Electric Potential, Potential Difference and EMF

In this article, you will study what are electric potential, the potential difference (PD) and electromotive force (emf) and the difference between them. Just as a body raised above the …

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Insulation Resistance Test (IR Test) or Megger Test

Insulation Resistance Tester Megger

Insulation Resistance or IR Test is carried out by maintenance engineers to ensure the healthiness of the overall insulation system of electrical equipment.  It reflects the presence or absence of …

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MCB (Miniature Circuit Breakers) – Types, Working and Trip Curves

Inside Parts of a Miniature Circuit Breaker

What is MCB? MCB or Miniature Circuit Breaker is an electromechanical device which protects an electric circuit from an overcurrent. The overcurrent in an electrical circuit may result from short circuit, …

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