Types of Relay

In automation industries,relay is a common device used for control application.Basic operation of  electrical relay is a device that changes the state of a circuit in response to it being energized or de-energized by that or another circuit.

It function to open or close the circuit or contact and respond depend on signal that we gave it to the magnetic coil.It have normally open and normally close contact that we can choose when design the control circuit for our application.

For generally understanding,relay also may consider as a amplifier and controller.It only a small device in automation circuit but it have important roles to make our system running accordingly. read more

How to protect from surge voltage?

Each year many electrical equipment’s defected due to surge voltage from natural disaster like lightning or supply error.It very costly to replaced it back to normal system.

Theoretically single lightning strike produce 20,000 to 40,000 Ampere and about 200 Mega volts (MV) .It enough to generated a temperature about 4 times hotter than the surface of the sun.

In the market,some of surge protectors are designed to cut out  if a surge value exceeds 60,000 ampere to protected the sensitive equipment from defected. read more

Distribution substations

For electrical power distribution,substation is the one important component to serve,distributing and regulated an electricity to building,factory or private living area.

Normally substations have the several required equipment such as power transformers and the voltage-regulating device for converting the high incoming sub-transmission voltages to low voltage primary system and ensure it in specified voltage tolerances.

The others basic equipment in substations includes circuit breakers, switches, bus bars, shunt coil reactor, power factor correction capacitors, lightning arresters, read more

Definition of Surge voltage

What is the surge voltage?For our easy understanding,electrical surge is a sudden high pick out of voltage value in the system.It can happened in electrical power distribution and communications lines entering homes,factory, offices, and other facilities.

The surges voltage happened due to natural factor such as lighting or human error.It can effected and can cause serious damage for any unprotected electronic device that connected to the power or communication lines.

Electronic products that are especially vulnerable to surges include microprocessors or micro controllers, such as computers, TV, server system, cordless telephones, and inverter. read more

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.

As we known,DC motor types such as fractional-horsepower shunt, series, and compound DC motors can be started by connecting the motor directly to DC line voltage. read more

Thermal model protection for Soft starter

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 model.

This types provide more precise protection for electric motor and it more accurate and efficient.It only available for high end motor protection relay for conventional starter. read more

Types of soft starter

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 control system and easy to install and wiring to our application.

This time i want share some information about types of soft starter.These types is different because it depend on application and system design.Before we install a new soft starter to our application,we need to understand basic types of soft starter. read more