Franklin 2007 ユーザーズマニュアル

 

F.  Check insulation resistance as pump/motor assembly is lowered into the well. Resistance may drop  

 

  

  

 

gradually as more cable enters the water, but any sudden drop indicates possible cable, splice or motor    

  

  

 

lead damage; see page 44.

 

A.  Check all electrical and water line connections and parts before starting the pump. 

 

B.  Start the pump and check motor amps and pump delivery. If normal, continue to run the pump until delivery is 

 

 

clear. If three-phase pump delivery is low, it may be running backward. Rotation may be reversed (with power off)   

 

 

by interchanging any two motor lead connections to the power supply.

C. Check three-phase motors for current balance within 5% of average, using motor manufacturer instructions.  

 

 

Imbalance over 5% will cause higher motor temperatures and may cause overload trip, vibration, and reduced life.

 

D. Verify that starting, running and stopping cause no signifi cant vibration or hydraulic shocks.

 

E.  After at least 15 minutes running time, verify that pump output, electrical input, pumping level, and other

 

 

characteristics are stable and as specifi ed.

Date _____________________  Filled In By ____________________________________________________ 

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