How many kilowatts does a 100 kVA transformer carry?

A 100 kVA transformer can carry about 90KW. A transformer is a static electrical device that is used to change a certain value of AC voltage into another one or several different values ​​with the same frequency. voltage equipment.

The operating environment of this tutorial: Windows 10 system, DELL G3 computer.

A 100 kVA transformer can carry about 90KW.

A transformer is a static electrical device that is used to convert a certain AC voltage into another or several different voltages with the same frequency.

The most basic form of a transformer consists of two sets of coils wound with wires, and are inductively coupled to each other. Generally, the coil connected to the AC power supply is called the primary coil; and the voltage across this coil is called the primary voltage. because 100 kVA refers to the apparent power. If the power factor weight of the transformer is considered to be 0.8 under rated load, the power of the transformer is P=100 × 0.8=80 kW. If the transformer has 100 kW load will cause the transformer to overload, increase the temperature of the transformer, accelerate the aging of the insulation, and reduce the service life of the transformer.

Under special circumstances, the short-term overload operation of the transformer shall not exceed 1/3 of the rated load in winter and 15% in summer. The limit of overload operation time depends on the transformer Depending on the ambient temperature and the number of overloads, if the three-phase load is completely balanced and the power factor is equal to 1, then 100KW can be taken in theory.

However, this situation is unlikely to exist in reality. In addition, considering the requirements of transformer safety and power supply reliability, the load will be reduced. Depending on the specific situation, the KVA value multiplied by the power factor of the system is the KW value. One is the apparent power, including reactive power, and the other is the active power, which actually consumes electrical energy.

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