude of electromotive force is proportional to the winding turns and the maximum main flux, the voltage of more winding turns is high and the voltage of less winding turns is low. When the secondary side of the transformer opens circuit, that is to say when the transformer is no-load, the primary and secondary end voltage is proportional to the number of the primary and secondary winding turns, that is U1/U2 = N1/N2, but the primary and secondary frequency stays the same to realize the change of voltage.


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