Difference between MCB and MCCB

MCBs and MCCBs have commonly used circuit protection devices. These devices provide protection against overcurrent and short circuits. There are a few difference between MCB and MCCB. Overview of MCB:…

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Difference between contactor and relay

Contactors and relays are two closely related terms leading to confusions and misinterpretations most of the times. Both of them are electrically operated switches used for control and switching of…

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What is ammeter selector switch?

Ammeter selector switch is basically a normal three position switch. In large Electrical distribution panels, an ammeter is used to monitor the current through each line. (more…)

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What are the essential components of a protective relay?

What are the essential components of a protective relay? The essential components of a protective relay are the following: 1.       Sensing element. 2.       Comparison element. 3.       Control element   Related…

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What is a protection relay?

    What is a protection relay?     Protection relay is an electrical device used to sense an abnormal condition in a power system and operate a circuit breaker…

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