# Difference between circuit breaker and isolator

Isolator/ Disconnectors Isolator or disconnectors, as the name indicates, is a switching or isolation device, intended to disconnect equipment or electrical Circuit from the supply. It is an offload device,…

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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…

# MCB Trip Curves – B, C, D, K and Z trip curves

MCB (Miniature circuit breaker) is a re-settable device designed to protect a circuit from short circuits and overcurrents. The trip curve of an MCB's (B, C, D, K and Z…

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# Difference between MCB and RCBO

MCB – Miniature Circuit Breaker and RCBO – Residual Current Circuit Breaker with Overload Protection are circuit protection devices. These devices are commonly used in low voltage power distribution and…

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# Buchholz relay – Working Principle, Construction and Operation

In large oil-immersed transformers, we can find a cylindrical object installed in the pipe connecting the conservator to the main tank. This cylindrical object, that looks like a solenoid valve…

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# Difference between Higher potential and lower potential

Before getting into the topic, we have to keep two points in mind.1. Conventional Current flow. (The way Current is said to flow historically)2. ‎Actual current flow. (The way Current…

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# Kilovolt ampere to kilowatts (kVA to kW) converter

Kilowatt is the unit of power. It is the product of voltage, ampere and power factor. It is also called as real power. One kilowatt(kW) is equal to a thousand…

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# PLC, DCS, RTU, SCADA and PAC Systems

PLC - Programmable Logic Controller Programmable logic controllers are electronic devices used to control a process. It consists of CPU; Input and output devices, power supply, communication and redundancy units.…