Have you ever noticed that Transformers, generators have power rating in kVA but Induction motors and Home appliances have power ratings in kW? Before answering this question “why transformer is rated in kVA not in kW”, we...
In our previous post, we have read that what are aerial marker balls? Basically these colourful balls are installed on the transmission lines and communication overhead lines at some remote locations to make them visible to the...
Have you ever noticed that some colourful balls are hanging on the High voltage transmission lines or power lines? You might have a question in your mind that what are these colourful balls and why they are hanging on these power...
In our previous Post we have already studied about “what is power factor?” Now, in this post we will study about the “disadvantages of low power factor” and we will also talk about the “types of...
In this blog we will study about “What is Power Factor” and the significance of power factor with a simple analogy. We will also see what are the disadvantages of low power factor. Later in this blog we will study about the...
Vacuum circuit breaker is most reliable among other circuit breakers like oil, Air blast or sulphur hexafluoride circuit breaker. In this post we will read about vacuum circuit breaker, its construction and working along with...
In this blog we will understand the concept of Active, Reactive and Apparent Power. We will also study about Instantaneous Power. We will also see how Active, Reactive and Apparent Power are related to each other which is...
In this post we will discuss Definition of Transformer and its working principle A transformer is a static device, it means it has no rotating parts like the other electrical machines such as synchronous machines and induction...
As we have already discussed about working principle of a single phase transformer in the previous section. We discussed that whenever a conductor is placed in a changing magnetic field then according to faraday’s law, an...