Figure 9 shows an insulated coil whose terminals are connected to a sensitive galvanometer (G). There is a bar magnet, AB, close to…

Net input to the synchronous motor is the three phase input to the stator. ...                      Pin = ?3 VL IL cos? W where        …

Consider a single phase induction motor with standstill rotor as shown in the Fig. 1. The stator winding is excited by the…

The rotor input P2, rotor copper loss Pc and gross mechanical power developed Pm are related through the slip s. Let us derive this…

In this type, the part of the field winding is connected in parallel with armature and part in series with the armature.…

The analysis of salient pole synchronous motor is based on the Blondel’s two reaction. The direct and quadrature axis components of current…

Currents in metals are due to the movement of charge carriers ‘electrons’. where I is the current in Amperes and A is the cross-sectional area of…

The armature winding used in d.c. machines are closed and double layer. Each of the coil has its upper coil side placed…

1. Introduction  If a three phase supply is given to the stator of a three phase alternator, it can work as a…

The construction of this type of motors is similar to the resistance split phase type. The difference is that in series with…