Calculating Total Current Draw for a Heat Pump on a 240v Power Line

[niko]

a heat pump is connected to a 240v, 60hz power line. the compressor has a current draw of 34 amperes when operating. the compressor has a power factor of 70%. the back up strip heat is rated at 10kw. what is the total current draw that will occur if the strip heat comes on while the compressor is operating

 

[TVP45]

Break the compressor current into real and reactive parts. Calculate the current of the strip heater (real). Add the real parts. Total = square root (real^2 + reactive^2)