Motors that used a centrifugal switch to disconnect the start windings cannot be used with variable voltage control.
Answer the following statement true (T) or false (F)
True
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In the absence of a discharge path when using the CEMF controller and dynamic braking, what damage would occur due to the high voltage?
What will be an ideal response?
Answer the following statements true (T) or false (F)
1 Newton’s third law of motion states that for every action, there is a lesser but similar reaction. 2 Labyrinth seals are single-layer seals used to allow small amounts of leakage inside the turbine. 3 AC motors are the most common type of motor used in the process industries due to their simplicity. 4 Variable speed motors allow for the rotation speed of the motor to be adjusted. 5 Synchronous motors are the most common type of AC motor.
News stories about _____ are almost always newsworthy
a. personal issues b. technical issues c. issues in faraway locations d. financial issues
According to Section 310.15(B)(7)(1), for one-family dwelling service entrance ratings of 100 through 400 amperes the service conductors can have a rating of _____ percent of the service rating.
a. 73 b. 83 c. 100 d. 125