What is a Megger? Principle, Advantages, Disadvantages, Applications
A megger is used to measure insulation resistance and it is powered by a DC generator or battery of a higher voltage range.
Electrical Basics
Electrical Basics
How to Connect a 3 Phase Motor in Star and Delta Connections?
A star connection is a 4 wire system, whereas a Delta connection is a 3 wire system. Learn how to connect 3 phase motor.
Why V/f Ratio is kept Constant in VFD?
When motor running through VFD the V/f ratio is kept constant in order to minimize the eddy current and hysteresis losses.
Types of Motor Enclosures
The enclosure is a part of the motor used for the protection from environment. In this article, we discuss seven types of enclosures.
What is Smart or Intelligent MCC?
A Smart MCC uses intelligent devices with dedicated controller with profibus communication to monitor & control the motors.
What is Torque Boosting in Variable Frequency Drive (VFD)?
High inertial motor loads can be started by programming the V/f pattern in VFD. This feature is known as Torque Boosting.
Polarization Index (PI) Test and DA Test
Polarization Index (PI) and DA Tests are used to check the insulation resistance value of insulating materials used for electrical system.
Types of Circuit Breakers, Advantages, Disadvantages
Based on arc extinction, electrical circuit breakers are classified into four categories. Learn the principle, advantages, disadvantages.
What is an Armoured Cable? Classification of Cables
The armoured cable is a common electrical cable with an extra protective layer to keep it away from unwanted cut or damage.
What is a Protective Relay? Principle, Advantages, Applications
A protective relay is an electrical component that is designed to trip a circuit breaker when a fault is encountered or identified.