Multiple voltage regulators along distribution line
Multiple voltage regulators along distribution line
(OP)
We are in a remote area and have installed miles of distribution line and have voltage drop issues. We have installed voltage regulators and capacitor banks to mitigate the situation. What is the best approach to setting the tap change delay at the voltage regulators?
First thoughts are set the one closest to the source with the lowest delay (30 seconds) and add 15 seconds for each subsequent regulator.
First thoughts are set the one closest to the source with the lowest delay (30 seconds) and add 15 seconds for each subsequent regulator.






RE: Multiple voltage regulators along distribution line
RE: Multiple voltage regulators along distribution line
RE: Multiple voltage regulators along distribution line
If you get your wires crossed you can shortly expect to be confused...
I'd think the very first thing to do is to set up the voltage regulation bandwidths at the source station, taking in to account both the real and reactive characteristics [if applicable] of how the composite load of all feeders changes over the course of the day. Doing this ensures the best possible match to the summed loads the source has to supply.
Then and only then do you work your way down the line or lines in question, applying the scheme you propose...although I'd probably only add 5 seconds per regulator after the first one.
Incidentally, you haven't mentioned if the down-line caps are switched in and out of service...
CR
"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]
RE: Multiple voltage regulators along distribution line
RE: Multiple voltage regulators along distribution line
-low voltage, lagging/leading kVAR, and lagging/leading power factor. All three have a 60 second delay.
-high voltage with a 5 second delay.
Can you point me to band width calculations you mentioned?
RE: Multiple voltage regulators along distribution line
Perhaps others can be of further assistance...
CR
"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]