Field Services and Support
Shaft Grounding Installation & Testing
Shaft grounding installations protect electric motor bearings and motor components from electrical erosion and extend equipment longevity with non-invasive devices.
Pump Dynamics delivers certified installation and testing services across Washington, Oregon, California, and Arizona for industrial and high-tech clients.
Grounding verification through voltage testing ensures systems comply with OEM and industry standards for safe, efficient operation.
Shaft grounding installation and testing services protect motors, pumps, and rotating equipment from electrical damage caused by stray shaft voltage.
The process involves installing grounding rings, brushes, or copper braids on motor shafts to safely redirect electrical currents away from sensitive bearings and components. These devices are often easily added and non-invasive to the system. Each installation is followed by precision testing using voltage probes or oscilloscopes to confirm that current flow is effectively grounded and no residual voltage remains present on the shaft surface.
When motors are controlled by variable frequency drives (VFDs), they often generate high-frequency circulating currents. Without proper grounding, these currents pass through bearings, causing pitting, fluting, and premature failure. Shaft grounding systems eliminate this destructive path, extending equipment life, preventing unplanned downtime, reducing maintenance costs, and improving reliability. This is especially important in continuous-duty or high-precision environments such as semiconductor manufacturing, power generation, and wastewater treatment.
Pump Dynamics provides advanced shaft grounding installation and testing across Washington, Oregon, California, and Arizona. Their technicians are certified in high-frequency grounding system installation, including AEGIS® and Shaft Grounding Systems, and can perform both initial setup and periodic validation. Using current measurement tools and state-of-the-art diagnostic procedures, they ensure every installation meets OEM and IEEE best practices. Customers trust Pump Dynamics for their ability to integrate grounding solutions into new or existing motor systems, keeping operations safe, efficient, and compliant with modern electrical standards.
Industries We Serve
FAQS
Shaft grounding systems protect electric motor bearings by redirecting harmful stray currents safely to ground, preventing premature bearing failure and downtime.
It is especially important to install grounding systems on motors powered by variable frequency drives (VFDs) since these drive types generate high-frequency voltages that can damage equipment over time.
A technician measures shaft voltage using specialized probes while the motor is running. A properly installed system will show minimal or no measurable shaft voltage, confirming safe discharge to ground.
Yes, both split-ring and solid-ring designs can be installed on in-service motors. Pump Dynamics offers retrofit installations that integrate seamlessly with existing drive and grounding configurations.
