How many kilowatts can a 250KVA transformer use?

Principle: The total current of the load should not exceed the rated current of the distribution transformer.

Estimate: The rated current of the distribution transformer is measured at 144A per 100 kVA, and the 250kVA transformer is 144, which can also be calculated more accurately according to the formula.

Load current: to determine the nature of the load to determine the power factor of the load, the power factor of the resistive load is taken as 1, and the inductive load, such as the power factor of the motor and the electric equipment, and the comprehensive load is taken, the "power factor" is the ratio of the load current that the transformer can drag to the rated current of the transformer, in other words, the 250kva transformer can drag the 250kw electric heating equipment, and can also drag the 200kw electric equipment or 250kva of 250kva comprehensive equipment.

When the transformer loads the electric equipment, because the starting current of the electric equipment is relatively large, it is not possible to determine its load by such a calculation, and the "duty cycle" is generally considered to be 75% of the transformer capacity, that is, 250kva 75%. It can not only take into account the economical operation of the transformer, but also easily cope with complex and changeable load fluctuations.

When it comes to "duty cycle", it is the power of all equipment to run continuously, such as the total power of 250kw, they will not be started at the same time, and the average load of less than 190kw is running every working day, this "duty cycle" is 75%.

FYI.

A 250kVA transformer is capable of carrying a load of 170kw, calculated as follows:

1. According to the "Power Engineering Design Manual", the transformer capacity, for a single transformer with stable load power supply, the load rate is generally about 85%, therefore, the transformer load capacity is: 250 85%=.

2. The transformer power factor is generally also), therefore, the transformer load capacity is:

Hello, the transformer of 250 can use about 200kw.

The transformer of 250 is composed of an iron core and a coil, the coil has two or more windings, of which the winding connected to the power supply is called the primary coil, and the rest of the windings are secondary coils.

AC voltage, current, and impedance can be converted.

The calculation process is 250

Hope it helps.

Considering the power factor of the transformer, it is approximately, so the output power of the transformer is 250kva* so it can be suitable for a load of 200kw, but it is best to leave some margin, then it can be loaded with 200kw* The maximum current is not easy to calculate, because it depends on the maximum power of your load, and then you can calculate the maximum current when you know the maximum power.

250kW electrical equipment requires a transformer with a capacity of 368kW or more.

1. Transformer power factor.

Generally, there are also), then, the total power of the transformer = 250.

2. According to the "Electric Power Engineering Design Manual".

Transformer capacity, for a single transformer with stable load power supply, the load rate is generally about 85%, therefore, in the above example, transformer capacity = , choose a transformer with a capacity of more than 368kva.

3. If it is a single motor, due to the large starting current, even if measures are taken, the transformer capacity should be increased accordingly.

4. If the three phases are unbalanced.

The transformer capacity should also be increased accordingly.

Summary. Hello dear dear transformer with a capacity of 250 kVA can carry 150 kW. If the transformer is all electrically heated (resistive) loads, it can theoretically carry a load of 250 kilowatts.

However, according to the regulations of the Electricity Bureau, the maximum load is 85% of the full load, which is 212kva. If all are inductive loads such as motors, it is generally necessary to give 6 discounts, that is, 150 kilowatts of motor loads, if both loads are available, then 7 discounts (175kw) or 8 folds (200kw), it depends on which load accounts for more proportion.

In general, the capacity space should be reserved for electrical appliances, because the current of electrical appliances with motors and capacitors will be very large when they start, so it is more suitable to be about 200 thousand volts.

How many kilowatts can a 250 transformer carry?

Hello dear dear transformer with a capacity of 250 kVA can carry 150 kW. If the transformer is all electrically heated (resistive) loads, it can theoretically carry a load of 250 kilowatts. However, according to the regulations of the Electricity Bureau, the maximum load is 85% of the full load, which is 212kva.

If all are inductive loads such as motors, it is generally necessary to give 6 discounts, that is, 150 kilowatts of motor loads, if both loads are available, then 7 discounts (175kw) or 8 folds (200kw), it depends on which load accounts for more proportion. In general, the capacity space should be reserved for electrical appliances, because the current of electrical appliances with motors and capacitors will be very large when they start, so it is more suitable to be about 200 thousand volts.

Principle: The total current of the load should not exceed the rated current of the distribution transformer. Estimate:

The rated current of the distribution transformer is measured at 144A per 100 kVA, and the 250KVA transformer is 144, which can also be calculated more accurately according to the formula.

This requires the calculation of the current to match, assuming a power factor of .

250kw rated current: 250

Matching transformer: load factor) =

The transformers that are close to the calculation results are 400kVA and 500kVA, and 500kVA is recommended.

10kV transformer amount slag fixed carrying capacity: 400

10kV transformer rated current carrying capacity: 500

It is important to understand that the "power factor" is for the load (electrical equipment), not for the transformer that provides the power.

The load has an inductive load that is divided into a high and a resistive load, and the power factor of the resistive load is "1", and the power factor of the inductive load is between ".

Ok dear, question received, please wait.

The general power factor is calculated, p=s*cos=250*, and the transformer of 250kVA can withstand the load.

Questions. How much Ann!

In the three-phase voltage, it can withstand almost 400A current.

Questions. Thank you.

You're so welcome, dear, I hope it can help you

Summary. It's a pleasure to serve you.

I can band 150kw

A transformer is a power supply device. Its capacity is usually measured in apparent power (kVA).

250kva=250kw when the load equipment is resistive, 250kva* when the inductive load force rate, and 250kva* when the inductive load force rate.

Have a great day

There is no problem, I hope to click on the lower left corner, I want to rate and give a like, and if you have any questions, please feel free to ask, dear

We are glad to serve you with 150kw transformer power supply equipment. The unit of capacity is usually calculated in terms of apparent power (kVA), when the load equipment is resistive, 250kva=250kw, when the inductive load force rate is 250kVA*, and when the inductive load force rate is 250kVA*. I wish you a happy life No problem, I hope to click on the lower left corner, I want to rate and give a like, and if you have any questions, please feel free to ask, dear

Generally, it is 220kw, and if the power factor is well controlled, it can reach 250kw.

It can reach 200kw, but it also depends on whether your electrical appliances have too high requirements for the power supply, if there are no requirements, you can have more.

The maximum output current is about 250 °C. The maximum load kw is determined according to the actual power factor of the equipment, because, kva is the apparent power, kw is the active power, if the load equipment does not have reactive power, then, for example, all are incandescent lamps, or pure resistance equipment such as resistance wires, the transformer can theoretically carry a load of 250kw, and when it is actually used, because there is reactive power on the power supply line, it needs to be discounted.

The formula is p=u i cos

Hehe, the first floor is really funny, the transformer is impossible to output up to 250kw even if it is a full resistive load, because it has its own loss.

In order to supply more loads, in addition to the quality of the transformer itself, the control of the power factor in the power supply is inevitable, the maximum load of the transformer of 250 is 220kw is possible, but it is generally not recommended to do this, in the long run, there is also a certain harm to the transformer. The transformer capacity should not only be greater than the sum of the capacity of the electrical equipment, and there should be a margin. It is recommended that the load is about 200kw, if there are more electrical devices turned on at the same time, you can change the capacity of the change.