Variable Frequency Inverter
Variable Frequency Inverter
Variable Frequency Inverter controls the speed and torque of an AC motor by converting fixed frequency and voltage input to a variable frequency and voltage output. System performance is greatly improved by controlling speed to precisely match the realtime load.
Besides system optimisation and motor efficiency, VFD motor control is one of the 3 main areas to achieve energy savings. Savings will depend on the nature and variability of the load and total operating hours. Where process output requirements vary by 30% or more, matching the load with a VFD can reduce energy use significantly.
Motor systems equipped with a VFD can bring benefits including…
- Reduce maximum power demand
- Reduce stress on system components
- Accurate control of process signals… pressure, flow, temperature etc
- Improved safety and amenity, through reduced heat and noise levels
- Integration of VFD control with building management systems (BMS)
Seamless Process Automation Limited has a wealth of knowledge across all the leading variable frequency inverter brands. We take pride in being experts in the integration of variable frequency inverters within a wide range of industrial and commercial applications.
Popular brands of VFDs we supply across Kenya are
Variable frequency inverters (VFDs) work by varying the AC electrical input frequency to control drive speed. They are preferred due to their accurate speed variability from zero rpm to over 100% rpm of the rated speed. VFDs also enable motor control in either direction.
VFDs may be of little benefit where precise motor speed control does not assist the production process, or where hours of reduced demand are few. VFDs are also not recommended for applications in which slowing down the machine causes operating problems, such as poor cooling.
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3kW Variable Speed Drive Schneider Electric Altivar 630
Add to cart3kW Variable Speed Drive
Product Range Altivar Process ATV600 Product or component type Variable speed drive Product destination Asynchronous motors Synchronous motors Type of cooling Forced convection Supply frequency 50…60 Hz – 5…5 % Network number of phases 3 phases [Us] rated supply voltage 380…480 V – 15…10 % Motor power 3kW (normal duty) 2.2kW (heavy duty) Line current 5.8 A at 380 V (normal duty) 4.5 A at 380 V (heavy duty) Speed drive output frequency 0.1…599 Hz Discrete input logic 16 preset speeds Communication port protocol Modbus TCP Ethernet Modbus serial Output voltage <= power supply voltage -
2.2kW Variable Speed Drive Schneider Electric Altivar 630
Add to cart2.2kW Variable Speed Drive
Product Range Altivar Process ATV600 Product or component type Variable speed drive Product destination Asynchronous motors Synchronous motors Type of cooling Forced convection Supply frequency 50…60 Hz – 5…5 % Network number of phases 3 phases [Us] rated supply voltage 380…480 V – 15…10 % Motor power 2.2kW (normal duty) 1.5kW (heavy duty) Line current 4.3 A at 380 V (normal duty) 3.1 A at 380 V (heavy duty) Speed drive output frequency 0.1…599 Hz Discrete input logic 16 preset speeds Communication port protocol Modbus TCP Ethernet Modbus serial Output voltage <= power supply voltage -
1.5kW Variable Speed Drive Schneider Electric Altivar 630
Add to cart1.5kW Variable Speed Drive
Product Range Altivar Process ATV600 Product or component type Variable speed drive Product destination Asynchronous motors Synchronous motors Type of cooling Forced convection Supply frequency 50…60 Hz – 5…5 % Network number of phases 3 phases [Us] rated supply voltage 380…480 V – 15…10 % Motor power 1.5kW (normal duty) 0.75kW (heavy duty) Line current 3 A at 380 V (normal duty) 1.7 A at 380 V (heavy duty) Speed drive output frequency 0.1…599 Hz Discrete input logic 16 preset speeds Communication port protocol Modbus TCP Ethernet Modbus serial Output voltage <= power supply voltage -
0.75kW Variable Speed Drive Schneider Electric Altivar 630
Add to cart0.75kW Variable Speed Drive
Product Range Altivar Process ATV600 Product or component type Variable speed drive Product destination Asynchronous motors Synchronous motors Type of cooling Forced convection Supply frequency 50…60 Hz – 5…5 % Network number of phases 3 phases [Us] rated supply voltage 380…480 V – 15…10 % Motor power 0.75kW (normal duty) 0.37kW (heavy duty) Line current 1.5 A at 380 V (normal duty) 0.9 A at 380 V (heavy duty) Speed drive output frequency 0.1…599 Hz Discrete input logic 16 preset speeds Communication port protocol Modbus TCP Ethernet Modbus serial Output voltage <= power supply voltage -
90kW Variable Speed Drive Schneider Electric Altivar 630
Add to cart90kW Variable Speed Drive
Product Range Altivar Process ATV600 Product or component type Variable speed drive Product destination Asynchronous motors Synchronous motors Type of cooling Forced convection Supply frequency 50…60 Hz – 5…5 % Network number of phases 3 phases [Us] rated supply voltage 380…480 V – 15…10 % Motor power 90kW (normal duty) 75kW (heavy duty) Line current 152.6 A at 380 V (normal duty) 134.3 A at 380 V (heavy duty) Speed drive output frequency 0.1…599 Hz Discrete input logic 16 preset speeds Communication port protocol Modbus TCP Ethernet Modbus serial Output voltage <= power supply voltage -
