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…
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…
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…
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…
Over-current Any situation in which the current flow through a device or conductor exceeds the desired value is known as over current. Both overload and short circuit can cause excessive…
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…
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…
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…)
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…
MCB (Miniature circuit breaker) is a re-settable device designed to protect a circuit from short circuits and overcurrents. Trip curves of MCB's (B, C, D, K and Z curves) tell…