1
100mA Shock can be fatal after how long?
1 second
What determines the speed of a motor?
The number of stator windings and the frequency of the applied voltage.
The Edison hook up is a common wiring arrangement for?
Power transformer
How do you discharge a capacitor?
capacitor discharge tool
A transformer with a 1 to 1 ratio?
isolation transformer
Compared to high speed generators, what do low speed generators need to provide power at the same frequency?
More pairs of poles
What has more resistance, the run winding or the start winding?
start winding
Transformer Primary is 120v and has 100 turns of wire. The secondary voltage is 12v. How many turns of wire in the secondary?
10 turns.
A peak voltage of 340vac has an effective voltage of approximately?
240vac
What has more starting torque? Delta or Wye?
Delta
How do we calculate VA rating? Can you go smaller?
volts x amps = VA
you cannot go smaller
Standard frequency in the United States?
60HZ
What removes the start winding in a motor?
centrifugal switch
In a purely inductive circuit, the current lags the voltage by how much?
90 degrees
The part of the DC generator that transmits the current from the generator to it's external circuit?
brushes