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What else can I help you with?
What happens when an ac motor is given dc supply?
it burns thats it
What happens if 3 phase supply is given to stator and rotor both in a induction motor?
its impossible to give suppy to rotor of an induction motor,because of it a closed path for circulating currents.
What happens when dc is given to ac motor?
motor will not rotate
What happens when a motor is short circuited?
Shorting the motor's electrical supply will blow the fuse and the motor will run down and stop.
What happens if a DC motor is connected to an AC supply?
Through loda
What happen when single phase supply of induction motor interrupted while driving the load?
That happens when the supply is turned off, and the motor runs down and stops.
Why synchronous motor called double excited motor?
AC and DC supply sources we are given to motor so we are called double excited motor
What happens if dc is given to induction motor?
It will draw a heavy current and coils will be brunt.
What will happen if dc supply is given to shunt dc motor?
It will drawn a large amount of current which can destroy the shunt
Does the value of the exciting current of your 3-phase motor depend on the rotor speed?
An induction motor has no excitation, so the question is about a synchronous motor. The rotor speed is determined by the supply frequency. For a given supply frequency and mechanical load, the excitation current can be adjusted to give the best power factor.
How does an ac drive variable speed drive operate to control speed?
Answer #1 It varies the frequency fed to a synchronous AC motor. As the frequency changes, so does the motor speed. Answer #2 The formula for calculating speed is: (120 X motor supply frequency) / number of poles 120 is a fixed number, so is the number of poles for a given motor, hence the only variable is the motor supply frequency. AC drives vary the motor supply frequency in turn achieving speed control.
What effect does the pencil lead have on the speed of a motor?
Pencil lead applied to the moving parts will improve performance by reducing friction. This may or may not increase the speed of the motor for a given power supply.
