The voltage of the motor will be expressed in volts, the current will be expressed in amps, and the efficiency will be expressed as a percentage. The motor should have these units of measurement written on it. Multiply the voltage, the current, and the efficiency, then divide the result by 746. For example, the horsepower of a 230v motor pulling 4 amps and having 82% efficiency would equal 1 horsepower.  Convert the efficiency into a decimal before calculating. For example, a 82% efficiency would equal .82.
اعرف قيمة شدة التيار والكفاءة وفرق الجهد للمحرّك. استخدم المعادلة "القدرة الحصانية = (فرق الجهد × الكفاءة) / 746" لتحديد القدرة الحصانية للمحرك.