CHI Electric

A Smart Solution To Your Power Systems (714) 758-1767

VFD testing and Analysis

Solid state electronic AC motor drives are becoming increasingly more commonplace within industrial and commercial facilities. They control air handlers, chillers, pumps, conveyors, machine tools, mixers, draw lines, and numerous other applications once considered either strictly DC applications, or constant speed.

The increased usage of variable-frequency drives (VFDs) presents the maintenance and service community with both the opportunity and challenge of learning to maintain, troubleshoot, and operate this equipment.
Motors powered by variable frequency (VFD) or variable speed (VSD) drives require additional testing and analysis to ensure the high voltage stresses are not weakening the motorís insulation system or the drive components. When a motor drive goes down, production often grinds to a halt. You need a smart and expert engineer to find and resolve the problem quickly.
FVD Testing, FVD troubleshooting
VFD troubleshooting and testing
CHI Electric offers a comprehensive package of on-site drive services performed by experienced and trained field engineers.

Our FVD Testing services include:
Emergency On-Site Drive Service
Drive Start-Up Service including training & harmonic analysis
Drive Preventive Maintenance / Calibration
Troubleshooting VFD Problems
FVD testing will include:
AC input line voltage.
AC output load voltage.
Line current.
Load current.
Frequency output to the motor.
DC bus voltage.
Program check and analysis