I am looking for the formulas or concept of calculating or estimating the new overload settings once power factor correction capacitors are installed at the motor terminals. Remember the capacitors are downstream of the overloads therefore there is a decrease in current seen by the overload...
I came across late 50's low voltage MCCs and noticed all of the MCCs have reactors(current limiting) in series (between the incoming from the transformer to the line side of MCC) or MCC feeding another MCC. There are no nameplate or information available what so ever. Is there a way i can...
I have an interesting question if any one can help.
2 identical compressor motors with the following data.
600HP, 2300V, 390RPM, 152FLA
Both were run uncoupled to check the amps.
One being fed from Delta-Wye transformer with the following data
12470V-2400Y/1383
2000/2240(OA) KVA, %Imp 5.24...
