motor nameplate information #1 – Electrical Input

The important information that we can see on motor nameplate is a electrical input.From this we can know what the voltage for motor,the suitable frequency,full load ampere,type of connection ( star or delta ),power factor and others.

We can collected the data for induction motor from name plate.This information is very important to troubleshooting or rectify any problem happen about that motor.

This information is critical items to ensure we install the right motor ans suitable with our application.Ok,i explain the detail about electrical input for induction motor that we can found on name plate. read more

How to replace bearings for electric induction motor?

For electric motor failure causes,the common defected for mechanical part is bearing.Normally 1 unit motor have a 2 pieces of bearing and type of bearing for induction motor is ball bearing full metal cover ( ZZ ).

Root cause for bearings problem usually such as rusty due to condensation process,ball in housing broken,grease was burn out,a ball bearing nest broken and overload or motor shaft connected with load is not alignment properly.

For electrician or maintenance person,this is a routine jobs and it is a compulsory skills for this person who involved in electrical motor field.

This time i want share my little experience how to replaced bearing for electric induction motor.Don’t worry, i explain detail step by step how it done in my video.I hope it can be a guidelineĀ  to do it yourself in actual workplaces. Read more

Alternating Current (AC)

What is an alternating current?

Alternating current (ac) is changing the current flow.Changes in the flow of current in ac circuits because if the changes the polarity of the alternating voltage source alternately.

Current value will increase from zero to a maximum in the positive direction and then dropped to zero. Next, the current will be reduced to a maximum in the negative direction. Then, the current back up to zero.

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