July 15, 2019
In part 3 of this case study, Todd Hatfield will be discussing how HECO re-engineered the electrical and mechanical design of the surplus motor to match the 5500HP, 13,200v original motor. This 13 minute presentation will go over: On-site laser measurements using FARO technology Determining challenges such as How the spare motor would fit into …
July 11, 2019
For part two of the series, Todd Hatfield will be reviewing the dismantled surplus motor and explaining some of the on-site findings for the 5500HP , 13,200v, Synchronous Motor. In this video segment, you will see: The replacement motor’s shorting ring and it’s unique placement on the motor Data collected on the replacement motor’s stator and rotor …
July 9, 2019
The video below is a segment from an hour long presentation given by Todd Hatfield, Senior Electrical Engineer at HECO – All Systems Go, at the 2018 Reliability, Process, and Maintenance (RPM) Symposium. This is the first of an 8 part article series that will be coming out twice a week over a 4 week …
September 27, 2018
Time is money. When an electric motor is out for repair it can take days, weeks, or months to get it back. What should your expectation be? What are they even doing with the motor while its gone, why does it take this long? We feel a better question to ask is: Does a quick …
April 11, 2017
When an electric motor fails, a plant must make decisions in a timely manner, but the decisions made can have a major impact to reliability in the long run. Should you repair the current electric motor or replace it with a new one? This presentation covers some direction to making a plan in order to …
February 27, 2017
This is an electric motor repair case study on a 800HP, 900RPM, 4000V Coal Crusher Motor for a Midwest-US based coal fired power generation plant. In 2006 the utility came to HECO after years of repetitive failures circling around the electric motor’s rotor. This was originally presented at the Reliability, Process, and Maintenance (RPM) Symposium on Sep 13-14, …
November 1, 2016
Part 1 – On-Site Findings Part 2 – In-Shop Findings Part 3 – Repairs Taken & Results The results of the “on-site” findings in conjunction with the “in-shop” inspection led to the electric motor repair approval to build a new rotor assembly for this Boiler Feed Pump Motor (9000HP, 1800RPM, 13,200v, Siemens Allis). This is …
October 24, 2016
Part 1 – On-Site Findings Part 2 – In-Shop Findings Part 3 – Repairs Taken & Results The results of the “on-site” findings resulted in the determination to pull this Boiler Feed Pump Motor (9000HP, 1800RPM, 13,200v, Siemens Allis) out for repair. The motor was removed and was received by the HECO motor repair shop …
October 8, 2016
Part 1 – On-Site Findings Part 2 – In-Shop Findings Part 3 – Repairs Taken & Results On March 09, 2015, HECO was called in to help evaluate vibration and noise concerns with a coal-fired power generation plant’s Boiler Feed Pump Motor. (9000HP, 1800RPM, 13,200v, Siemens Allis). Initial information from the plant vibration team indicated …
May 2, 2016
What’s up with motors? Motors are reliable as can be when managed and maintained properly. To a point. Then they still fail. It’s up to you to then make decisions quickly and get production running again Here’s the rub. You need to realize that the decisions made during these times can significantly impact future reliability …
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