10 December 2012 ~ 0 Comments

Electric Motor Maintenance

As we know,motors is a common used for rotating equipment to make domestic and industrial operation more easier.In general,electric motor is reliable machine with minor maintenance require.But to ensure electric motors have a more life span and service life,we must perform periodical inspection and service and schedule it with proper arrangement. With periodical inspection and [...]

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28 October 2011 ~ 0 Comments

DC motor starting

DC motor is the one of common types of motor that used for industrial application.It have more advantage and suitable for more heavy application in industry. This time i want share some basic information how DC motor starting.It important because from this we can know how to build and setting the controller for DC motor. [...]

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06 August 2011 ~ 9 Comments

Electro-Mechanical star delta starter

Star Delta starter is the most widely used application especially for Air-compressor and HVAC system.This starter used for 6 or 12 wire for motor terminal depend on electric motor that chosen for the application. Basically this starter used 3 unit contactor,1 unit timer delay,1 unit overload relay and start/stop button to control the star delta [...]

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24 June 2011 ~ 2 Comments

charging methods for UPS batteries

When we used the power from batteries,it will drop and losses the power performance.It must be charging to full back a capacity of batteries.It must be discharged periodically and charged up back to ensure it will supply enough power supply when needed. Manufacture have a design suitable charging process for their UPS to ensure it [...]

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23 May 2011 ~ 2 Comments

Auto transformer

This is a one from several types of transformer.It usually used for motor starter,we recognize it by name “auto transformer starter”.Basically design for auto transformer only have a single winding and provided with tap connection for step up or down. It have magnetic core with single winding which common primary and secondary circuits.The primary connection [...]

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11 May 2011 ~ 0 Comments

Safety interlocking devices

For the electrical power distribution,we used a switch gears to control our distribution power supply to user.One of important things when design the system,we must include with safety interlocking device. Motor control design also need to attach with interlocking system to ensure the operation is safe for user and can prevent for serious damage of [...]

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04 May 2011 ~ 1 Comment

Transformer winding connection

When we want to install the transformer for our project or any application and auto transformer stater,firstly we must know the transformer winding connection.If not it will cause the damage or serious injury when it install with wrong connection. So how we can identify the transformer winding connection?Here i want share some tips how to [...]

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