Category: Electrical

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why fuse is not connected in neutral ?

In electrical circuits, fuses are used as a protective device to prevent the circuit from an excess current flow. An excess current flow can cause due to many reasons such as short circuit, overload, etc....

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Need of starter in dc motor

While starting a DC motor huge amount of current can be driven to the windings due to the absence of the back emf. The current may rise about 4-6 times higher than the rated load current...

Inductive reactance formula derivation and calculation 0

Inductive reactance formula derivation and calculation

Inductive reactance equation derivation Inductive reactance is the opposition offered by the inductance to the current flow. The Inductive reactance is directly proportional to the frequency ‘ f ‘ and the inductance ‘ L’....

Capacitive reactance formula derivation and calculation 0

Capacitive reactance formula derivation and calculation

Capacitive reactance equation derivation The capacitive reactance is inversely proportional to the frequency ‘ f ‘ and the Capacitance ‘ C’. The value of capacitive reactance is measured in ohms. Capacitive reactance calculation Capacitive...

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Why earth pin is thicker and longer?

Most plugs and sockets are 3 pin type which consists of a phase, neutral and earth. In a 3 pin plug, the earth pin has thicker and longer size compared to the other two...

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Single phase induction Meter Advantages & Disadvantages

Single phase induction meters are very popular for domestic and industrial use because of its wide application as energy meter. Induction meter includes types such as induction voltmeters, induction Ammeters and induction watt-hour meters....

Advantages and disadvantages of overhead and underground lines 0

Advantages and disadvantages of overhead and underground lines

Overhead transmission system   Advantages High Power transmission. The overhead transmission has low installation and material cost. Long distance transmissions. The fault or damage in overhead lines can easily locate. Maintenance of the line is...