kW reductions from capacitors

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But the difference in voltage at the load will not directly tell you the difference in VD, since there are vectors involved.
A highly inductive supply (just out a real inductor in for example) can cause a large voltage drop to the load without dissipating much power at all. A perfect inductor would have no I^2R loss.

Looking at first order effects, you do not care about the resulting load voltage, only about the resistive component of the VD.

Tapatalk!
 
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Besoeker said:
The very notion that the PFC would be connected downstream of the motor overload is not something I would expect any half competent engineer to do.
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It is a well known industrial practice.
Besoeker said:
And on making the capacitor smaller if the motor is not running at FLC is a bit odd as well.
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Making capacitor smaller but still serving the need makes economical sense. In your case also, the corrected pf is about 0.97 and not unity.
Besoeker said:
Draw out the Steinmetz equivalent circuit and you may begin to understand.
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Begin to understand what?!
Besoeker said:
we always fit a contactor for the PFC.
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It can be a needless expenditure in cases when motor and capacitor to be run as a unit.
 
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Sahib said:
It is a well known industrial practice.
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I'll bow to your vastly greater experience in that field.

Sahib said:
Making capacitor smaller but still serving the need makes economical sense. In your case also, the corrected pf is about 0.97 and not unity.
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I know what it was - I calculated it.

Sahib said:
Begin to understand what?!
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What the C bit of the PFC is doing.

Sahib said:
It can be a needless expenditure in cases when motor and capacitor to be run as a unit.
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It's an avoidable risk. That we avoid,
 
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