400 kva transformer ultimate purchasing guide

400 kva transformers is one of the most common capacity that shall up on industrial and residential electricity.

Conso electrical science and technology co., Ltd is one of the manufacturer to provide customized service on designing 400 kva transformers. Conso electrical has a professional engineering team that could provide a suitable solution according to the working environment such as desert areas, High altitude areas, and severe cold areas. 

What is the meaning of a 400 kva transformer?

The 400 kva transformer is a transformer that could provide 400 kva power totally. 400 kva is the apparent power. It includes the active power and the reactive power, of which the unit is kW and kVar, respectively.

What is the type of a 400 kva transformer has?

400 kva transformers normally is used as distribution transformers. Commonly, 400 kva transformers distribute and transmit electricity to commercial, industrial, and residential equipment.   

Conso electrical has mainly produced 400 kva oil immersed transformers, 400 kva cast resin dry type transformers, 400 kva pad mounted transformers, and 400 kva compact transformer substations since 2006. 

How much power a 400 kva transformer can support ?

Since it has a phase difference between current and voltage in the AC circuit, the 400 kva power can not use on energy conversion completely. In most of countries, the power factor should be greater than 0.9. thus, a 400 kva transformer could support at least 360 kW active power under the 100% loading rate.

However, a distribution transformer cannot be 100% loaded during all the service life, otherwise, the actual usage life will be lower than the designed. In the long term basis, 50% to 80% loading rate is more suitable for running, and the energy consumption would be in an ideal range. In this case, it is comfortable to a 400 kva transformer that support 180 kW to 288 kW active power in daily running.

The weight and the dimension of a 400 kva transformer.

400 kva transformer is customized. The weight and dimension will be variable by the different designing. However, the approximate weight and dimension could be like as follows:

How do I select a suitable 400 kva transformer?

To select a suitable 400 kva transformer, it is necessary to know the characteristics among different types of 400 kva transformers.

1.The 400 kva oil immersed transformer could be either pole mounted or pad mounted. It also has a low noise level ( lower than 55 dB). meanwhile, the 400 kva oil immersed transformer could be running outdoor or indoor environment.

2.The 400 kva cast resin transformer does not need to refresh the liquid insulation material. It has a lower maintenance costs, stable performance, and environment friendly. However, 400 kva cast resin transformer is designed as indoor environment conditions in most of case, since the protection level is IP00.

3.The 400 kva pad mounted transformer is also called as 400 kva combined transformer, because the 400 kva pad mounted transformer combined the transformer body with control unit on the both side of primary and secondary. Evermore, it also could equip capacity bank unit as the requirement from clients

To select a suitable 400 kva transformer, the following product specification is also necessary to know from clients:

1.400 kva oil immersed transformer:

1)Voltage ratio;

2)Vector group;

3)Rated frequency;

4)Winding material;

5)Loading loss and no loading loss;

6)Temperature rise;

7)Tapping method.

2.400 kva cast resin transformer:

1)Voltage ratio;

2)Winding material;

3)Loading loss and no loading loss;

4)Noise level;

5)Heat resistance grade.

3.400 kva pad mounted transformer:

The product specification is same as the 400 kva oil transformer. However, the necessary information need to be informed if clients has the requirement on control unit and capacity bank unit.  

Customized 400 kva transformers for sale

Normally, a 400 kva transformer costs about $4400 to $15000. However, the price is variable as the different technical requirement and the current price of raw materials. Take a 10/0.4 kv three phase copper 400 kva transformer as an example:

1. A 400 kva oil immersed transformer might costs about $ 5000;

2. A 400 kva dry type transformer might costs about $ 5800;

3. A 400 kva pad mounted transformer might costs about $9000.

Conso electrical science and technology co., ltd is one of the manufacture to produce customized 400 kva transformers in China. The factory is headquartered in Yueqing City Zhejiang Province. Conso Electrical produce and sell brand new 400 kva transformers. Meanwhile, the voltage ratio is different among countries. That is why conso electrical will not keep storage for 400 kva distribution transformers or other type distribution transformers.

Currently, Conso Electrical could produce more than 100 sets of 10 kv 400 kva oil immersed distribution transformer or 50 sets of 10 kv 400 kva cast resin transformer within about 30 days. Each of 400 kva transformers will have a series of factory test until it meet to the client requirements.

Related Product