Adjust Procurement Posture for Motor Reliability and Hydrogen Projects

On motors larger than 75 kW, it is generally recommended that an insulated bearing be installed on the opposite end of the motor on which the shaft grounding device is installed, regardless of which style of shaft grounding is used. Table 1: Pros and cons of shaft grounding methods

No shaft grounding method is perfect, however, and grounding rings mounted externally tend to collect contaminants on their bristles, which may reduce their effectiveness. Grounding bearing isolators Grounding bearing isolators combine two technologies: a 2-part, noncontact isolation shield that uses a labyrinth design to prevent ingress of contaminants; and a metallic rotor and isolated conductive filament ring to divert shaft currents away from the bearings

A shaft ground is essentially a means to connect the turning rotor of the motor to earth ground via the frame of the motor. Adding a shaft grounding device to the motor prior to installation (or buying a motor with one preinstalled) can be a small price to pay when compared to the price tag of maintenance costs associated with bearing replacement, not to mention the high costs of downtime in a facility

The award leverages Duratec’s recent acquisitions in the Hunter Region, which establishes a local workforce, supply chain access and delivery capability in a critical energy corridor, enhancing the Group’s ability to self-perform and capture greater value across the project lifecycle. “The Hunter Valley Hydrogen Hub is an important project within Australia’s emerging hydrogen industry, and we are pleased to partner with Orica to support its delivery,” said Duratec Managing Director Chris Oates

The award leverages Duratec’s recent acquisitions in the Hunter Region, which establishes a local workforce, supply chain access and delivery capability in a critical energy corridor, enhancing the Group’s ability to self-perform and capture greater value across the project lifecycle

“This award reflects Duratec’s ongoing expansion into the energy and decarbonisation sector, building on our recently established presence in the Hunter Region and demonstrating our ability to deliver complex infrastructure projects through a combination of self-perform and local capability

Get the latest Process Technology magazine delivered FREE — print or digital

PDF Three kinds of artificial intelligence Cyber risk management for cyber-physical systems Ultrasonic and radar level technologies IO-Link and the role of the IO-Link Master Predictive maintenance: leveraging advanced diagnostics PDF December 2024/January 2025 Artificial intelligence: the fifth industrial revolution How can we manage our grid workload into the future?

0: Ignore at your peril Monitoring motor supply pays off Training: are the fundamentals being left behind?