50 kVA Transformer, Get Best Price

What is a 50 kVA transformer？

A 50 kVA transformer has a capacity of 50 kilovolt-amperes, with a power factor of approximately 0.85. It provides around 45 kW of active power and can support electrical appliances consuming up to 45 kW.

Read more: What is a 50 kVA distribution transformer?

How many loads can a 50 kVA transformer handle? 

A 50 kVA transformer can load 35~50 kW

VA is the unit of apparent power S, W is the unit of active power P, P=S*COS, COS is the power factor, 50KVA transformer means that it can withstand 50kVA load, but the power factor is unknown, assuming that the low-voltage section does not compensate, power factor 0.8, the transformer can take 50*0.8=40KW, if the low-voltage section has no power compensation, After compensation power factor 0.95, that can take 50*0.95= 47.5kW.

From the operation observation, no matter how much load, as long as the temperature of the transformer is slowly rising, the temperature does not exceed 85 degrees and can operate normally.

Equivalent aging principle of transformer: Equivalent principle of aging is the transformer windings in a part of the run-time temperature lower than 95 ℃ or less load, in another part of the time can make winding temperature higher than 95 ℃ or overload, just make more loss is equal to the life of a transformer overload timeless loss of life in owe load time, the two cancel each other out, can still maintain the normal service life.

 Transformer insulation aging six degrees principle: when the transformer winding insulation temperature is in the range of 80 ~ 130℃, the temperature rises 6℃, the insulation aging speed will increase twice, that is, the temperature rises 6℃, the insulation life will reduce 1/2, this is the "six degrees rule" of insulation aging.
Cannot run if:
1) The temperature rises rapidly and soon exceeds 85 degrees.
2) There is smoke inside the transformer.
3) There is a crackling sound.

Try for free: Ultimate 500 kVA Transformer For Guide

How many houses can a 50 kVA transformer supply?

Most all-electric homes in the U.S. have 200A service, though they rarely need that much at any given time. A four-bedroom 2,300-square-foot house, for example, uses about 50 kWh per day or 1,500 kWh per month. I would say it's typical.

But for 240VAC 200A service, that's 48kVA, so a 50 kVA transformer can power only one home. However, at 1500 KWH/month or 50 KWH/day or 2.083 KWH/hour or an average of 2.083 kVA. But that's the average. I would say it could be up to 5 times or 10kVA at a time, so a 50kVA transformer can power 5 homes.

50kVA transformer types 

50 kVA transformers can be divided into single-phase pole-mounted transformers, single phase pad mounted transformers, and dry-type transformers. Here we introduce the single-phase pad-mounted transformer in detail.

We introduce DAELIM ANSI/IEEE single-phase pad-mounted transformer, with a capacity of 50kVA, a high voltage rating of 7200V, and a low voltage rating of 480/240V.

Learn more: How Much You Know For The Different Types Of Transformers?

50kVA Transformer features

50 kVA single phase pad mounted transformer fully sealed, fully insulated, safe and reliable, small volume, compact structure, beautiful appearance, volume is only about 13 of the box type substation (European type box transformer). 

The double fuse full range protection method greatly reduces the operation cost. The cable head can be live operation and has a strong overload capacity. The transformer body is treated with special technology and has a good anti-corrosion ability.

10kV bushing cable head can be inserted and removed in 200A load current many times, used as a load switch in emergency situations, and has the characteristics of an isolation switch. The use of high ignition point oil, eliminating fire hazards,

Adopt domestic 9 types, 11 type distribution transformer, low loss, low noise, long service life.

Try for free: 3 Phase Pad Mounted Transformer

50kVA Transformer Application places

Power distribution can be directly placed indoors or outdoors and also can be placed on both sides of the street and the green belt, reliable to ensure personal safety, both power supply facilities, and also decorate the environment.

Can be used for terminal power supply and ring power supply, conversion is very convenient, to ensure the reliability and flexibility of the power supply. 

Reading more 50 kVA pole mounted transformer

50kVA Transformer accessories

High voltage plug and pull the fuse, backup fuse, low voltage circuit breaker, pressure release valve, oil level gauge, oil injection valve, tap switch, load switch, etc.

Read more: What are the standard accessories for a Pad-mounted Transformer?

How big is a 50 kVA transformer?

Most all-electric homes in the U.S. have 200A service, though they rarely need that much at any given time. A four-bedroom 2,300-square-foot house, for example, uses about 50 kWh per day or 1,500 kWh per month. I would say it's typical.

But for 240VAC 200A service, that's 48kVA, so a 50 kVA transformer can power only one home. However, at 1500 KWH/month or 50 KWH/day or 2.083 KWH/hour or an average of 2.083 kVA. But that's the average. I would say it could be up to 5 times or 10kVA at a time, so a 50kVA transformer can power 5 homes. 

How much does a 50 kVA transformer weigh?

50KVA distribution transformer, generally copper coil, S9 series transformer weight is about 360 kg, and S11 fully sealed series transformer weight is about 440 kg.

Different types of 50kva transformers have different weights. 
The weight of the 50 kVA single phase pole mounted transformer is about 395kg.
The weight of the 50 kVA single phase pad mounted transformer is about 553kg.
The weight of the 50 kVA three phase pad mounted transformer is about 550kg.

You may enjoy: The Ultimate Guide to 112.5kVA Transformer

How many amps can a 50 kVA transformer handle?

Regarding the 50 kVA transformer amps, you must first know whether it is single-phase or three-phase; then you must also know the high and low voltage.

The current calculation formula is as follows:

Three-phase transformer: I=P/(U*√3)

Single-phase transformer: =P/U

Here we take a 50 kVA 3 phase transformer as an example, high voltage 13.2kV, low voltage 0.48kv;

Then according to the formula: I=P/(U*√3)

The low-voltage side current is obtained as 50/(0.48*1.732)=60.14A;

The high voltage side current is: 50/(13.2*1.732)=2.1A

Learn more about Pad Mounted Transformer

50 kVA transformer specifications

For 50 kVA transformer specifications, different types and different national standards are also different.

The table below lists the specifications of Daelim's 50 kVA single phase pole mounted transformer and single pad mounted transformer;

50 kVA single phase pole mounted transformer specification:

Learn more about Transformer Specification

50 kVA single phase pad mounted transformer specification:

How much does a 50 kVA transformer cost?

50 kVA price is determined by the different types of the transformer, voltage, frequency, connection type, cooling type, impedance, no-load loss, and full load loss, NLTC and OLTC, power frequency withstand voltage, and lightning impulse withstand voltage these are the factors influencing the price of transformer is very important, we can not directly answer here. However, you can send the technical parameters or specific requirements for a 50kVA transformer to Obayashi, and the Obayashi team will give you a detailed quotation for the transformer.

Custom 50kva transformer

Daelim is a professional transformer supplier, which can custom design and produce 50kva transformers that meet various international standards and types, such as the US DOE efficiency value, ANSI, IEEE, CSA, etc. Daelim engineers have rich experience in overseas transformer projects, especially in North America, South America, and other markets; thousands of 50kva transformers are sold to North America and South America. If you are looking for a transformer supplier, Daelim will be your good choice. Daelim also produces pad-mounted transformers, HV transformers, and substation transformers.