Electrical Basics Archives

Understanding Braking Theory in VFD

In this post, we will see the braking theory and logic used in a variable frequency drive (VFD) for proper control of a motor.

Analog signals are continuous and digital are discrete. Learn what are analog and digital signals and differences between them.

An electrical drive is defined as an electronic device designed to control certain parameters of the motor for controlling speed.

Capacitor bank is used for reactive power compensation and power factor correction in the electrical substation.

A busbar is a metallic bar in a switchgear panel used to carry electrical power from incoming feeders and distributes to outgoing feeders.

In electrical engineering, a Current Transformers (CT) together with Potential Transformers (PT) is called an Instrument transformer.

Learn the inverse time and instantaneous trip circuit breakers principle, operation, advantages, and disadvantages.

Electrical enclosure is used to protect devices from hazardous environments. Download electrical enclosure book from automation direct.

Both soft starter and VFD can start and stop the motor but the main difference is VFD can do the speed control of motor also.

A megger is used to measure insulation resistance and it is powered by a DC generator or battery of a higher voltage range.