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Motors matched to load profiles lead to high-efficiency service
Ist Teil von
Pulp & paper, 1995-08, Vol.69 (8), p.55
Ort / Verlag
San Francisco: RISI, Inc
Erscheinungsjahr
1995
Link zum Volltext
Beschreibungen/Notizen
Premium-efficiency motors typically cost up to 25% more than a comparably rated standard motor, but standard-efficiency motors typically incur yearly operating costs of 10 to 20 times the purchase price, compared with 8 to 12 times the purchase price for premium efficiency motors. A 100-hp standard-efficiency motor with an efficiency of 91.0 and a list price of $3,785, running a 100-hp load continuously, can be expected to rack up $57,450 in one year's electricity bills. A 100-hp premium-efficiency motor with an efficiency of 95.4 and a list price of $4,404 costs $54,800 per year to operate under the same conditions. The $619 price difference earns $2,650 in annual electrical savings.