Definition of Surge voltage

30/10/2011 by 1 Comment

What is the surge voltage?For our easy understanding,electrical surge is a sudden high pick out of voltage value in the system.It can happened in electrical power distribution and communications lines entering homes,factory, offices, and other facilities.

The surges voltage happened due to natural factor such as lighting or human error.It can effected and can cause serious damage for any unprotected electronic device that connected to the power or communication lines.

Electronic products that are especially vulnerable to surges include microprocessors or micro controllers, such as computers, TV, server system, cordless telephones, and inverter. read more

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Miniature Circuit Breaker

03/09/2010 by 67 Comments

What is Miniature Circuit Breaker?

MCB (Miniature Circuit Breaker ( BS 3871 ) is a mechanical device operate automatic operation designed to connect and disconnect the electrical circuit in the ordinary and extraordinary situation.Suitable for AC and DC voltage.It mean main function is to protected equipment or circuit from overload and short circuit.

The size of MCB is small and usually use for household appliance and domestic.Average fix ampere rating from 6 Amp up to 125 Amp. It can be reset back to the normal condition after trip but cannot adjusted ampere rating.It can be found for single phase 1ø and three phase 3ø voltage power supply.

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Fuses

01/09/2010 by 2 Comments

What is a FUSE?

Fuse is a basic device used to break the circuit when there is a overcurrent.it consists of metal wire fuse element which is connected by two terminal.fuse element will be blow if the current through it exceeds the limit was set.

Its use is widespread due to the efficiency and durability.Also, if the price is cheap compared with other protective device.we can find a variety of fuse which is used widely different in appearance and appropriate use of an electrical circuit.

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Protective Device Introduction

30/08/2010 by Leave a Comment

What is protective device introduction?

Electrical distribution systems are often quite complicated. They  cannot be absolutely fail-safe. Circuits are subject to destructive overcurrents. Harsh environments, general deterioration, accidental damage or damage from natural causes, excessive expansion or overloading of the electrical distribution system are factors which contribute to the occurrence of such overcurrent.

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