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
Electrical
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
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
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
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
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
Effect of Temperature on Resistance
Understanding the relationship between temperature and electrical resistance is fundamental in physics and electrical engineering. Temperature significantly influences resistance. This phenomenon is crucial in designing … Read more