How Many Amps In 3 Phase Power

By | July 29, 2022



Using 3 phase power for a business means increased efficiency, safety, and convenience. It’s a reliable and cost-efficient way to operate machinery and meet energy needs. But how many amps in 3 phase power? It’s not as simple as dividing the total system voltage by the number of phases. In fact, the amount of amps per phase depends on several factors like the type of transformer or motor being used.

To figure out the amps per phase of 3 phase power, the first step is to understand the relationship between the total power, volts, and current. Power is measured in kW and consists of three separate parts: volts, amps, and a power factor. The voltage is the difference in potential between two points and is measured in volts. The current is the amount of electricity that passes through one point per second and is measured in amps (A). Lastly, the power factor (PF) is the ratio between real power consumed and apparent power in the circuit.

Finally, the amperage of each phase can be calculated by multiplying the total power (kW) by the power factor and dividing it by the voltage. For example, if the power is 11.6 kW at 400 volts and the power factor is 0.85, then you can calculate the total amperage as 11.6 kW x 0.85 / 400 volts = 28.2 amps per phase. This calculation can be done with any power system to accurately determine the number of amps in 3 phase power.

Overall, understanding the relationship between the power, volts, and current, then calculating the total amperage of 3 phase power is necessary for safe and efficient operations. It’s important to calculate this carefully to avoid any damage to the system or potential safety hazards. With the right calculations, businesses can ensure the system is running efficiently and safely.


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