Water & Wastewater

Stop Rebuilding Infrastructure Start modernizing them

Clean Power VFD technology designed for municipal reliability, long cable runs, and simple retrofits

Advanced VFD Technology for Pump Applications in

  • Booster pump stations
  • Lift stations
  • Clean water distribution pumps
  • Wastewater treatment pumps
  • Submersible pumps with long cable runs
  • 600V municipal systems

Engineered for Municipal Pump Stations

Compact by Design Fits Inside Existing Panels

Designed for retrofit environments where space is limited — no bulky harmonic filters or dv/dt cabinets required.

Built for Long Cable Runs Reliable Over Distance

Stable performance over long and buried motor cables — without replacing underground infrastructure.

Advanced Motor Protection Extend Motor & Bearing Life

Near-sinusoidal output reduces electrical stress, bearing currents, and insulation wear caused by traditional PWM drives.

Seamless System Integration Ready for SCADA & PLC

Native communication protocols allow fast integration into existing municipal control systems.

Municipal Retrofit Example:

Pump Station Modernization,
600V System

A municipal pump station required modernization by replacing a traditional across-the-line contactor with variable speed control — without expanding the electrical room or disrupting existing infrastructure.

Project Objectives

  • Improve overall energy efficiency
  • Increase pump and motor reliability
  • Maintain seamless PLC integration
  • Operate on existing 600V, 3-phase supply

Result Achieved

  • Significant energy reduction
  • Less than 5% harmonic distortion
  • Noticeably quieter operation
  • Installation completed in under an hour
  • Built-in Modbus TCP integration
  • Reduced operational and maintenance costs

Field Feedback

The municipal engineer summarized the outcome:

“It’s not just quieter — it’s less stress, higher efficiency, and fewer long-term risks.”

Long-Cable Retrofit Example

Submersible Pump, 1300+ ft Buried Cable

A municipality faced a challenging retrofit condition:

  • Over 1,300 feet of buried and aging cable between the drive and a submersible pump
  • A previous conventional PWM VFD repeatedly faulting due to dv/dt stress and reflected wave overvoltage
  • Underground cable replacement deemed impractical and cost-prohibitive


Project Objectives
Implement reliable variable-speed control and improve energy efficiency — without modifying the existing infrastructure

Result Achieved

  • Approximately 40% energy savings
  • Zero faults or nuisance trips
  • No harmonic hum
  • No additional dv/dt filters or output reactors
  • No infrastructure change required
  • Reliable operation on long cable lengths

Field Feedback

“It’s quiet, balanced, and works perfectly. We didn’t have to change anything.”

Why This Matters for Municipal Utilities

Protects the Electrical Infrastructure Cleaner Grid Impact

Low harmonic distortion reduces stress on transformers, generators, switchgear, and sensitive electronic equipment — helping utilities maintain system stability and power quality compliance.

Reliable Over Distance Long Cable Confidence

Engineered to support extended motor cable lengths without requiring external dv/dt filters, output reactors, or mitigation cabinets — even in buried installations.

Extends Motor Life Reduced Electrical & Mechanical Stress

Near-sinusoidal output minimizes reflected wave overvoltage, common-mode voltage, and bearing currents — reducing insulation wear and premature motor failures.

Lower Lifecycle Costs

Fewer components to maintain. Less heat. Fewer nuisance faults.

Faster, Simpler Retrofits Minimal Disruption

Compact architecture and built-in harmonic mitigation allow straightforward replacement of contactors or legacy VFDs, reducing downtime and commissioning complexity.

Lower Total Cost of Ownership Fewer Components. Less Heat. Fewer Faults.

Eliminating external filters reduces installation cost, panel space requirements, maintenance burden, and nuisance trips — improving long-term operational reliability.

Planning a Water Infrastructure Upgrade?

If you’re evaluating options to:

  • Convert across-the-line contactors to efficient variable speed control
  • Reduce harmonic distortion without adding external filters
  • Operate reliably over long or buried motor cable runs
  • Extend pump and motor lifespan
  • Modernize aging municipal pump stations without expanding infrastructure

SmartD Clean Power VFD technology delivers:

  • lower-risk path to modernization
  • improved efficiency, reliability
  • and compliance while preserving existing assets

This post is also available in: Français