75kW Variable Speed Drive Schneider Electric Altivar 630
Add to cart75kW Variable Speed Drive
Product Range Altivar Process ATV600 Product or component type Variable speed drive Product destination Asynchronous motors Synchronous motors Type of cooling Forced convection Supply frequency 50…60 Hz – 5…5 % Network number of phases 3 phases [Us] rated supply voltage 380…480 V – 15…10 % Motor power 75kW (normal duty) 55kW (heavy duty) Line current 131.3 A at 380 V (normal duty) 98.9 A at 380 V (heavy duty) Speed drive output frequency 0.1…599 Hz Discrete input logic 16 preset speeds Communication port protocol Modbus TCP Ethernet Modbus serial Output voltage <= power supply voltage -
55kW Variable Speed Drive Schneider Electric Altivar 630
Add to cart55kW Variable Speed Drive
Product Range Altivar Process ATV600 Product or component type Variable speed drive Product destination Asynchronous motors Synchronous motors Type of cooling Forced convection Supply frequency 50…60 Hz – 5…5 % Network number of phases 3 phases [Us] rated supply voltage 380…480 V – 15…10 % Motor power 55kW (normal duty) 45kW (heavy duty) Line current 97.2 A at 380 V (normal duty) 81.4 A at 380 V (heavy duty) Speed drive output frequency 0.1…599 Hz Discrete input logic 16 preset speeds Communication port protocol Modbus TCP Ethernet Modbus serial Output voltage <= power supply voltage -
45kW Variable Speed Drive Schneider Electric Altivar 630
Add to cart45kW Variable Speed Drive
Product Range Altivar Process ATV600 Product or component type Variable speed drive Product destination Asynchronous motors Synchronous motors Type of cooling Forced convection Supply frequency 50…60 Hz – 5…5 % Network number of phases 3 phases [Us] rated supply voltage 380…480 V – 15…10 % Motor power 45kW (normal duty) 37kW (heavy duty) Line current 79.8 A at 380 V (normal duty) 67.1 A at 380 V (heavy duty) Speed drive output frequency 0.1…599 Hz Discrete input logic 16 preset speeds Communication port protocol Modbus TCP Ethernet Modbus serial Output voltage <= power supply voltage -
37kW Variable Speed Drive Schneider Electric Altivar 630
Add to cart37kW Variable Speed Drive
Product Range Altivar Process ATV600 Product or component type Variable speed drive Product destination Asynchronous motors Synchronous motors Type of cooling Forced convection Supply frequency 50…60 Hz – 5…5 % Network number of phases 3 phases [Us] rated supply voltage 380…480 V – 15…10 % Motor power 37kW (normal duty) 30kW (heavy duty) Line current 66.2 A at 380 V (normal duty) 54.8 A at 380 V (heavy duty) Speed drive output frequency 0.1…599 Hz Discrete input logic 16 preset speeds Communication port protocol Modbus TCP Ethernet Modbus serial Output voltage <= power supply voltage -
30kW Variable Speed Drive Schneider Electric Altivar 630
Add to cart30kW Variable Speed Drive
Product Range Altivar Process ATV600 Product or component type Variable speed drive Product destination Asynchronous motors Synchronous motors Type of cooling Forced convection Supply frequency 50…60 Hz – 5…5 % Network number of phases 3 phases [Us] rated supply voltage 380…480 V – 15…10 % Motor power 30kW (normal duty) 22kW (heavy duty) Line current 53.3 A at 380 V (normal duty) 40.5 A at 380 V (heavy duty) Speed drive output frequency 0.1…599 Hz Discrete input logic 16 preset speeds Communication port protocol Modbus TCP Ethernet Modbus serial Output voltage <= power supply voltage -
22kW Variable Speed Drive Schneider Electric Altivar 630
Add to cart22kW Variable Speed Drive
Product Range Altivar Process ATV600 Product or component type Variable speed drive Product destination Asynchronous motors Synchronous motors Type of cooling Forced convection Supply frequency 50…60 Hz – 5…5 % Network number of phases 3 phases [Us] rated supply voltage 380…480 V – 15…10 % Motor power 22kW (normal duty) 18.5kW (heavy duty) Line current 39.6 A at 380 V (normal duty) 34.1 A at 380 V (heavy duty) Speed drive output frequency 0.1…599 Hz Discrete input logic 16 preset speeds Communication port protocol Modbus TCP Ethernet Modbus serial Output voltage <= power supply voltage -
18kW Variable Speed Drive Schneider Electric Altivar 630
Add to cart18kW Variable Speed Drive
Product Range Altivar Process ATV600 Product or component type Variable speed drive Product destination Asynchronous motors Synchronous motors Type of cooling Forced convection Supply frequency 50…60 Hz – 5…5 % Network number of phases 3 phases [Us] rated supply voltage 380…480 V – 15…10 % Motor power 18.5kW (normal duty) 15kW (heavy duty) Line current 33.4 A at 380 V (normal duty) 27.7 A at 380 V (heavy duty) Speed drive output frequency 0.1…599 Hz Discrete input logic 16 preset speeds Communication port protocol Modbus TCP Ethernet Modbus serial Output voltage <= power supply voltage
