VFD Panel
POLARIS VFD Panels are engineered to control the speed and torque of electric motors using Variable Frequency Drives, delivering significant energy savings and improved process control in industrial applications. By varying the frequency and voltage supplied to a motor, VFD Panels allow precise speed regulation — reducing energy waste in pumps, fans, compressors, blowers, and conveyors that run at partial loads. POLARIS integrates multi-brand VFDs from Siemens, ABB, Danfoss, Schneider, and Delta into custom-designed panel enclosures with proper ventilation, harmonic filters, bypass circuits, and protection devices. Each panel is designed with the correct input/output reactor sizing, motor cable shielding provisions, and earthing to minimise EMI and ensure reliable VFD operation. POLARIS VFD Panels are widely used in water treatment, HVAC, chemical, textile, and manufacturing industries.
Key Features
- Precise motor speed and torque control using Variable Frequency Drive technology.
- Integration of Siemens, ABB, Danfoss, Schneider, and Delta VFDs as per project specifications.
- Input/output line reactors and harmonic filters to reduce power quality disturbances.
- Manual bypass circuit for direct motor operation during VFD maintenance or fault conditions.
- Forced ventilation with fan and filter arrangement for VFD thermal management.
- Remote speed reference input via potentiometer, 4-20mA, or fieldbus communication.
- Motor protection features including overload, over-temperature, phase loss, and stall protection.
- Motorised input contactor and output contactor for controlled VFD switching.
- IP42 to IP55 rated panel enclosures with powder-coated finish for industrial environments.
- Designed for water treatment, HVAC, chemical plants, and material handling applications.
Frequently Asked Questions
What is a VFD Panel and how does it save energy in industrial operations?
A VFD Panel contains a Variable Frequency Drive that controls motor speed by adjusting supply frequency. Since power consumption of motors like pumps and fans is proportional to the cube of speed, even a 20% speed reduction can save up to 50% energy — making VFD Panels one of the most effective energy-saving investments in industrial facilities.
Which VFD brands does POLARIS use in panel manufacturing?
POLARIS works with leading VFD brands including Siemens, ABB, Danfoss, Schneider Electric, and Delta. The VFD brand and model are selected based on motor rating, control requirements, communication protocol, and the client's preferred brand.
Does a POLARIS VFD Panel include a bypass circuit?
Yes. POLARIS VFD Panels are typically designed with a manual or automatic bypass circuit that allows the motor to run directly on-line (DOL) when the VFD is under maintenance or in a fault condition. This ensures uninterrupted motor operation for critical process loads.
How does POLARIS address harmonic distortion in VFD Panels?
POLARIS incorporates input line reactors, output reactors, and active/passive harmonic filters in VFD Panels to minimise harmonic distortion generated by the drives. This protects other equipment on the same electrical network and ensures compliance with power quality standards.
For which applications are POLARIS VFD Panels most suitable?
POLARIS VFD Panels are ideal for pump speed control, fan and blower control, conveyor speed management, compressor control, HVAC systems, and any industrial application where variable load operation and energy efficiency are priorities.