For some kinds of electric motors - not all kinds - the answer is yes.
It is hard to explain the reasons using very simple terms, but here goes:
Most small direct current electric motors that have stators which are made of permanent magnets can be made to generate direct current electricity when their rotors are turned at a fast enough speed by another engine, such as, for example, a car engine or a steam engine.
For more information see the answer to the Related Question shown below.
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Yes and no. If a motor was supplying electricity to a system, then it would be called a generator. The device, while unexcited, is both a generator AND a motor, but until it excites a system (a generator) or is excited by a system (a motor) does it becomes one or the other.
A motor is a device that converts energy into useful motion (arguably it can be described as a device to convert many differing forms of energy into kinetic energy).
A device that converts useful motion (or kinetic energy) into electricity is an electric generator.
If the motor is connected to an ungrounded delta supply service there will be no effect on the operation of the motor. If the motor is connected to a wye system supply service and the B phase grounds out, the motor's overload protection would take the motor off line from the electrical supply.
of course you can.but the purpose of electricity is lost here.generators run by petrol or diesel engines are used because you dont have a electric supply or there is a power outage.if there is no power how can you run the electric motor which runs the generator.hence the generator is always coupled with and diesel IC engine.
As the motor is a three phase machine,it must be AC supply
That happens when the supply is turned off, and the motor runs down and stops.
AC and DC supply sources we are given to motor so we are called double excited motor