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 Related Questions 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 ... Read Answers (6) | Asked by : sudhir.v 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. Read Answers (1) | Asked by : srinivas 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 ... Read Answers (2) | Asked by : praveen 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 ... Read Answers (1) | Asked by : vijaykumardas 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. ... Why do we rate transformer in KVA not in KW? Latest Answer : Transformer rating is always in KVA rather than in KW. it is due to the fact tha the core loss inside the conductor (which are mainly hysteresis loss and eddy current loss) depends upon the voltage and the iron loss depends upon the current core loss=v^2/R ... 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 . ...
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