Protecting VFD-Driven Motors in
- Rooftop HVAC systems
- Indoor or outdoor air handling units
- OR and unit ventilation fans
- Fan walls
- Air or water cooled chillers
- Chilled water pumps
- Condensing fans
- Water/wastewater pumps
- Sump pumps
- Trash compactors
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Saving Energy is Important...
Many hospitals are looking for ways to reduce energy consumption. One of the most promising involves the use of variable frequency drives (VFDs) to control the speed of HVAC motors. In fact, in such applications. VFDs have been shown to reduce energy consumption by 20 to 30%. But, while energy savings are important, they must never jeopardize patient safety.
Protecting Patient Safety is Paramount
When dealing with today’s advanced medical procedures, the loss of vital equipment could mean the loss of a patient’s life. So, for
operating rooms, labs, and quarantine areas, the reliability of
ventilation equipment is critically important in safeguarding
sterility and preventing infection. In an effort to ensure the quality
of vital operating room and intensive care environments and 100%
uptime of critical equipment, hospitals and healthcare facilities are
looking for ways to prevent motor failures by protecting their
bearings from VFD-induced electrical damage.
The Need for Shaft Grounding on
VFDs can damage the motors they control. They induce currents
on motor shafts that discharge through the bearings, causing
pitting, fluting, and catastrophic motor failure. Without bearing
protection, any savings from the use of VFDs can be quickly
wiped out by the cost of replacing motors and by system
downtime. More importantly, such bearing failures in healthcare
facilities can put patients at risk.
Proven, Long-Term Bearing Protection
By diverting bearing currents safely to ground, AEGIS™ SGR Shaft
Grounding Rings ensure the reliable, long-term operation of VFD driven
motor systems, locking in energy savings and making these
systems truly sustainable and truly green!