How much capacity of transformer should be used for the existing installed power of our unit of 240k

This needs to be calculated, and the calculation process is published, and you will calculate the power match in the future.

Your unit power is 240kw, then according to the actual self-consumption of electric energy 17%, you should be 240kw + (240kw * this is the number of transformer power that can meet your current needs, but this is just to meet your current needs, in order to increase the uncertainty of the extra-budgetary installation power that you can increase in the future, the installation power should be calculated according to your current rated power, converted to the reserved power number is 72kw, so you should actually need, But the transformer is not made according to the power you calculated, you only have to choose the model that adapts to the power of the transformer, the principle is only big and not small, but the closest value is used, so your power should be 350kva

In general, a transformer of 315kVA is sufficient after considering the motor starting coefficient and the simultaneous utilization rate of the equipment.

If it is 240kw full power for 24 hours operation, it is recommended to use 350kva, if it is not running at full power for a long time, it is also possible to use 300kva!

A minimum of 315kVA transformer is required.

The total power of the equipment is 600kw, and the transformer with a capacity of 800kVA is selected.

The capacity specified on the nameplate of the transformer is the rated capacity, which means that the tap changer is located in the main tap, which is the product of the rated no-load voltage, the rated current and the corresponding phase coefficient gear sail.

For three-phase transformers, the rated capacity is equal to = 3 rated phase voltage and phase current, and the rated capacity is generally expressed in KVA or MVA.

The 380V 450kw motor cannot be started directly, its starting current and impact are too large, the power grid can not stand it, and it will always trip as soon as it starts.

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

1. The transformer power factor is generally available), then, the total power of the transformer = 250.

2. According to the "Electric Power Engineering Design Manual", the transformer capacity, for a single transformer with stable load power supply, the load rate is generally about 85%, therefore, in the above example, the transformer capacity = , choose the 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-phase is unbalanced, the transformer capacity should be increased accordingly. Pin Hail.

250kw rated current Huaizhi this: 250 lead Xun.

Matching transformer power:

Matching head transformer model: 10kV

Summary. Hello, I found it for you.

1. First distinguish whether the 180 kilowatt equipment is rotating equipment or a combination of multiple equipment.

2. If 180 kilowatts is just a rotating device, the capacity of the transformer should be 630kva transformer if it is started directly, and the transformer capacity should also be 315kva if a soft starter is used

3. If it is multiple equipment, it is recommended to choose a 315kVA transformer to start the load grading.

bHope it helps.

The total power is about 240kva + about 180kw how big a transformer is needed.

Hello, I am helping you to inquire about the relevant information and will reply to you immediately.

Hello, for you to find out 1, first distinguish the 180 kilowatt equipment is a rotating equipment or a combination of a variety of equipment 2, if 180 kilowatts is just a rotating equipment, direct start of the transformer capacity should choose 630kva transformer, if the soft starter for the preparation of the talk, the capacity of the transformer balance roller also needs to be in 315kva3, if it is multiple equipment, it is recommended to choose 315kva transformer, the load grading start b I hope to help you.

Generally speaking, the conversion coefficient between the state companion motor book and the transformer with the same garbled capacity is about the same, so you need to choose a slightly larger transformer to match the 50kw motor. Assuming that the power factor of the motor is, according to the definition of power factor, the capacity of the transformer should be selected: 50kw * = Therefore, a transformer with a capacity of about 70kva should be selected to match this motor with a maximum power of 50kw.

Of course, there are other factors that need to be considered in practical applications, such as load fluctuations, the stability of the power supply, and so on.

Summary. How many transformers are needed and the specific parameters of the transformer will be affected by the actual situation, and some commonly used calculation methods are provided below for reference:1

Calculation method 1: according to the equipment power to determine the transformer capacity equipment power is 80kw + 150kw = 230kw, if the power supply voltage is 380v, it needs to be boosted to 10000v, then the calculation formula of transformer capacity is: transformer capacity = total power of equipment input voltage load rate) = 230kw 380v +230kw 380v = Therefore, the total capacity is , one or more transformers can be used, and the specific need for several transformers can be judged according to the actual situation.

2.Calculation method 2: The relationship between the power and current of the transformer capacity equipment is determined according to the current

p = vi, so substituting the power and voltage of the equipment yields: equipment current = total power of the equipment input voltage = 230kw 380v +230kw 380v = according to the current, the formula for determining the transformer capacity can be as: transformer capacity = equipment current transformation ratio, where the transformation ratio is the ratio of the input voltage to the output voltage of the transformer.

According to the actual situation, you can choose the appropriate conversion ratio. It should be noted that the above is only an estimation method based on the power and current of the device.

One device has a power of 80kw, and the other 150kw needs a transformer.

How many transformers are needed and the specific parameters of the transformer will be affected by the actual situation, and some commonly used calculation methods are provided below for reference:1Calculation method 1:

According to the power of the equipment to determine the capacity of the transformer equipment power is 80kw + 150kw = 230kw, if the power supply voltage is 380v, it needs to be boosted to 10000v, then the calculation formula of the transformer capacity is: transformer capacity = total power of the equipment input voltage load rate) = 230kw 380v +230kw 380v = Therefore, the total capacity is , one or more transformers can be used, and the specific need for several transformers can be judged according to the actual situation. 2.

Calculation method 2: The relationship between the power and current of the transformer capacity equipment is determined according to the current: p=vi, so the power and voltage of the equipment can be substituted to obtain

Equipment current = total power of equipment Input voltage = 230kw 380v +230kw 380v = According to the current, the formula for determining the transformer capacity is: transformer capacity = equipment current transformation ratio where the transformation ratio is the ratio of the input voltage to the output voltage of the transformer. According to the actual situation, you can choose the appropriate conversion ratio.

It should be noted that the above is only an estimation method based on the power and current of the device.

Almost 700-750kVA transformers are required.

Summary. Hello, dear, 280 kilowatts with 300 square copper core cable 280 kilowatt current is about 500a, can be used 300 square copper core cable, 300 square copper core cable interception current 500a. This is the absolute safety cable, in fact, 240 can be used normally 280kw, 380v three-phase asynchronous motor according to the motor power calculation formula:

p=,u—phase voltage, i—phase current, —power factor. The rated current of the motor is about 532A. According to the current carrying capacity of the cable, 240 square millimeters copper core cable can be selected.

Hello, dear, 280 kilowatts with 300 square copper core cable 280 kilowatt current is about 500a, can be used 300 square copper core cable, 300 square copper core cable interception current 500a. This is the absolute safety cable, in fact, 240 can be used normally 280kw, 380V three-phase asynchronous motor according to the motor power calculation formula: p =, U - phase voltage, I - phase current, - power factor.

The rated current of the motor is about 532A. According to the current carrying capacity of the cable, 240 square millimeters copper core cable can be selected.

If you use an aluminum core cable, how many squares should be used.

Hello, dear, how many square meters of aluminum wire is appropriate? It should be at least squared.

**How many square cables should be used for the capacity of 280kw and 500 meters away from the transformer.

How many squares should be used with aluminum core cables.

Hello, pro, 280kw, working current 510A, starting current more than 1500A, at least 185 square mm copper core wire cable 2 parallel use, if the power supply distance is more than 100 meters, consider using 3 185 cables in parallel.