Rockwell Automation 20T PowerFlex Diode Bus Supply - Manual (Page 35)

Supplemental Information A-5
PowerFlex Diode Bus Supply User Manual
Publication 20T-UM001D-EN-P
Line Reactors A minimum reactance is required to limit peak currents in the AC line and
the diode bridge circuit. This can be accomplished either by a matched
supply transformer or by adding line reactors to ensure the requested
minimum voltage drop over the total line impedance. The preferred method
is to install a minimum 3% line reactor, which will also reduce line
harmonics.
Use Table A.B to select a line reactor based on the sum of the drive’s
connected DC Amps and the supply transformer rating.
For more details on the 1321-Series line reactors, see 1321 Power
Conditioning Products Technical Data, publication
1321-TD001 .
Table A.B Line Reactor Selection
Spare Parts The Diode Bus Supply is not factory or field repairable, therefore no spare
parts exist for this product.
Drives Maximum Power Transformer Size
(1)
(1) The inductance value of the supply transformers includes 2.5 µH for 10 m feeder cable.
Line Reactor
Sum of DC Amps 1000 kVA 5.5% 31 µ H 1400 kVA 6% 24 µ H Watts Induct. [ µ H] Catalog No. (2)
(2)
The number in the catalog string represents the fundamental AC current rating of the reactor.
400V, 50 Hz
Up to 120 Yes — 180 200 1321-3R130-B
480V, 60 Hz
Up to 120 Yes — 180 200 1321-3R130-B
600V, 60 Hz
Up to 120 Yes Yes 180 200 1321-3R130-B