Tricky but Easy Electrical Engineering!
Slip rings are used in rotating electrical assemblies to make a continuous electrical connection between stationary and moving conductors. This enables the stationary power source to transmit electrical power to the rotating component. Basically, a slip ring is a band of electrically conductive material mounted on a shaft. Although insulated from the shaft itself, the … Read more
Fuse: A fuse is the small piece of wire connected between the two terminals of insulated mounted base. Fuse is always connected in the series of the circuit of low voltage equipment. It is the simplest and cheapest form of protection from overload and short circuit. The Fuse is expected to carry the normal current … Read more
Most of us use laptop / mobile and we charge our laptop daily by using their charger. But did you ever notice the round portion on the charger as shown in figure below. Did you ever think of what is that round portion? The round portion as shown in the figure is Ferrite used for … Read more
The most important precaution which shall be taken care while working with a CT is that its secondary should never be kept open. In this post we will discuss this aspect of CT. As we know that Current Transformers (CTs) are always used with secondary winding connected with Ammeter, Relays or Wattmeter Coils. A precaution … Read more
Over voltages in power system may occur due to lightning or switching operation. These overvoltages could reach dangerous amplitudes for power system apparatus. To protect the system electrical equipment and to guarantee an economic and reliable operation, surge arresters are applied in almost all types of electrical power network. Gapless zinc oxide (ZnO) surge arresters … Read more
MCB stands for Miniature Circuit Breaker which is widely used in home and industries. A Miniature Circuit Breaker (MCB) is a small circuit breaker that is used for residential and industrial applications. As every circuit breaker, it has both a switching function (it allows the connection / disconnection of the circuit where it is installed) … Read more
Output voltage of a Synchronous Generator cannot contain even harmonics. For understanding the reason, carefully observe the figure below. As shown in the figure, one full pitched coil a and a’ are placed. The fundamental component of field flux wave induce maximum emf in coil sides a and a’ as these are cutting the maximum … Read more
In this post we will discuss about how to eliminate or suppress the harmonics from the emf waveform of an Alternator. In an Alternator, the primary source of harmonics in the emf waveform is due to non sinusoidal field waveform. If the field waveform would have been sinusoidal then there have been no harmonics in … Read more
Being an Electrical Engineer, it is very much important to know about Electrical safety and what should be the action if someone gets shock. Safety is the first priority in any Industry and it is the responsibility of an Electrical Engineer to make aware of the Electrical safety to his/her subordinate. In most cases of … Read more
In today’s scenario, Industries expects something ahead of CGPA in this competitive world from an Engineer. 20-33% out of the 1.5 million engineering graduates passing out every year run the risk of not getting a job at all, points out EconomicTimes. This is because they lack some of the skills which are expected from the industries, … Read more