What is a Network ?
What is a Network ? A network consists of two or more computers that are linked in order to share resources (such as Internet, Data, printers and CD-ROMs), exchange files,…
Control Valve Positioner Working Principle
A Control Valve Positioner is a device used to increase or decrease the air load pressure driving the actuator until the valve's stem reaches a “POSITION” balanced to the output SIGNAL from…
Bubble Tube Level Measurement Principle
In the bubble type level system, liquid level is determined by measuring the pressure required to force a gas into a liquid at a point beneath the surface. This method…
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 of TO-220 package is given for ready reference. Identify the…
Difference between Permanent Magnet BLDC and DC Motor
What are the main Difference between Permanent Magnet BLDC and DC Motor ?
BLDC Motor Vs AC Induction Motor
What are the main Difference between BLDC Motor and AC Induction Motor?
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 TRIAC 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.…
