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decrease PF with enterance of capacitor bank View All
dear sir

I have problem in my factory

almost loads are dc motor control by eurotherm 590+ drive
we have two transformer 1 MVA , 1.5 MVA
1-The PF in 1 MKVA with load reach .85 although there is
some capacitor bank not enter yet ,If I try contact more capacitor by manual
the PF decrease than .8 .
2- another big problem in 1.5 MVA , The PF not change
with enterance capacitor bank but some time decrease.
the PF reach .45

please support me , THANKS

6 years ago - 1 month left to answer. - 3 responses - Report Abuse
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Why do you want to decrease the power factor of your system? Reducing the power factor will reduce the efficiency of your power utilization [1]. By increasing your power factor you will reduce your energy costs [2].

Niel Leon

6 years ago

Source: [1]


  0     0         

Please read the details 1 , 2 of my problem and reply me
(I want to increase PF but I can't ).

6 years ago


  0     0         

Sorry, I misunderstood. Thank you for the clarification.

If you are using DC drive systems simply adding a capacitor bank may not be the solution. Here is an article which should provide you some guidance [1].

Have you contact eurotherm [2] for recommendations?

They have a white paper on the subject [3]


6 years ago


  0     0  does not provide engineering advice. The Ask@ service is a forum for members to exchange ideas relating to the world of engineering. We caution users not to accept any responses that they receive without further validation, and not to rely on any engineering advice that they may get from other members of the Ask@ forum. specifically disclaims any obligation to validate or verify any information posted within the Ask@ service. encourages users to seek the services of a professional engineer for any engineering advice they may require.