Induction Motors Faults and Protection
April 25, 2016
Faults that can occur in 3 phase induction motors and associated protections are discussed below: Stator faults: These faults include...
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What happen When Synchronous Generator loss Excitation
April 25, 2016
During normal operation of the Synchronous Generator or Alternator excitation to the rotor is provided by the small DC generator...
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Why rating of Synchronous Generators and Alternators in MVA or KVA
April 25, 2016
Normally the rating of synchronous generators or alternators will be in KVA or MVA instead of kW rating. Electrical apparatus...
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6.6kV HV Induction motor Protection
April 24, 2016
HV 6.6kV Induction motor Protection For HV motors rated 6.6kV and above motor over current, stalled rotor, and short circuit...
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Why Damper windings used in synchronous motors
April 24, 2016
Synchronous motors are not self starting machines. These machines are made self starting by providing a special winding in the...
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Applications of Synchronous Motors
April 24, 2016
For industrial squirrel cage induction motors are used mostly for the motor and drive systems applications. Synchronous motors are very...
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Advantages of Hydrogen cooling in Synchronous Generators
April 24, 2016
Cooling system should be provided in the generator or alternator to remove the heat generated in the windings (I2R loss)...
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Advantages & Disadvantages of Variable Speed Drives
April 24, 2016
Variable Speed Drives (VSDs) are employed in the industrial applications where different speeds are require to operate certain process systems....
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Advantages & Disadvantages of Synchronous Motors
April 24, 2016
In industries induction motors are employed mostly because of less cost, rugged construction, good starting torques and very less maintenance....
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Induction Motor Operating Characteristics
April 24, 2016
All torques of an induction motor, at a given slip, vary approximately as the square of the voltage applied to...
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