Conversion using the Kw to Amps Formula
How to Calculate Amperage from Real Power KW and Voltage volts using DC line current.
The Current I in amps A is calculated as the 1000 times the real power P in Kilowatts kw, divided by the voltage in volts v. Plug these values into the formula:
For Example, let's find the current of a circuit with 6 kW of power at 80 volts.
How to Calculate Amperage from Real Power KW, Voltage Volts and Power factor pf using AC Single Phase current.
The Phase Current I in amps A is calculated as the 1000 times the Real Power P in kilowatts kw, divided by the power factor in pf times the RMS voltage in volts V. Plug these values into the formula:
For Example, let's find the current of an 10 kW motor with an efficiency of 75% and a power factor of 0.8 at 220 volts.
How to Calculate Amperage from Real Power kw, Voltage volts and power factor pf using AC 3-phase current for Line-to-Line Voltage.
The 3 Phase Current i in amps A is calculated as the 1000 times the Real Power P in Kilowatts kw, divided by the square root of 3 times the Power factor in pf times the line-to-line RMS Voltage VL-L in volts v. Plug these values into the formula:
For Example, let's find the current usage of a 35 kW 3-phase motor with an efficiency of 80% and a power factor of 0.9 at 440 volts (line to line).
How to Calculate Amperage from Real Power KW, Voltage volts and power factor pf using AC 3-phase current for Line-to-Neutral Voltage.
The 3 Phase Current i in amps A is calculated as the 1000 times the Real Power P in Kilowatts kw, divided by the 3 times the Power factor in pf times the line-to-line RMS Voltage VL-L in volts v. Plug these values into the formula:
For Example, let's find the current usage of a 20 kW 3-phase motor with an efficiency of 80% and a power factor of 0.9 at 440 volts (line to Neutral).
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