Electrical Machines - Inst Tools

Difference between Induction motor and Synchronous motor

Induction Motor: 3 phase induction motor is self starting. Self starting torque is generated hence no special means is required

Induction Motor: Almost 70% of the machines used in industries now a days are 3 phase induction motors. It works on the

Starting Current in Induction Motor: Starting current of induction motor is as high as 5 to 7 times the normal

Requirements of parallel operation of alternators: The alternators which are to be operated in parallel should meet the following requirements

Faults that can occur in 3 phase induction motors and associated protections are discussed below: Stator faults: These faults include

During normal operation of the Synchronous Generator or Alternator excitation to the rotor is provided by the small DC generator

Normally the rating of synchronous generators or alternators will be in KVA or MVA instead of kW rating. Electrical apparatus

HV 6.6kV Induction motor Protection For HV motors rated 6.6kV and above motor over current, stalled rotor, and short circuit

DC Motor Applications in Industries In spite of wide use of ac supply, dc machines have some advantages compared to ac motors

Synchronous motors are not self starting machines. These machines are made self starting by providing a special winding in the