Preventive and Predictive Maintenance, benefit vs cost

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squirm

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Hello,
Can someone give me a link to some white papers or discuss the Preventive Maintenance and Predictive Maintenance frequencies on a cost/benefit basis for various electrical components, such as MCCs and breakers. I'd like to know how our plant compares with others.

Most of our equipment is either indoor or at least in a environmental controlled environment. Most of our breaker PM activities are annual, such as inspection, lubrication, and cleaning are annual. The PdM testing such as megger testing, contact resistance via a digital low resistance ohmmeter are also performed annually.

The MCC starter PM activities such as cleaning, inspection, lubrication are biannual, while the MCC PdM activities such as insulation megger testing, testing breaker trip, testing motor and feeder resistance, etc is also performed biannual.
Thanks! :grin:
 
IEEE yellow and gold books are a good place to start. I think the data in IEEE publications are reliable and realistic. As far as a good cost analysis white paper I'm dont know, but I'm sure one of the guys will point you in the right direction soon.
 
squirm said:
Hello,
Can someone give me a link to some white papers or discuss the Preventive Maintenance and Predictive Maintenance frequencies on a cost/benefit basis for various electrical components, such as MCCs and breakers. I'd like to know how our plant compares with others.

Most of our equipment is either indoor or at least in a environmental controlled environment. Most of our breaker PM activities are annual, such as inspection, lubrication, and cleaning are annual. The PdM testing such as megger testing, contact resistance via a digital low resistance ohmmeter are also performed annually.

The MCC starter PM activities such as cleaning, inspection, lubrication are biannual, while the MCC PdM activities such as insulation megger testing, testing breaker trip, testing motor and feeder resistance, etc is also performed biannual.
Thanks! :grin:
Click to expand...

70B is a place to start. ANSI/NETA uses a relibility centered maintenence plan to determine periodicities. The file is too large to post here so PM me and I will send it to you.

One note, you mentioned breaker lubrication, you cannot do that in the field, the common practice of using spray lube (Technition in a can) causes more damage than it does good, it makes everything work great for a week or so but actually penetrates and breaks down the real lubricants and is a leading cause of failures.

For relibility data check Uptime magazine, or thier website.
 
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