General Requirement For Motor Installation

22/08/2013 by 4 Comments

Electric motor is the common application equipment in domestic or industry.If we have a knowledge and good guideline how to selected and install with proper way,It’s can smooth our installation project progress without any problem.

Motor selection and method of installation must suitable with our application to avoid any problem or design error.That why before installation we need have a design review with Electrical & Mechanical Engineer.This time I want share some information about requirement for motor installation that I hope it can gave some basic guideline how to handle motor installation project. read more

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Electric Motors Voltage and Balance

17/12/2012 by Leave a Comment

When we plan to install an electric motor for our application,the one of  important parameter that we MUST verify is about VOLTAGE.Ensure the voltage is balance between phase to phase.

Motor voltages should be kept as close to the nameplate value as possible, with a maximum deviation of 5 %. Normally motors are designed to operate within 10% of nameplate voltage.

What happen if your voltage variations is large than nameplate voltage?The answer is if  voltage variations larger than motor nameplate voltage,it’s can have several damage effects to the motor on torque, slip, current, efficiency,power factor, temperature, and service life. read more

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Troubleshooting Electric Motors – Part 2

14/12/2012 by 2 Comments

This post is a continue from the troubleshooting electric motors part 1.As I mentioned on my last post, I will share information and guideline about electric motors breakdown.

Once it has determined that the motor is at fault, you can proceed to locate the problem with the motor. A troubleshooting guide outlines a comprehensive variety of motor problems.

Generally the categories are arranged according to symptoms, offering brief suggestions concerning what to look for when investigating motor failures and often providing advice on how to correct the problem once it has been identified. read more

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Troubleshooting Electric Motors – Part 1

12/12/2012 by 5 Comments

Breakdown causes by electric motor failures always happen in our operation due to of 2 major factors.It is Mechanical component defect and Electrical circuit failure.

Typical instruments used for troubleshooting motor operation problems include a Multimeter, Clamp-on Meter,Insulation Resistance Meter, and Infrared Thermometer. These instruments are used to measure voltage,current, resistance, insulation resistance, and temperature.

But when we involve for electrical testing,it have a risk and can lead to injury or electrical shock.We must aware during handling electric motor and to reduce the risk we need to follow safety procedure to avoid any incident by certain to read more

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Types Of Motor Enclosures

08/08/2012 by 1 Comment

The main purpose of motor enclosure is to provides protection from environment  impacts such as rain,corrosive,rusty and many more in which motor installed.

This protection can make motor more life span and can running in suitable condition.It also provide a types of cooling system for a motor depend on their types of enclosure.

Before we select a motor enclosures for our application,please review about location,types of environment impact and ambient temperature to avoid any mistaken. read more

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Basic of Motor Control

01/08/2012 by 2 Comments

What is definition of motor control?This is familiar question from electrical person around the world.Motor control is common practice for machine application and industry operation.

Basically motor control definition is to STOP and START the electric motor.Technology and innovation of motor control is always developed to parallel with current application needed.

Motor control have a two basic methods.There is MANUAL control and MAGNETIC control.I describe detail about manual and magnetic control circuit diagram and basic operation. read more

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Motor loads calculation

24/07/2012 by 18 Comments

On my last post,i discussed about why we need to determine motor loads and efficiency.So for this post i want to share how to get the motor load value using simple calculation electrical formula.

Before we go further,i want to explain about Power.What is meaning of Power?Of course this term is significant with our discussion topic.Power is rated of energy in electrical circuit.

It is combination from Amperage and Voltage value.Basic formula for Power is P (watt) =I(ampere)  x V (volt).Power also measured in Horsepower (hp) unit.For common conversion from electrical Horsepower to Watt is 1hp = 746 watt. read more

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