Rapid development of industry and luxurious raise of living standard make the energy shortage a worldwide concern.  Even worse, much of the energy is wasted.  Energy consumed by induction motors is one of the vivid examples that a lot of energy is unnecessary wasted.  As early as 1977, NASA scientists already pointed out that an induction motor often consumes more energy than needed.  The load change of a motor can be big and rapid.  Therefore it is a challenging task to design a motor controller that not only can save energy but also can react to the rapid change of the load effectively.

In addition to the energy saving problem, how to lower the inrush current of a motor during the startup is also an important issue.  If a motor is started with full voltage, the large inrush current can affect the power network.  Therefore the use of soft starter to start a motor has become a popular demand.  Though there are many soft starters available in the market, it is important to point out that what is the best way to start a motor softly is often overlooked.  A good soft start should make the current rump up to a constant plateau and maintain at the plateau during the startup.  An idea motor controller should also provide protection features such as phase loss protection, over load protection, over high voltage and over low voltage protection, automatic bypass etc.

Since its inception, DIGITEK has focused its resources on developing energy saving and motor protection devices for induction motors.  With our strong multinational research and development team, we began to have our basic energy saving device available in the market.  Though, our products were quickly accepted in the market in a very short time, we understood the need to develop more specialized motor controllers for better applications.  Our first successful unit was that for the oil pump jack.  With the help of many oil companies worldwide, we had developed a special unit for oil pump jack. This unit is now widely used in many oil fields. 

We had then further developed a unit suitable for single-phase coolers and freezers.  This unit was designed by taking into account of the operational features of refrigeration compressors.  This unique unit can save energy more than 20%, depending on the design of the coolers and freezers.  The application of this unit is rapidly growing.  It not only helps saving energy, but also provides many protections to refrigeration compressors.  As a result, some of the traditional protection devices are not needed.  This design has patents from the United States and many other countries.  This unit can save energy, enhance ecology protection image, and strengthen market competition power.

DIGITEK-IIIGS is a three-phase general purpose motor controller with features including soft start, soft stop, energy saving, phase loss protection, low and high voltage protection, over current protection, remote motor start-stop control and external bypass.  The patent for this design is approved or under pending in many countries.  Our soft start and soft stop have very good adjustability.  Our soft start can make the current rump up to a constant plateau and maintain at the plateau during the startup. 

Based on this sophisticated system, we now have further developed a most efficient energy saving control system, DIGITEK-IIIAC, for three-phase medium and large size air compressors with air reservoir.  When the motor is running with air compressor loaded, DIGITEK-IIIAC saves energy according to the load of the motor.  When the motor is running with the compressor unloaded, instead of keeping the motor running as in the conventional case, DIGITEK-IIIAC stops the motor completely.  The soft start allows a compressor to start and stop frequently.  This design has patents from the United States and many other countries.

In addition to motor controllers described above, we have developed energy saver specifically for fluorescent light and HID light like mercury lamps, high pressure sodium lamps and metal halide lamps.  For power supply at rated voltage, this device can save energy 15 % or more.  With this energy saving device, DIGITEK-ILT, the luminosity is kept to that required by the lighting system designed.  It also prolongs the life span of the lighting devices. The patent for this design is approved or under pending in many countries.

Digitek Technology is a company committed to the development of best motor controllers.  In addition to motor controllers for general purpose, we also emphasize on motor controllers for specific applications in order to enhance the energy saving efficiency and motor protection capability.  We have strong research and development team, efficient production facilities and rapid growth on worldwide marketing network.