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Crowbar fault protection circuit
Crowbar circuit is used to protect circuit or equipment under fault condition Over Current Causes: Over current flow through thyristors ... -
R R-C Firing Circuits Disadvantages
Firing Circuits: Gate triggering is the most commonly used turn-on method employed to switch on the thyristors. Triggering circuits is ... -
Top 100 Power Electronics Questions & Answers
Why IGBT is very popular nowadays? Lower hate requirements Lower switching losses Smaller snubber circuit requirements What are the different ... -
How to test SCR using Multimeter
This post will discuss about testing SCR – Silicon Controlled Rectifier with thte help of Ohmmeter. The thyristor pin assignment diagram ... -
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 ... -
How to Test TRIAC with Multimeter
How to test TRIAC with Digital Multimeter OR using Ohmmeter? In this shot post we will discuss about how to test ... -
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 ... -
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 ... -
Basic Power Electronics Interview Questions
What is holding current in SCR? It is the minimum current required to hold the SCR in forward conduction state. ... -
Power Electronics Interview Questions & Answers
[1] What is full converter? What is dual converter? Full converter: When positive as well as negative half cycles of ...