Fault protection

A new terminology for electrical currents now include all faults those between live conductors as well as earth or grounding faults.

If we not design our circuit protection properly followed standard guide,it can cause serious injury or death for human and equipment damage.

Fault current be determined at every relevant point. For small and medium installations with LV utility supplies, this is satisfied by determination of the fault currents at the incoming power supply. read more

Types of electrical conduits

When we plan to do for electrical wiring,we need to use a conduit system to protect an electrical cable from damage due to mechanical or biological.It also make electrical wiring look nice and proper arrangement.

As an electrician,a knowledge about conduits is important to decide which types are suitable for our wiring application and structure.If we choose a wrong types,it can cause the serious damage,increase cost for material and also can reduce wiring life span.

An electrical conduit system is designed for electrical piping system used for wiring installation.It made electrical wiring more easy to installed and have a proper way. Electrical conduit may be made of metal, plastic,fiber, or fired resistance material. read more

Electrical installation

When we want to setup the new building or electrical application,it must have connection with electricity.So we need the electrical installation to make our application function properly and safety for human and equipment.

Theoretically electrical installation is a variation of electrical devices installed to achieve  specific purpose for any application.The key point that we must alert when dealing with the electrical installation is to take care necessary to ensure the safety of personnel and the protection of equipment from electrical faults.

So electrical installation is important subject that we must consider and get a clear view to avoid any injuries or damage for human or equipment.I want shared some information about electrical installation. read more

Circuit breaker specific features for main switchboard

For circuit breakers specification MUST suitable with installation condition and needed.Main switchboard is the main power supply distribution for factory or building.This unit is a key for entire electrical power supply distribution.

Circuit breaker feed the high volume of voltage for all equipment and machine.It also have a high value of short circuit current due to proximity of low voltage supply and size busbar for conveying the high current.

So we need carefully and detail understanding about circuit breaker before choose the circuit breakers for main switchboard application.This time i want share some information about criteria and specification circuit breaker for main switchboard. read more

Power factor capacitor installation

Last time i already discuss about how to sizing the power factor capacitor.After we got a figure and corrected size for capacitor,the next step is what is types for installation of capacitor?

The installation of power factor capacitor have several method that commonly used around the world.This time i want share some information about types of power factor capacitor installation method.

This part is critical and important because if we wrong to choose the installation method,it can cause a damage for our equipment or machine.It also can effected all equipment in our placed. read more

Molded case circuit breaker maintenance

The circuit breaker maintenance is very important and it must added in  periodical maintenance schedule.Why it so important?It is because of their importance for routine switching and for equipment protection and person.

Production will stop if circuit breaker fails to operate because of a lack of preventive maintenance.The cost will rise for repairing jobs and it not good for business.We must avoid from this unwanted situation because of not done the circuit breaker maintenance.

The need for maintenance of circuit breakers is often not obvious as circuit breakers may remain idle for long periods of time. Breakers that remain idle for 6 months or more should be made to services to ensure it in proper condition and remove any dust or foreign material on mechanism and contacts. read more

Miniature Circuit Breaker Sizing

When we design or build a electrical installation,we must know how to choose the suitable circuit breaker for the any application that we design.For electrician,this is compulsory knowledge.So here i want share my little knowledge about circuit breaker sizing method.

This calculation for sizing the miniature circuit breaker.For other circuit breaker likes MCCB,ACB,VCB,OCB and etc,it have a additional factor and calculation that we must consider.

For that why i will discuss it in my next post…so this time i want explain the simple way how to sizing the miniature circuit breaker for our application. read more