Difference between volts and amps | Volts vs amps
Volts and amps (ampere) are the two different measures of Electricity. In a close circuit, the electric potential difference between two points is called Voltage and the flow of electrons […]
What is AC or Alternating Current?
AC or Alternating current is an electric current that continuously changes its magnitude with time and periodically reverses its direction. In Direct Current or DC, there is no change in […]
What is OLTC or On-load tap changer in Transformer? Working Principle
OLTC stands for On-load tap changer which is used in Transformer to regulate the output voltage. OLTC is installed inside the transformer main tank. It is operated by a Drive […]
What is mAh in mobile battery?
mAh stands for milli Ampere hour which defines the total capacity of current a mobile battery can deliver in an hour time. To express the total storage capacity, the mAh […]
DGA or Dissolved Gas Analysis of Transformer oil
DGA (Dissolved Gas Analysis) is an important tool for checking the healthiness of oil-filled power transformers. Power Transformer is important and expensive equipment in Power Transmission and Distribution systems. Periodic […]
Causes of over voltage in Power System
When the voltage goes higher than the rated voltage is called Over Voltage. It is a very common issue in Power systems. System voltage is to be maintained as per […]
What is Restriking Voltage? Effects and Methods of Arc Extinction
After opening the Circuit Breaker under load or fault condition, a transit voltage appears across the breaker contacts which is called Restriking Voltage. Frequency of Restriking voltage goes in kH. […]
What is corona effect? Advantage and Disadvantage of Corona
The Corona Effect is the phenomenon of electric discharge in high voltage transmission lines and substations. Hissing noise and violet glow were observed under the corona effect. Power loss, damage […]
Types of Cable Lugs
Cable lugs are used for termination or connection of cables to the Terminal Box (TB). There are so many types of cable lugs are available based on the cable size. […]
What is DC or Direct Current?
DC or Direct Current is electrical current which flows always in one direction. As we know, when electron flows from one place to another place, it is called electric current. […]