A fan delivering 20,000 CFM has a pressure rise of 6 " w.c. It's efficiency of 65%.
What is the brake HP requirement from the motor?
31
19
47
29
A fan draws 45 brake HP. It is powered by a motor with 90% efficiency. Input the the
motor is from an 85% efficient VFD. What is the electrical input to the VFD in kW?
56
40
44
34
A fan delivering 20,000 CFM has a pressure rise of 6" w.c. It's efficiency of 65% What is the brake HP requirement from the motor? 31 19 47 29
A fan draws 45 brake HP. It is powered by a motor with 90% efficiency. Input the the
motor is from an 85% efficient VFD. What is the electrical input to the VFD in kW?
56 40 44 34