What is kA rating of MCB and MCCB?
kA rating of an MCB or an MCCB is the maximum current it can safely interrupt in case of a short circuit. If the current goes beyond this value, the…
What is an MCB?
MCB stands for miniature circuit breaker. It is a circuit protection device, capable of protecting a circuit or a piece of equipment from greater damages caused due to short circuits…
Electric Short Circuit
Electricity is required for lighting up our homes and powering up the industries. It can be constructive or destructive depending on how carefully it is handled. One of the most…
Difference between single-phase and three-phase power supplies
Anyone who uses electricity and have heard of terms: single-phase and three Phase, maybe trying to understand the difference between them. This article narrates the differences between a single-phase power…
Transformer – FAQ | Interview Questions -Part 3
What is the purpose of transformer oil? Transformer oil functions as a coolant as well as insulating material. It also enables transformer protection during internal faults. It is chemically stable…
Why is electricity transmitted at high voltages?
You might have noticed huge towers supporting the high voltage transmission lines in your locality. These high voltage lines transmit electric power generated at power stations which are situated at…
Transformer – FAQ | Interview Questions -Part -2
How does a transformer work? A transformer is an electric machine that converts AC voltage from one level to another level with minimum power loss. It is based on the…
Why is a transformer rated in KVA?
All electrical devices are rated based on the maximum power it can consume or generate or transfer. When few of them are rated in KW (kilowatts) or watts, few others…
Transformer -FAQ | Interview Questions- Part -1
What is a transformer? By definition, a transformer is a static electrical device that transforms electric energy from one level to another level. Normally transformers are used to step up…
Why is one of the pins in a three pin plug longer and thicker than the other pins?
Safety is the primary element of any circuit or electrical connection. Whether it is electric iron or refrigerator or any other home appliances, everywhere safety has to be ensured to…
