Star Delta completed wiring diagram The most active post in Electrical Engineering Centre blog is Star delta starter and Star Delta motor connection.I received many comments and request for Star Delta circuit diagram. So this time i want share my simple star delta circuit diagram completed with power and control line circuit.I hope it can [...]
DC motor starting information. 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 [...]
Motor protection is the one of important criteria that we must consider when design the application to avoid serious damage or injury. Normally we used thermal overload relay to protect electric motor from overload current problem.But if we used soft starter to driven our motor application,the suitable types of protection is using the motor thermal [...]
Different types of Soft Starter controlled. Soft Starter is the common application for electric motor control driven for industry.It efficient motor control and the application is user friendly. Soft starter now more advance technologies and can replaced conventional motor starter such as star delta starter,auto transformer or Direct Online starter.It already built in the motor [...]
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 [...]
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 [...]
NEC Calculations for overload relay. Sizing for overload is important to avoid serious damage for electrical application such as motor starter,machinery or others electrical equipment.According to NEC,the general requirement for overload sizing be set around 115% or 125% from full load ampere. For calculation of overload sizing,it depend on the motor full load ampere current [...]
When we design or replaced the magnetic contactor for motor starter or for others application,the important point is how to sizing the size of magnetic contactor.This is critical point because if we not sizing properly,it can cause a serious damage and our application maybe failure to perform in perfect condition. This time i want shared [...]
