admin

Electrical Machine

Slip Of Induction Motor

When have seen that rotor rotates in the same direction as that of R.M.F. but in steady state attains a speed less…

Electrical Machine

Speed Torque Characteristics In Three Phase Induction Motor

Uptill now, we have seen torque – slip characteristics of an induction motor. To compare the performance of induction motor with d.c.…

Three Phase Induction Motor

Slip Ring Rotor Or Wound Rotor In Three Phase Induction Motor

In this type of construction, rotor winding is exactly similar to the stator. The rotor carries a three phase star or delta…

Three Phase Induction Motor

Squirrel Cage Rotor Three Phase Induction Motor

The rotor core is cylindrical and slotted on its periphery. The rotor consists of uninsulated copper or aluminium bars called rotor conductors.…

Electrical Machine

V Curves And Inverted V Curves Of Synchronous Motor

From the previous article, it is clear that if excitation is varied from very low (under excitation) to very high (over excitation)…

Electrical Machine

Multiple Choice Questions Of Synchronous Generator Part 1

  Hello Engineers.  1. In an alternator, voltage drops occurs in (A) armature resistance only (B) armature resistance and leakage reactance (C)…

Electrical Machine

Synchronization With Infinite Bus Bar

There is a specific procedure of connecting synchronous machine to infinite bus bars. Infinite bus bar is one which keeps constant voltage…

Synchronous Motor

Synchronous Condensers

When synchronous motor is over excited it takes leading p.f. current. If synchronous motor is on no load, where load angle ? is very…

Electrical Machine

Synchronous Induction Motor

In the applications where high starting torque and constant speed are desired then synchronous induction motors can be used. It has the…

Machine

Direction Of Rotation Of D.C. Motor

1. Direction of Rotation of Motor The magnitude of the force experienced by the conductor in a motor is given by, F…