UIC ERC Industrial Assessments Project 1999 Paper
Through proper application of simulation and modeling within industrial environments, greater impact for energy, waste and production improvements can occur. Modern simulation and modeling systems can help determine impacts of energy and waste reduction concepts on production and vice-versa. Through a 1999 Illinois Department of Commerce and Community Affairs funded project, improvements of over 40%…
Troubleshooting a VFD Fault Instantaneous Trip Including Bypass
A new inline ventilation motor operating on a VFD with bypass tripped on startup with the VFD and instantaneously tripped when tested across the line. Smoke was noted in the drive cabinet and MotorDoc was contacted to evaluate the electric motor and work with the VFD installer following recommendations by repair shops to remove the…
Before and After Motion Amplification Testing of Fan Application
Initial testing of an ID fan performed in 2018 with corrections made and retesting performed with EMPATH analysis, GTI Predictive vibration analysis and RDI motion amplification. While values were not extreme in the pre-test, the resulting vibration destroyed fan bearings and other poor conditions which prevented the operation of the fan system. Testing was performed…
Time to Failure Estimation with ESA Series Part 1 Electric Motor Theory
As we start into ESA theories and application, we will have to spend a little time on electric motor theory. As we will start out with a basic system, AC motors are the simplest in terms of operation and components, we will start out with AC induction motors. Using this base knowledge, we can later…
Insulation Death Due to Old Age
It does happen, although rarely, in typical industrial environments that an electric machine will die of old age. The reason is that machines are often exposed to contamination issues, other environmental issues, power issues or a combination of events that degrade the insulation slowly or rapidly. There is also a rule of reliability that should…
How to Analyze a Belted Fan with EMPATH and Electrical Signature Analysis
Free Live Seminar for April 17, 2020 from noon to 1pm CST In this presentation we will work step-by-step how to analyze an electric motor, sheaves, belts and fan including related bearings using real field data. The demonstration will be with the EMPATH system but applies to other current and electrical signature analysis. GoToWebinar to…
A Review of Reliability-Centered Maintenance
Note: A copy of the Nowlan and Heap is included at the end of this post. The purpose of RCM is to provice a process to develop the right maintenance at the right time for the right reasons. The origination of RCM was the December, 1978 document and report developed by United Airlines under the…
Part 1 RCM of Equipment Using Gym Equipment Examples
Seeing as how I’ve mentioned in posts and newsletters that we are using RCM (Classical – NAVSEA) in the development of our maintenance program at the 2XL Powerlifting and MotorDoc LLC offices, it provides an opportunity to outline the process using a relatively simple example. In this first part, we will discuss the functions and…