Definition of Overall Equipment Effectiveness (OEE):
OEE = Availbility * Performance Rate * Quality rate
where Availabilty = (Calender Hours – Planned losses -Unplanned lossed) / Calender hours
Performance rate = Operatig Efficiency * Rate Efficiency
where ,
Operating Efficiency=(Available hours -Losses beyond equipment/plant’s control
Available hours
Rate Efficiency = Actual output/design output
Quality Rate = OK product tonnage/Total input material
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