What is Millman’s Theorem? Millman’s Theorem Formula
The network or circuit theorems are a tool to solve complex electrical problems. We use Millman’s Theorem to solve complex electrical circuits having many voltage … Read more
What Happens if DC supply fails in an electrical substation?
This article describes the importance of DC supply in substations. Circuit breakers are the main power-controlling elements that are switched on and off during normal … Read more
What is the Difference between Soft Starter and VFD?
The main difference between VFD and Soft Starter is that a VFD can increase or decrease the speed of the motor, while a soft starter only controls the smooth start and stop … Read more
AC Hum & Contact bounce in Magnetic Contactor?
AC hum & contact bounce in a magnetic contactor cause premature failure of the contactor. In this post we will discuss in detail what is … Read more
Which Bulb Glows Brighter When Connected in Series & Why?
We can connect the bulbs in the series or parallel according to the desired application. The lumen of the bulb depends on the current flowing … Read more
Job Opportunities for Electrical Engineers in Government and Private Sectors in India
In this post, we will discuss the job opportunities for electrical engineers in government & private sector in India. Engineers are the backbone of development … Read more
Why is the core of a power transformer grounded?
Transformer is a static piece of equipment and it has primary and secondary winding. The low voltage winding has few turns of wire wound around … Read more
Why PS Class Current Transformer is used for Differential Protection?
What is Differential Protection? Differential protection is used for detecting the fault in a particular zone. Therefore, we call it also unit or zone protection. … Read more
What is the disadvantage of large exciting current in a transformer?
What is Exciting current? The exciting current in the transformer produces the magnetic flux in the core. When energizing transformer at no load, transformer draws … Read more
Difference between no load, exciting, and leakage current in transformer
The no-load current of a transformer is the vector sum of the exciting current and core loss current of the transformer. Why Losses in a … Read more