Testing a Thermocouple With a Multimeter
What is a Thermocouple? A thermocouple falls under the category of electronic devices known as transducers. Basically, a transducer converts one physical quantity into another. In case of the thermocouple,…
Seebeck Effect Theory
The Seebeck effect is one of the three major variations, which can be observed under thermoelectric effect. It was named after the German physicist Thomas Johann Seebeck, who discovered the…
Peltier Effect Theory
In 1821, German scientist Thomas Seeback conducted several experiments on electricity. He discovered that electric current will flow through a circuit comprising two dissimilar conductors, provided the junctions where these…
Differences Between AC and DC Motors
What are the key differences between AC and DC motors? As with the different types of DC motors, the main difference between AC and DC motors centers around how the magnetic…
Fire and Gas System Loop Checks Procedure
Guidelines to be followed by F&G Engineer during Fire and Gas System Loop Checks Procedure. Read this article on Fire Alarm System commissioning.
Zigzag Transformers Theory
The most common connection used in grounding transformers is the Zig-Zag connection. The grounding transformer is commonly referred to by this connection type, the Zigzag Transformer. Grounding Transformers are used…
Synchronous Motor Starting Methods
In the previous article we came to know that synchronous motors are not self starting so to make them start automatically we should add some tweaks.We should rotate rotor near…
Synchronous Motor Is Not Self Starting?
To get a clear idea about this question consider a rotating magnetic field as equivalent to physical rotation of two stator poles N1 and S1 as shown in the figure.Assume…
Synchronous Motor Working Principle
A motor is an electro-mechanical device which converts electrical energy to mechanical energy. and a 3 phase motor runs at synchronous speed is called synchronous motor.Synchronous motor mainly runs on…
Basics of Grounding
Why Ground? Poor grounding not only contributes to unnecessary downtime, but a lack of good grounding is also dangerous and increases the risk of equipment failure. Without an effective grounding…
