50 kva transformer ultimate purchasing guide

A transformer is a device to switch the voltage and the current from the input side to the output side through independent coils and a shared core. It also could isolate electrical equipment between input and output circuit to support the safety to operators. A 50 kva transformer is one of the standard capacity rating in three phase AC power gird system.

Conso electrical science and technology Co., Ltd is a professional manufacturer to produce 10 kV to 35 kV distribution transformer, compact substation and vacuum circuit breaker. Conso Electrical has the experience to manufacture and export 35kv solar substation to Samoa, 10 kv compact substations to Chad, and 35 kv distribution transformer to Cameroon.

The types of a 50 kva transformer

In Conso Electrical, the factory could produce 50 kva single phase transformers, 50 kva three phase transformers, 50 kva oil immersed transformers, 50 kva cast resin dry type transformers and 50 kva pad mounted transformers.

The 50 kva transformer widely use on residential and commercial power supply system, and the small equipment on industry and agriculture, such as lighting support, heating equipment, irrigation system.

The 50 kva oil immersed transformercan fit most severe natural circumstance such as desert, high altitude and cold weather. Ever more, the 50 kva transformer also has a lower material costs than a 50 kva cast resin dry type transformer and a 50 kva pad counted transformer. 

The 50 kva cast resin dry type transformer use epoxy resin as insulated material. it allows a cast resin dry type transformer could apply on circumstance requiring fire protection such as air port, laboratory, school, and hospital. Meanwhile, the 50 kva cast resin dry type transformer has a lower maintenance cost since it does not need to regular replace insulated material. However, the 50 kva cast resin dry type transformer need to equip an extra protection cover to work in outdoor, as the designed protection level is IP00.

The 50 kva pad mounted transformer is an integrated power supply solution. It could equip control and protection unit on both primary and secondary side in a 50 kva pad mounted transformer. The input and output cable connect to the 50 kva pad mounted transformer through the underground. It will not be affected by natural disasters such as wind, rain, lightning strikes, and is not easily damaged by external objects, so it has high safety. In addition, underground cables can reduce the impact on birds and other animals, avoiding electrical accidents caused by animal contact.  

The costs of a 50 kva transformer

The cost of a 50 kva transformer is affected by the unequal technical requirement and the current costs of raw material. In Conso Electrical, the factory customizes each 50 kva transformer combined with the requirement from clients and the standard of IEC 60076. However, take a 11/0.4 kv 50 kva copper transformer as an example, the following number could be a reference:

The single phase 50 kva oil immersed transformer could be cost about $ 1050;

The three phase 50 kva oil immersed transformer could be cost about $ 1300;

The 50 kva cast resin dry type transformer could be cost about: $1900;

The 50 kva pad mounted transformer could be costs about: $4500.

How much active power could a 50 kva transformer supply?

To figure out this question, it is necessary to clarify the appearance power and active power. The 50 kva is the appearance power, which is the total power a transformer could supply. The appearance power of a 50 kva transformer is 50 kva. Active power is the energy actually use to work. Since it has the phase difference between voltage and current in AC circuit, which is caused by the application of inductors and capacitors, some part of power use to stabilize voltage and current in the AC circuit, of which the unit is kVar.

To ensure the power supply quality, the power factor cannot be lower than 0.9 forced by most of countries and areas. Thus, a 50 kva transformer could supply about 45 kW active power in 100% loading. In addition, a 50 kva transformer could serve a longer time if the regular loading rate is 50% to 80%.

What is the current of a 50 kva transformer could supply?

It is important to measure the rated current of a 50 kva transformer, because it is one of the ideal method to test the rated capacity of a transformer. The formula could be as follows:

Three phase system:I=P/(U*√3)*Cosȹ;

Single Phase system:I=P/U*Cosȹ.

I: rated current;

P: appearance power;

U: rated current;

Cosȹ: power factor.

Factors need to take care after receiving a 50 kva transformer.

The local power grid corporation has a professional team to install a 50 kva transformer. However, after receiving a 50 kva transformer, the following factors need to be check out:

1. No physical damages from the outside looking of your 50 kva transformer;

2. the original manufacturer and the local power grid corporation took the factory tests, and the two outcomes are matched;

3. the arrival materials matches to the purchasing list.

50 kva transformer manufacturers

Conso Electrical Science and Technology Co., Ltd is one of a reputed manufacturer in China. The company has produced 50 kva transformers since 2006. Conso Electrical manufacture and supply to 50 kva transformer to National Power Grid of China, urban construction group corporation and clients from oversea. The company is strict to produce 50 kva transformers as the requirement of clients and the standard of IEC 60076. each of 50 kva transformer will have factory tests until it reach to the requirement. Conso Electric is digging out a long term relationship with clients to become a reliable 50 kva transformer supplier and manufacturer.