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Appendix K: Additional PX Information
644
Unbalanced Current Calculation
Unbalanced current information is available on 3-phase models only.
This section explains how the PX calculates the unbalanced current
percentage.
Calculation:
1. Calculate the average current of all 3 lines.
Average current = (L1+L2+L3) / 3
2. Calculate each line's current unbalance by having each line current
subtracted and divided with the average current.
L1 current unbalance = (L1 - average current) / average
current
L2 current unbalance = (L2 - average current) / average
current
L3 current unbalance = (L3 - average current) / average
current
3. Determine the maximum absolute value among three lines' current
unbalance values.
Maximum (|L1 current unbalance|, |L2 current unbalance|,
|L3 current unbalance|)
4. Convert the maximum value to a percentage.
Unbalanced
load
percent
=
100
*
maximum
current
unbalance
Example:
Each line's current:
L1 = 5.5 amps
L2 = 5.2 amps
L3 = 4.0 amps
Содержание PX3-4000 series
Страница 5: ......
Страница 350: ...Chapter 6 Using the Web Interface 329 10 To print the currently selected topic click the Print this page icon...
Страница 615: ...Appendix H LDAP Configuration Illustration 594 5 Click OK The PX_Admin role is created 6 Click Close to quit the dialog...
Страница 627: ...Appendix I RADIUS Configuration Illustration 606 Note If your PX uses PAP then select PAP...
Страница 628: ...Appendix I RADIUS Configuration Illustration 607 10 Select Standard to the left of the dialog and then click Add...
Страница 629: ...Appendix I RADIUS Configuration Illustration 608 11 Select Filter Id from the list of attributes and click Add...
Страница 632: ...Appendix I RADIUS Configuration Illustration 611 14 The new attribute is added Click OK...
Страница 633: ...Appendix I RADIUS Configuration Illustration 612 15 Click Next to continue...
Страница 648: ...Appendix J Integration 627 3 Click OK...
Страница 661: ...Appendix J Integration 640 2 Launch dcTrack to import the spreadsheet file...