Circuit breaker is the one of important protection device when installing of electrical induction motor.This time i want shared some information about the major parameter that we need consider when applying Molded case circuit breaker(MCCB) for electric motor. If we not selected the right MCCB for our electric motor application,it will effected to the system [...]
In the Electrical Engineering field,many cases of accident or death around the world causes by electric shocked.It very dangerous because we cannot see,smell and feel the electric current. Current flow into our body and can make heart stop from functioning and can cause the serious injury even death.The level of danger for electric shock depends [...]
Magnetic contactor is a familiar device for control electrical motor,pump,capacitor and others.When it operate for long time,the main contact must be checked and cleaned due to sparking current during energized and de-energized. We also must cleaning the dust or foreign material to avoid magnetic contactor mechanism stuck or cannot function properly.Normally i perform the services [...]
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 [...]
When we plan to install air-conditioner unit in our home or resident,the first thing we must sizing the air-condition ( Horse power ) suitable with our space need and the air-conditioner types such split unit types. For split unit types,it have a several design for our choice likes Wall type,Ceiling enclosed types,Ceiling exposes,Cassette type and [...]
Generally for electric motor size,it rated by horsepower (hp) or kilowatts (kW) unit.We can recognize the electric motor size when refer to their kilowatts or horsepower.So from power (kW/hp), how we can know the full load ampere for electric motor? This time i want share about how to calculated the full load ampere (FLA) of [...]
Now around the world are using the speed controllers to control and drive their electric motor such as frequency inverter and soft starter.This speed control get a good reputation to reduce electricity cost and high efficiency to drive electric motor. Speed controller is low maintenance and have a long life span.It easy to install and [...]
