FREEIntroduction to Uptime Elements Reliability Framework and Asset Management System

What has happened to your electric motor:

1. The bearings have been exposed and will have started rusting;
2. The grease will be contaminated and may have separated;
3. Shaft, rotor and other rotating components have started rusting;
4. Contaminants have come into contact with the insulation system of the electrical conductors generating a condition that will degenerate or short if electrical energy is applied;
5. Stator mechanical components have rusted;
6. Let alone water in conduit, contacts, controls, etc.

Minimum necessary work:

If possible, send the motor in for reconditioning, clean, dip and bake. This involves steam cleaning, drying in an oven, bearings replaced, mechanical surfaces checked and polished, rotor dried in oven, varnish insulation added to the existing insulation system in order to restore it. Also, will identify problems that pre-existed.

With Babbitt bearings, the oil will be replaced and flushed. With ball and roller bearings, they will be replaced and grease replaced.

If you are not able to remove the motor from its location, disassemble the machine and remove the rotor. Clean the stator with clean water until all contaminants are removed. Set up an insulated enclosure around the motor and, using either high wattage spot lights or space heaters (keep in mind all safety rules and perform at your own risk), allow the temperature to approach 200 degrees F at a rate of 20 degrees F per hour (this prevents moisture from flashing to steam and damaging the insulation system). Perform insulation resistance readings periodically until the insulation resistance exceeds 500 MegOhms, or more.

For information on how to manage systems following flooding, contact howard@motordoc.nethoward@motordoc.net. T-Solutions engineers have the experience necessary to assist you in coordinating your maintenance and reconditioning of facilities and machinery.
Dealing with Contaminated Electric Motors

Following this article, EASA responded with these additional recommendations for reconditioning motors that have been submerged in salt water.

Chuck Yung of EASA (The Electrical Apparatus Service Association), a recipient of the MDMH newsletter, responded and suggested that I publish a link to three EASA tech notes on flushing Salt Water from motors, Building a portable drying oven and Insulation Resistance Testing.

These can be found on the EASA Home Page: http://www.easa.com

Howard W Penrose, Ph.D.

Howard W Penrose, Ph.D., CMRP, is the President of MotorDoc LLC, the Executive Vice President of MotorSight Corp, Treasurer of SMRP and Web Editor-in-Chief of the IEEE Dielectrics and Electrical Insulation Society. Howard has over 30 years in the electric machinery repair, design, materials, energy and systems industry and is an award-winning author. www.motordoc.com

Upcoming Events

August 8 - August 10, 2023

Maximo World 2023

View all Events
banner
80% of Reliabilityweb.com newsletter subscribers report finding something used to improve their jobs on a regular basis.
Subscribers get exclusive content. Just released...MRO Best Practices Special Report - a $399 value!
DOWNLOAD NOW
Internet of Things Vendors Disrupting the Asset Condition Management Domain at IMC-2022

Internet of Things Vendors Disrupting the Asset Condition Management Domain at IMC-2022 The 36th International Maintenance Conference collocated with the RELIABILITY 4.0 Digital Transformation Conference [East]

Asset Management Technology

The aim of the Asset Management technology domain is to assure that IT/OT systems are focused on creating the value from the assets and that the business can deliver to achieve organizational objectives as informed by risk.

TRIRIGAWORLD AWARDS at MaximoWorld 2022

TRIRIGAWORLD AWARDS honors excellence in space optimization and facility management, A Reliabilityweb.com event to further advance asset management

IMC-2022 Who's Who: The World's Best Run Companies

The International Maintenance Conference (IMC) provides a fresh, positive community-based curated experience to gain knowledge and a positive perspective for advancing reliability and asset management through people, their managers, the strategy, the processes, the data and the technology.

Uptime Elements Root Cause Analysis

Root Cause Analysis is a problem solving method. Professionals who are competent in Root Cause Analysis for problem solving are in high demand.

Reliability Risk Meter

The asset is not concerned with the management decision. The asset responds to physics

Why Reliability Leadership?

If you do not manage reliability culture, it manages you, and you may not even be aware of the extent to which this is happening!

Asset Condition Management versus Asset Health Index

Confusion abounds in language. Have you thought through the constraints of using the language of Asset Health?

Seven Chakras of Asset Management by Terrence O'Hanlon

The seven major asset management chakras run cross-functionally from the specification and design of assets through the asset lifecycle to the decommissioning and disposal of the asset connected through technology

Reliability Leader Fluid Cleanliness Pledge

Fluid Cleanliness is a Reliability Achievement Strategy as well as an asset life extension strategy