Page 185 - HVAC Pump Handbook

Rishel_07.qxd 20/4/06 6:29 PM Page 182

Pump Drivers and Variable-Speed Drives

6-pole 1200 rev/min Minimum Eff. 80.0 85.5 86.5 87.5 87.5 89.5 89.5 90.2 90.2 91.7 91.7 93.0 93.0 93.6 93.6 94.1 94.1 95.0 95.0 95.0 95.0 95.0 95.0 95.0 95.0

Efficiency Electric Motors Rated 600 Volts or Less (Random Wound)

Enclosed Motors Nominal Eff. 82.5 82.5 87.5 84.0 88.5 84.0 89.5 87.5 89.5 87.5 91.0 90.2 91.0 90.2 91.7 91.0 91.7 91.7 93.0 92.4 93.0 92.4 94.1 93.0 94.1 93.6 94.5 94.1 94.5 94.5 95.0 94.5 95.0 94.5 95.8 95.0 95.8 95.4 95.8 95.4 95.8 95.4 95.8 95.4 95.8 95.4 95.8 95.4 95.8 95.4

4-pole 1800 rev/min Minimum Nominal Eff. Eff. 85.5 86.5 86.5 89.5 89.5 91.7 91.7 92.4 93.0 93.6 93.6 94.1 94.5 95.0 95.4 95.4 95.4 95.8 96.2 96.2 96.2 96.2 96.2 96.2 96.2

6-pole 1200 rev/min Minimum Nominal Eff. Eff. 80.0 82.5 81.5 86.5 81.5 87.5 86.5 88.5 87.5 89.5 88.5 90.2 90.2 91.7 90.2 91.7 91.0 92.4 91.7 93.0 92.4 93.6 93.0 94.1 93.0 94.1 93.6 94.5 93.6 94.5 94.1 95.0 94.1 95.0 94.5 95.4 94.5 95.4 94.5 95.4 94.5 95.4 94.5 95.4 95.0 95.8 95.4 96.2 95.4 96.2

Full-Load Efficiencies for NEMA Premium™ Open Motors 4-pole 1800 rev/min Minimum Eff. 82.5 84.0 84.0 84.0 84.0 89.5 90.2 91.7 91.7 92.4 93.0 93.0 93.6 94.1 94.1 94.5 94.5 95.0 95.0 95.0 95.0 95.0 95.0 95.4 95.4 Courtesy General Electric Company Bulletin No. GEP-500Q

TABLE 7.4 Nominal Eff. HP 85.5 001 86.5 001.5 86.5 002 89.5 003 89.5 005 91.0 007.5 91.7 010 93.0 015 93.0 020 93.6 025 94.1 030 94.1 040 94.5 050 95.0 060 95.0 075 95.4 100 95.4 125 95.8 150 95.8 200 95.8 250 95.8 300 95.8 350 95.8 400 96.2 450 96.2 500

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