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@ Pump Affinity Laws:

  • Q1/Q2 » N1/N2: capability (or flow) and speed is proportional.

  • P1/P2 » (N1/N2)3: power consumption and speed cubic is proportional.

According to Pump Affinity Laws, frequency or speed reduced to 50%

=> refrigerating capability reduced to 50%

=> electric consumption reduced to (50%)3 = 12.5%.

 

 

Energy saving application:

  • If speed reduced to 83.3% (from 60 Hz to 50Hz), power consumption reduced to 57.9% (50/60)3.

  • If speed reduced to 66.7% (from 60 Hz to 40Hz), power consumption reduced to 29.6% (40/60)3.

  • If speed reduced to 50.0% (from 60 Hz to 30Hz), power consumption reduced to 12.5% (30/60)3.

Our Etern Energy Saving System (E2S2) saves energy by avoiding large starting current,

and lowing down the running frequency when possible.

 

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 © 2015 Ming-Tran Corporation. Taoyuan, Taiwan