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Technical Services

From panel construction to power surveys, NOVA offers you a broad spectrum of technical capabilities and expertise.

Drive Systems Preventative Maintenance

Besides keeping your drive systems performing at peak levels, regularly scheduled preventative maintenance can detect problem areas and save you costly repairs and downtime. Our comprehensive preventative maintenance inspection can include:

Visual Inspection
  • Remove dust and debris from components and heatsinks
  • Inspect wiring for loose connections
  • Check external blowers and fans for proper operation
Test Motor Control Subsystem
  • Check overcurrent protection
  • Inspect and test dynamic breaking resistors
  • Test insulation resistance of motors
Test Electronic Subsystem
  • Check diagnostics
  • Document and verify all drive parameters
  • Check and calibrate panel meters
  • Check velocity feedback circuits
Test Power Subsystem
  • Check each phase voltage
  • Check control power supplies
  • Measure phase current

Electrical Power Surveys

A NOVA power quality analysis survey can help you detect the source of your intermittent power problems, including:

  • Current and voltage imbalances
  • Phase impedances and voltage sags
  • Harmonics and disturbances

During the survey, data-monitoring devices can record for one hour or up to one week, depending on the samples that need to be taken. Information about current and voltage is gathered simultaneously from all three phases, neutral and ground, and typically includes:

  • True RMS Voltage
  • Max. Peak to Peak Voltage
  • True RMS Current
  • Max. Peak to Peak Current
  • Fundamental RMS Voltage
  • Voltage Angle
  • Fundamental RMS Current
  • Current Angle
  • Fundamental Impedance
  • Impedance Angle
  • Voltage Imbalance
  • Current Imbalance
  • Total Voltage Harmonics
  • Total Current Harmonics
  • True VA
  • True VARS
  • True Watts
  • Distortion
  • True Power Factor
  • Fundamental VA
  • Fundamental Watts
  • Fundamental VARS
  • Fundamental Power Factor

Abnormal events are also captured in the database and saved for later review.
Using data extracted from the analysis, our NOVA technician can then identify specific solutions to clean your facility's power.