Proposal for Pdm Services

We have been carrying out Pdm (Predictive Maintenance Services) for you for almost three years now and our current Order expires in May 2006

Perhaps you might like to consider a new approach for 2006 – 2007 so that you obtain the full benefit of Pdm (Predictive Maintenance Services), whereby you are working with the prediction of failure and utilising your resources where they are required most and at the correct time. Cutting down on unexpected failures and breakdowns, and allowing the Plant to maintain maximum production: it is estimated that an unexpected breakdown or failure takes twice as long to repair as a planned shutdown for the repair.

In essence, most of maintenance time should be Pdm generated, a target of 80% is recommended, indicating that only 20% is due to unexpected failure.

Early signals can be obtained from,

Infrared Thermography

Airborne Ultrasound

Motor Circuit Analysis

Power Supply Signature Analysis

Vibration Analysis

Quite often these early signals are ignored by end users, or the Surveys are too far apart to be of much worth: if an early signal is produced and the Plant is not surveyed for two years then there was little benefit because the questionable might well have failed by the time of the second Survey.

I would like to propose the following programme for your consideration.

Every Month

Thermographic Survey of the rotating kilns for the detection of damaged refractories and the trending of thermal patterns and gradients

Every Four Months

Thermographic and Airborne Ultrasound Surveys of all electrical and mechanical Plant and equipment for detection of ‘Hot Spots’, electrical arcing, tracking and corona

Every six months

Motor Current Analysis and Power Signature Analysis of critical machines to monitor stator windings, rotor windings, and squirrel cage rotor conditions, and determine power quality of the system including Power Factor. These results would assist in determining whether Power Factor Correction Equipment was necessary.

Airborne Ultrasound Surveys of the Compressed Air System can find all the leaks. This will reveal the amount of air loss. The leaks can be found in noisy environments.

One Off

Load Flow diagram and fault level analysis of main sub stations, provide software and training for system flow and fault analysis.

We are of the firm opinion that taking these steps would ensure:

Increased production

Increased revenue

More reliability of your Plant

Fewer breakdowns

Cut down on overtime costs

More peace of mind.