All Day Efficiency of Transformer
Definition The ratio of output in kWh to the input in kWh of a transformer over a 24-hour period is … Continue Reading
Transformer
Primary and Back-up Protection in Power System
Primary and Back-up Protection Primary protection (Main protection) is the essential protection provided for protecting an equivalent/machine or a part … Continue Reading
Load Forecasting – Purpose, Classification and Procedure
What is Load Forecasting? Electrical energy cannot currently be stored in large amounts. It has to be generated whenever there … Continue Reading
Video: How Single Phase and Three Phase Transformer Works?
In today’s post, we will go through a video that explains the working of single phase and three phase transformers in detail. We have already discussed the working principle of a transformer and Why Transformers are Rated in kVA, … Continue Reading
Corona Effect in Power System
What is Corona? The phenomenon of violet glow, hissing noise and production of ozone gas in an overhead transmission line is … Continue Reading
Rectifier Transformer – Working Principle and Application
What is the Rectifier Transformer? Rectifier transformers are different from normal power and distribution transformers because they are special transformers … Continue Reading
Basic Types of Current Transformers
Current Transformers (CT’s) are instrument transformers that are used to supply a reduced value of current to meters, protective relays, and … Continue Reading
Electrical Bushings – Types, Purpose and Construction with Diagrams
Definition According to IEEE/ANSI Std. an electrical bushing is defined as “an insulating structure, including a through conductor or providing a central … Continue Reading
Air Break Switch – Types and Uses
An “air break switch’ is a switchgear device that uses air as the dielectric. Air Break Switches (ABS) are widely … Continue Reading
What are Protective Relays? | Types and Working
What is a Protective Relay? The protective relay was invented more than 160 years ago. During the last 60 years, … Continue Reading