For the motor in Problem 7.1 and for a fan-type load, calculate the value of the resistance that should be added to the rotor circuit to reduce the speed at full load by 20%. What is the motor efficiency in this case?

What will be an ideal response?


Trades & Technology

You might also like to view...

While discussing EV batteries, Technician A says that in hybrid vehicles, the cells in the battery packs are all connected in series. Technician B says that in plug-in hybrids and pure electric vehicles, some are connected in parallel and some are in series.

A. A only B. B only C. Both A and B D. Neither A nor B

Trades & Technology

Typically circular objects are drawn using half sections where required

Indicate whether the statement is true or false

Trades & Technology

Name the railing placed around an opening for stairs, porches, or balconies.

What will be an ideal response?

Trades & Technology

Seven masons finish 420 square feet of concrete in 1 day. How many square feet does each mason finish in 5 days?

What will be an ideal response?

Trades & Technology