How Snubber Circuit works ?
The Snubber circuit is one type of dv/dt protection circuit of the thyristor. With the help of snubber circuit, the false turn-on of a thyristor due to large dv/dt can be…
How to Test TRIAC with Multimeter
How to test TRIACÂ with Digital Multimeter OR using Ohmmeter? In this short post we will discuss about how to test the Triac. Introduction about Triac: TRIAC = TRIode for Alternating…
Electrical Drives Questions & Answers
What is meant by V/F control? When the frequency is reduced, the input voltage must be reduced proportionally so as to maintain constant flux. Otherwise the core will get saturated resulting…
Power Electronics Interview Questions Part-1
Why thyristors are not preferred now a days for chopper fed DC drives? Since it requires commutation circuit, thyristors are not preferred now a days for chopper fed DC drives.…
Radiation Pyrometer Working Principle
As discussed earlier, an Optical Pyrometer can be not only be used for temperature measurement, but also can be used to see the heat that is measured. The observer is…
Top Electrical Engineering Questions & Answers
Electrical Switchgear & Protection Interview Questions Interview Questions on Transformers Single Phase Induction Motors Questions and Answers Three Phase Induction Motor Interview Questions & Answers Electrical Machines Short Answers Basic…
Electrical Switchgear & Protection Interview Questions
What are the main functions of control gear? To provide a means of starting and stopping the motor and, at the same time, of limiting the starting current if required.…
Types of Transformers
Types of transformers The transformers are classified based on voltage levels, Core medium used, winding arrangements, use and installation place etc. Transformers based on voltage levels The transformers are classified…
Losses of Transformer
Losses are the wastage of energy in the device which will affect the overall efficiency of the device. So the losses of the device should be known to design the…
Faults in a Transformer
Transformers are the major power system components which are used at various voltage levels with the capacity varying from 1kVA to >600 MVA. Transformers are widely used devices to transfer…
