Variable Speed Drives and Frequency Drives
- Input Conversion: Variable Fixed DeivesDs take fixed AC power and convert it to DC using a rectifier. VSDs for DC motors can use the DC power directly.
- Smoothing: The DC output is filtered by capacitors to create a smooth DC supply.
- Output Conversion: An inverter then changes the DC back to AC, but with variable frequency (VFD) or voltage (DC VSD) to control motor speed.
- Speed Control: By adjusting the frequency (VFD) or voltage (DC VSD), the motor's speed is precisely controlled.
Discover Altivar HVAC variable speed drives designed to optimise solutions of HVAC machines and management in buildings. They provide reliability, safety, efficiency, and fast deployment in applications such as pumps (secondary pumps, variable primary pumps, pressure booster pumps), fans (air handling units, supply and exhaust fans, condenser fans), compressors (chillers, rooftops, heat pumps).
Driving sustainability forward with Altivar Variable Speed Drives
Manage motor control applications up to 20 MW with products ranging from compact products to custom-engineered solutions.
Soft starters protect motors and equipment from high inrush currents, electrical surges, and mechanical shock during start-up. By reducing stress, they cut downtime, extend lifespan, and lower costs.
What are Soft Starters?
- Motor control devices that provide smooth motor acceleration and deceleration.
- Minimize electrical and mechanical shocks, ensuring reliable performance.
- Extend equipment life while improving operational efficiency.
Schneider Electric’s soft starters include a comprehensive range for industrial and commercial applications. Designed with features including torque management, power factor adjustment, and self-monitoring that enhance energy efficiency and asset protection. Backed by Schneider Electric’s global expertise in energy and automation, these solutions deliver trusted technology that businesses can depend on.
