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…

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Difference between Neutral and Earth

This article focus on explaining the similarities and dissimilarities between neutral and earth (ground). Understanding the difference between the neutral and earth may be difficult in the beginning. A Lot…

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Difference between Short circuit and overload

Short Circuit A short circuit occurs when two or more current-carrying conductors of different phases or different voltage levels or different terminal (in DC circuits) come in contact with each…

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Why ammeter is connected in series

Ammeter is a device used to measure the current flow through a conductor. The name is derived from the unit of current, Ampere. Ammeter is either connected in series to…

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Difference between circuit breaker and isolator

Isolator/ Disconnectors

Isolator or disconnectors, as the name indicates, is a switching or isolation device, intended to disconnect an equipment or electrical Circuit from the supply. It is an offload device, which means it can be operated only when the current passing through it is zero. Unlike circuit breakers, it lacks a built-in arc suppression system. It can be operated only during offload conditions. (more…)

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Transformer Action

Transformer action is a phenomenon by which EMF(Electro-motive force) is induced in from one coil to the other coil by electro magnetic induction. It is the basic principle of electric…

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