What Is Meant By Reactance Voltage?

1.	What Is Meant By Reactance Voltage?
Answer» An ARMATURE coil has certain self inductance. When coil undergoes commutation, there is change in CURRENT (DI) in that coil and the commutation takes certain time(dt). Thus there is self-induced emf in a coil undergoing commutation given by L(di/dt). This EMF induced in the coil undergoing commutation is called REACTANCE voltage.

Answer»

An ARMATURE coil has certain self inductance.
When coil undergoes commutation, there is change in CURRENT (DI) in that coil and the commutation takes certain time(dt).
Thus there is self-induced emf in a coil undergoing commutation given by L(di/dt).
This EMF induced in the coil undergoing commutation is called REACTANCE voltage.

Discussion