Latest Answer : A synchronous motor act as a synch. Condenser when the its field winding is overexcited and there is no load attached with it. The basic application of this phenomenon can be seen in the hydro power plant in peak load hours, when the grid supplies power ...
In a synchronous motor armature current flows due to revolving flux which in turn rotates the load,but in no load condition armature current is zero hence thr is no revolving flux then how motor rotates? pls give books referance.
What is the voltage drop for 100kw motor if the length of the cable is 200m and what is the cable size.
1. what is the different between CGS system and MKS system? 2. When we connect the capacitor Banks in Series with the circuit 3. What is the difference between Earthing & grounding 4. how much voltage
Latest Answer : transformer with secondary shorted is simulation of sq. cage induction motor ...
Latest Answer : Inductor Motor based on the principle of induction, in this when we apply single phase AC current field is set up as motor winding are closed current is induced in them which once moved through any method (capacitor start) cut the magnetic field and force ...
Latest Answer : Insualtion resistance(IR) value of a motor does not depend upon rating(i.e. KW). It is depend upon Voltage label in which it applied.There is a example:If V=415v then IR should be min. 1.415 MohmAnd if V=6.6kv IR should be min. 7.6 Mohm ...
Whats happens when we give DC to a induction motor
Latest Answer : In dc there is no rotating magnetic flux which is required to rotate ac motor. if we apply dc to ac motor, it may burn. ...
what is the testing of h.t and l.t. motors before erection and commissioning?
Latest Answer : Mainly IR value has been taken at site.Proper alignment has to be checked.No load run for 6 hours for temp. rise . ...
It is possible to run one DC machine as a generator or motor purposely? What adjustment we have to do for that operation?
Latest Answer : We can oprate a electromechanical energy conversion device as generator as well as motor. It depends how we want to operate the machine. A machine works as an motor when we provide electrical energy as input and gets mechanical enenry as output. So when ...
