Electrical

What is a transformer tap changer? Answer: A transformer tap changer is a mechanism that allows for variable turn ratios

What is the corona effect? Answer: The corona effect is a phenomenon that occurs when a high-voltage electric field ionizes

What’s the difference between contactor and relay? A contactor and a relay are both types of electrically operated switches that

Why is a thermal power plant not suitable for supplying a fluctuating load? Answer Grounding rods are typically installed vertically,

Can DC LEDs run on AC? Answer DC LEDs cannot run on AC power directly. They require a DC voltage

Can a grounding rod be buried horizontally? Answer Grounding rods are typically installed vertically, as the soil conditions are better

What is NO and NC on a contactor? Answer NO and NC are abbreviations for Normally Open and Normally Closed

How can we measure resistivity of earth? Answer There are several methods to measure the resistivity of the earth. One

What is the minimum distance between data and power cables? Answer When installing network cabling, it is important to maintain

Why does DC have more waste (less efficiency) over long distance than AC? Answer DC has more waste over long