Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
White Papers

AEGIS® Rings Eliminate Bearing Damage at Water Treatment Plant

Dan Biby learned it all the hard way. An ordeal concerning several inverter-controlled pump motors with bearing damage made him a believer in the need for shaft grounding. Killer Shaft Voltages Although destructive currents can occur in any motor, they are more common in motors controlled by inverters, also known as variable frequency drives (VFDs). VFDs can save 30% or more in energy costs, but, they induce motor-shaft voltages that damage bearings. In fact, the cost of repairing or replacing failed motor bearings can wipe out any savings that a VFD yields and severely diminish the reliability of an entire system. Contractors and consulting-specifying engineers (CSEs) end up with unhappy customers, who soon discover that most warranties do not cover electrical bearing damage. This typically leads to finger pointing and the CSE and end user getting stuck with repair costs.

Download below to read more

Please fill out the following form to access this premium content

Privacy Policy:
Empowering Pumps & Equipment is committed to protecting and respecting your privacy, and we’ll only use your personal information to administer your account and to provide the products and services you requested from us and/or our partner. We may also send you our eNewsletter, of which you can unsubscribe and/or customize in your email preferences. By providing your information including email and clicking the button below, I agree to the Terms and Conditions and Privacy Policy, provide my electronic signature, and consent to receive the product/service requested. Consent is not a condition of any purchase. You may opt out any time.