Answer Posted / kuttivenu
Single-phase or polyphase synchronous motors can't start
without being driven, or having their rotor connected in
the form of a self-starting circuit. Since the field is
rotating at synchronous speed, the motor must be
accelerated before it can pull into synchronism.
Accelerating from zero speed requires slip until
synchronism is reached. Therefore, separate starting means
must be employed.
| Is This Answer Correct ? | 17 Yes | 9 No |
Post New Answer View All Answers
What is Delta Connection? What is meant by Forward Delta & Reverse Delta & How Will be the Connection in Power Transformers?
difference between crane drive and line drive.
ho can we calculate the conductor insulation value according to their ratings like voltage,current etc.how insulation value related with voltage,current and power of amachine
what is the synchronous timer ? and it applications.
what is the formula of starting current of 3phase and 1 phase motor???
which connection is safer series or parallel?usually which connection we prefer at home?
-What should be minimum value of insulation resistance and maximum value of earth resistance at any electrical instillation and what is method of testing the same.
1sq mm dc powr cable can carry how much dc currnt
I am B.E.electrical engineer having 7 years of experience in Transformer testing upto 315 MVA.I want to khow how I can get the 'Electrical Valuer' License.
what is different between phase and netural
EXPLAIN THE TERMS "INTEREST AND DEPRECIATION" AS APPLIED TO ECONOMICS OF POWER GENERATION.
HOW TO SELECT THE COPPER CABLE SIZES OF MOTORS,TRANSFORMERS?
How the setting of the vector surge relay shall be calculated when the relay is to be used for Grid islanding application?
wat is d diffr btw shunt coil and trip coil in VCB?
Connection diagram for KW meter and Kva meter