Energy-saving Controller Inc. specializes in manufacturing controllers for the field of environment measurement and refrigerating and air-conditioning and stands out in the energy-saving solution market starting with the industrial air compressor energy-saving controller VSD+. The inverter controlling type that minutely controls the number of rotations of the compressor motor with a frequency is one of the qualified energy-saving technologies that are being rapidly introduced to home appliances.
Dotech’s VSD+ is a device consuming the most electricity in the general manufacturing facility. The key point of the high efficiency air compressor is the compressor control applying the inverter. It is a qualified energy-saving technology with rapidly increasing usage in the air compressor field as well as the refrigerating and air-conditioning field.
This controller can save power consumption significantly by properly adjusting the number of rotations of the motor of the air compressor suitable for the usage of compressed air by controlling the inverter. The VSD+ series is the outer mounted controller maximizing energy efficiency by changing the control type (Y-∆) to the inverter control oriented VSD (Variable Speed Control) type by installing on the general industrial air compressor. Because most existing air compressors cannot control the speed of the internal motor, it cannot avoid unnecessary energy consumption as it is operating at almost 100% output regardless of the usage of air to maintain the mobility stand-by status.
On the other hand, if applying the VSD+, the device’s operation efficiency can be increased significantly by finely controlling the number of rotations of the compressor according to the usage of air in real-time. In particular, for the fields where no-load operating time is long or load and no-load operating is working frequently in turn, up to energy can be saved up to 30~40%.
Calculating the annual electricity rate for the case of operating the 100-horsepower air compressor for 8,000 hours after installing the VSD+, approximately 19.7 million won and 19,008 ton CO2 (based on 75kW, load factor 60%, electricity charge 120 won) can be saved compared to pre-installation. It can succeed in killing many birds with one stone, including reduction of electricity charges, extension of life of major parts, reduction of CO2, etc., by removing unnecessary operation of the device. Under ordinary circumstances, the installation fee can be recovered in 1~2 years with energy-saving costs. | Blog Magazine of korean-machinery, brands and Goods