Variable Speed Drives and Frequency Drives
VFDs (Variable Frequency Drives) and VSDs (Variable Speed Drives) are devices that control an electric motor's speed. VFDs work specifically with AC motors by adjusting the frequency of the electricity to control speed. VSDs can handle both AC and DC motors, using voltage adjustments for DC motors.
Working Principle:
- Input Conversion: VFDs take fixed AC power and convert it to DC using a rectifier.
- Smoothing: The DC output is filtered by capacitors to create a smooth DC supply.
- Output Conversion: An inverter changes DC back to AC with variable frequency to control motor speed.
- Speed Control: By adjusting the frequency or voltage, the motor's speed is precisely controlled.
Low Voltage AC Process Drives
View AllIIoT-ready variable speed drives for fluid management and demanding applications from 0.75kW to 800kW.
Low Voltage AC Machine Drives
View AllSimple and reliable variable speed drives specifically designed for smart machines and OEM applications.
Low Voltage AC Building Drives
View AllHVAC variable speed drives designed to optimise HVAC machines and management in buildings.
Low Voltage AC Industry-Specific Drives
View AllSmart variable speed drives for specialized applications including solar-powered pump systems.
Soft Starters
View AllMotor control devices that provide smooth motor acceleration and deceleration, minimizing electrical and mechanical shocks.
Medium Voltage AC Process Drives
View AllMedium voltage variable speed drives from 2.4 to 13.8 KVA for high power applications up to 20MW.
Drives and Motor Control Software
View AllSoftware for controlling the speed and torque of electric motors, enabling precise and efficient operation.
Low Voltage AC General Purpose Drives
View AllVariable speed drives that adjust motor speed throughout running cycles for complete control of electric motor applications.