How big is the transformer suitable for 75wk

To choose a 150kva transformer.

In line with the principle of "small capacity, dense distribution point", the distribution transformer should be located in the load center as far as possible, and the power supply radius should not exceed one kilometer. The load factor of the distribution transformer is the most efficient between, and the capacity of the transformer at this time is called the economic capacity. However, if the load is relatively stable, the transformer capacity can be selected according to the economic capacity in the case of continuous production.

According to the characteristics of scattered users, small load density, seasonal load and strong interstitial characteristics of rural power grids, capacity regulating transformers can be used. The capacity regulating transformer is a kind of transformer that can adjust the capacity without load according to the load size, and it is suitable for use in places where the load has obvious seasonal changes. For substations or industrial and mining enterprises with large electrical loads, the power supply mode of mother and child transformer is generally adopted, one of which (mother) is configured according to the maximum load, and the other (time) is selected according to the low load state, which can greatly improve the utilization rate of the distribution transformer and reduce the no-load loss of the distribution transformer.

In view of the fact that some distribution transformers in rural areas are in a low-load operation state for a long time in addition to a small amount of peak electricity load in a year, the power supply mode of mother-child transformer or transformer parallel operation can also be used for qualified users. When the load changes greatly, transformers of different capacities are put into operation according to the principle of lowest power loss. For the special transformer that only supplies power to power loads such as drainage and irrigation, the capacity of the transformer can generally be selected according to the power of the nameplate of the asynchronous motor, the starting current of the general motor is four to seven times the rated current, the transformer should be able to withstand this impact, and the capacity of the largest one of the motors that start directly should generally not exceed about 30% of the transformer capacity.

It should be pointed out that the special transformer for drainage and irrigation should generally not be connected to other loads, so as to stop operation in time during the non-drainage and irrigation period and reduce the loss of electric energy.

It should be 75kw, which is estimated to be the motor, and the load is calculated according to 80%, that is, the transformer is relatively close to the motor, and the line loss is very low.

A 100kVA transformer should be used.

You can buy it directly in the local market, and the aluminum is about 10,000. When you buy it, you ask for a one-year warranty.

75kva power is 7500 watts. 75kVA is the upper limit of power, that is, exceeding the secondary power regulator may overheat or burn out. Kilowatt (kW) = kilovolt-ampere (kva) multiplied by the power factor.

When the power factor is 1, prepare 1kva=. kW (kilowatt), which was the power unit of electricity in the early days, now has a tendency to extend to the power unit of the entire field of physics. Electrically, kilowatt hours.

It is exactly the same as the degree, but the title is different.

Power system. The most common units in are:

Voltammetry is a unit of total power.

A watt is a unit of active power rushing ridge.

Total Power * Efficiency = Active Power.

KVA is the apparent power, which includes active power and reactive power.

Kilowatt kW is active power.

Kilowatt (kW) = kilovolt-ampere (kva) multiplied by the power factor.

KVA is the apparent power, which refers to the capacity of the equipment (usually the transformer).

Kilowatt kW is active power, which refers to the active power consumed by your equipment (generally power equipment).

How big a transformer is needed for a 75kw motor.

75kw motor how big transformer do you need, 75 kilowatts of power need 120kva transformer core to do Huai according to the load calculation to determine the capacity of the transformer, the number of units, the compensation of reactive power, load calculation based on the need coefficient method. The load on the high-voltage side should be taken into account and the active and reactive power loss of the transformer when calculating the load, considering the line loss, the 75kw motor needs to be equipped with a minimum of 120kVA transformer, in line with the original hail rule of "small capacity, dense distribution point", the distribution transformer should be located in the load center as far as possible, and the power supply radius should not exceed one kilometer. The load factor of the distribution transformer is the most efficient, and the capacity of the transformer is called the economic capacity.

Summary. A 100kVA transformer can drive a 75kw motor to work. It's just that the motor can't start directly, because the maximum current of the ordinary asynchronous motor can reach 7 times the rated current of the motor when it starts.

This will cause the system voltage to drop a lot during starting, resulting in a startup failure.

How big a transformer is needed for a 75kw motor.

Hello Qinqin line loss, 75kw motor needs to be equipped with at least 120kva transformer hustle.

How big is the transformer for a 95 kilowatt motor.

The pro requires a 200kva transformer.

The 75 kilowatt motor is 100 kilovolt to make how much harm it is, and the 100kva hunger transformer can drive the 75kw electric rotten motor Gongzhou argued. It's just that the motor can't start directly, because the maximum current of the ordinary asynchronous motor can reach 7 times the rated current of the motor when it starts. This will cause the system voltage to drop a lot during starting, resulting in a startup failure.

Okay thank you.

How big a transformer is needed for a 75kw motor.

75kw motor how big transformer do you need, 75 kilowatts of power needs 120kva transformer according to the load calculation to determine the capacity, number, reactive power compensation, load calculation to the need coefficient method. The load on the high voltage side should be calculated and the active and reactive power loss of the transformer when calculating the load, I hope mine can help you! If my answer is helpful to you, please give a thumbs up (comment in the lower left corner), look forward to your like, your efforts are very important to me, your support is also the driving force for my progress, and finally I wish you good health and a happy mood!

It is better to choose a 90kva transformer.

If the output power of the transformer is 80% for long-term continuous operation, that is, the power factor is calculated, and the power of the transformer = 70.

The transformer uses the principle of electromagnetic induction, and the amount of electrical energy transmitted by an electrical appliance that transmits electrical energy or signals from one circuit to another circuit is determined by the power of the electrical appliance.

The specific working principle is: when the AC voltage U1 is applied on the primary side of the transformer, and the current flowing through the primary winding is i1, the current will produce alternating magnetic flux in the iron core, so that the primary winding and the secondary winding have electromagnetic contact; Let's match.

According to the principle of electromagnetic induction, the alternating magnetic flux will induce an electromotive force through these two windings, and its magnitude is proportional to the maximum value of the number of winding turns and the main magnetic flux, the voltage on the side with more winding turns is high, and the electric closing slip residual voltage on the side with fewer winding turns is low, when the transformer is open on the secondary side of the car roll, that is, when the transformer is unloaded, the voltage at the primary and secondary ends is proportional to the number of turns of the primary and secondary windings, that is, u1 u2=n1 n2, but the primary and secondary frequencies are consistent, so as to achieve the change of voltage.

The secondary output current of a 100 kW transformer is 150A, and your 75 kW motor is also nearly 150A, and if you don't add equipment in the future, a 100 kW transformer is enough.

The whole transformer of more than 100kw is stable and dripping.

How do you start the motor at least 100 million or more It is recommended to install a larger one that will be useful in the future The transformer is large and not easy to break.

1. The transformer is 80 or 100kva. It depends on whether your 70 kW is a long-term load or a phased one.

2. The transformer, as well as various additional electrical appliances (switches, insurances, etc.), wires, poles (if it is far away from the previous transformer), etc., all of these costs must be paid by you.

3. The cost is difficult to say. You go to the power supply department to apply first, and the cost will be clear. Let's see if the 15w can take it down.

4. Good luck.