When install new air-conditioner or replaced new compressor or change new expansion valve,we need to evacuation or vacuum process.This is important to ensure no air inside the piping system.For easy understanding,this process is to vacuum the system to take out the air and moisture. If air remain in the air-conditioner and refrigerant piping,it will affect [...]
Overload relay is the one of important device for motor control.It can prevent our motor from overheat or winding burning due overload of ampere. We need to setting the value of overload relay properly depend on our application and motor full load ampere.If we setting low from FLA,it can cause motor trip c0ntinues and process [...]
A motor overload relay is an electro-mechanical relay that is operated by heat developed in the relay.When the level of current in a circuit reaches a preset value, the increased temperature opens a set of contacts. Overload relay should install in our motor starter application for extra protection.Overload relay can avoid serious damage for electric [...]
To ensure our air-conditioner running in good condition, we must perform periodical services at least every 6 months.Why we must care and cleaning our air-conditioner? The main cause when our air-condition have a low performance came from dust filter is dirty,it will cause a low cooling capacity,increase electricity cost,unpleasant smell and purified air to our [...]
This energy come from sun.It send a enormous amount of energy.It totally free and clean source.Now the solar energy become the alternative green house technology for electricity generation.It call the green technology.It not pollute the environment and not accumulate any hazardous waste. Day by day,cost to produce electrical energy increase and its the main factor why more [...]
Air-conditioner is one of equipment that used and popular in around the world to cooling our room,office or any space.Now in our market,air-conditioner have in many types and sizes.It depend on our application and types of space that we want use it. When install an air-conditioner,we want it running in more efficiency and enough capacity [...]
In electrical job scopes,PPE ( personal protection equipment ) is a one of important thing when perform a tasks to avoid an electric shock.It can cause the serious fatal and injury even death. This time i want share some information how to selecting an electric glove size correctly.It important because when we perform an electrical [...]
