Starting Methods for Synchronous Motor
Synchronous motors are not self-starting. Some additional devices should be used to start the motor. Basically, there are two methods … Continue Reading
Need of a Starter (3 & 4 Point) in DC Motors
We use 3 and 4 point starters in DC motors. What happens if a DC motor is started without a … Continue Reading
Current Transformer (CT) – Construction and Working Principle
A current transformer (CT) is a type of transformer that is used to measure AC current. It produces an alternating current … Continue Reading
Classification or Types of Protective Relays
The IEEE defines protective relays as: “relays whose function is to detect defective lines or apparatus or other power system conditions … Continue Reading
Voltage Surge in Power System
What is Voltage Surge or Transient Voltage? The sudden rise in voltage for a very short duration on power system … Continue Reading
Why Voltage Control is Important?
In a modern power system, electrical energy from the generating station is delivered to the ultimate consumers through a … Continue Reading
Practical Transformer on No Load
Please read Ideal Transformer and Practical Transformer before continuing. Consider a practical transformer on no load i.e., secondary on open-circuit as … Continue Reading
Constant Current Driver Design based on LM317
Using a resistor to limit the current can be used for small LEDs. For such low power LEDs, where the … Continue Reading
What Jobs Electrical Engineers Do? | Roles and Responsibilities
Are you an electrical engineer searching for a job now? Thinking of what to do next? Have you ever thought about … Continue Reading
Why Current Transformer (CT) Seconday Should not be Open ?
Amazed why secondary of current transformer should not be open? If it is left open it may destroy the current … Continue Reading