A certain 6-pole 440Vrms 60Hz three phase delta connected induction motor has Rs=0.08; Rr’ = 0.06; Xs=0.20; Xr’ =0.15; Xm=7.5 Under load, the machine operates with a slip of 4% and has rotational losses of 2kW. Determine the power factor, output power, copper losses, output torque and efficiency.

Apiping systems consists of 6 m of 6-std type k and 12 m of 4-std type k, both drawn copper tubing. the system conveys ethylene glycol at a rate of 0.013 m3/s. the pressure drop across the system is to be calculated. there are two 90° elbows in the 6-in pipe, a reduction from the 6-in pipe to the 4-in pipe and four 90° elbows in the 4-in pipe. all fittings are soldered (same as flanged) and regular. the inlet and outlet of the system are at the same height.