0
Still curious? Ask our experts.
Chat with our AI personalities
Taiga
Devin
CoachAdd your answer:
Earn +20 pts
How floating condition of synchronous motor occurs?
at the time of starting when syncchronous torque is zero , i.e. when the motor starts with the help of starting torque , the armature current required to produce sync. torque is zero. If V = E(b) i.e. When back emf E(b) equals supply voltage.
Which device has its characteristics very close to that of an ideal current source?
A: A current source can be defined as a zero impedance source. A battery is essentially a zero impedance since it can provide lots of current with zero volts out
What are the application of differential compound generator?
Differential compounded generators are used in Ward Lenard motor generator loops. The shunt fields on these generators are separately excited and when the shunt field polarity is reversed by the controller the series field helps drive the generator voltage to zero thus aiding in the reversal of current.
Example of ideal constant-current source?
A current source ideally should be with an internal impedance of 0 zero. So even if the output is zero volts current can flow.
When is the collector current approximately zero?
In CUTOFF.
