Static Induction Thyristor (SITH) - Symbol and its Workings: An Static Induction Thyristor (SITH) or SI-thyristor is a self-controlled GTO-like on-off device commercially introduced in Japan in 1988. Similar device,…
Thyristor Control of Electric Motors Interview Questions and Answers: 1. Why the thyristor control is preferred over Ward Leonard system of speed control ? Ans. The thyristor control has some…
What is Thyristor? - Thyristor Family and its Applications Thyristor is the general name given to a family of semiconductor devices having four layers with a control mechanism, although this…
Induction Motor Drives Articles: Three Phase Induction Motors: Three Phase Induction Motors are of two types: squirrel-case and wound-rotor. In squirrel-cage, the rotor consists of longitudinal conductor-bars shorted by circular…
Slip Power Recovery Scheme used in Induction Motor: Slip Power Recovery Scheme used in Induction Motor - Figure 6.53 shows an equivalent circuit of a wound-rotor induction motor with voltage…
3 Phase Induction Motor Construction: A converter fed 3 Phase Induction Motor Construction has the following advantages over a line fed motor: 1.Smooth start up is guaranteed by variable frequency…
Static Relay: The term 'static relay' is generally referred to a relay incorporating solid state components like transistors, diodes, resistors, capacitors, etc. In this type of relay, the functions of…
Torque Speed Characteristics of Induction Motor: From Eq. 1.27 it can be observed that the maximum torque is independent of rotor resistance. However, the slip at which the maximum torque…