Transformer kVA Ratings - Is a Line Reactor Recommended?

The recommendation to apply a line reactor (in front of the drive) is based on the kVA rating of the drive versus the kVA rating of the supply transformer (transformer upstream of the drive).  In the tables below, find the drive catalog number or horsepower rating, then move to the right to the “Max Supply kVA.”  If the supply transformer exceeds the value in this cell, a line reactor is recommended.  The part number for the Allen-Bradley recommended reactor is listed in the next column.

PowerFlex 520-Series

DriveDrive Catalog NumberVoltskW (Hp)Max Supply kVA3% Line Reactor Open Style 1321-Reactor Inductance (mH)Reactor Current Rating (amps)
PowerFlex 52525BB2P52400.4 (0.5)253R4-B6.54
25BB5P02400.75 (1.0)503R8-B38
25BB8P02401.5 (2.0)503R8-A1.58
25BB0122402.2 (3.0)503R12-A1.2512
25BB0172403.7 (5.0)503R18-A0.818
25BB0242405.5 (7.5)1003R25-A0.525
25BB0322407.5 (10.0)1503R35-A0.435
25BB04824011.0 (15.0)1503R55-B0.555
25BB0622407.5 (10.0)1503R80-B0.480
25BD1P44800.4 (0.5)153R2-B202
25BD2P34800.75 (1.0)303R4-C94
25BD4P04801.5 (2.0)503R4-B6.54
25BD6P04802.2 (3.0)753R8-C58
25BD0104803.7 (5.0)1003R8-B38
25BD0134805.5 (7.5)1203R12-B2.512
25BD0174807.5 (10.0)1503R18-B1.518
25BD02448011.0 (15.0)2003R25-B1.225
25BD03048015.0 (20.0)2003R35-B0.835
25BD03748018.5 (25.0)5003R45-B0.745
25BD04348022.0 (30.0)5003R45-B0.745

PowerFlex 750-Series

DriveDrive Catalog NumberVoltskW (Hp)Max Supply kVA3% Line Reactor Open Style 1321-Reactor Inductance (mH)Reactor Current Rating (amps)
PowerFlex 753/755

For PowerFlex 753, replace 20G with 20F.
20G_D5P04802.2 (3.0)5003R4-B6.54
20G_D8P04804.0 (5.0)5003R8-B38
20G_D0114805.5 (7.5)7503R12-B2.512
20G_D0144807.5 (10.0)7503R18-B1.518
20G_D02248011.0 (15.0)7503R25-B1.225
20G_D02748015.0 (20.0)7503R35-B0.835
20G_D03448018.5 (25.0)10003R35-B0.835
20G_D04048022.0 (30.0)10003R45-B0.745
20G_D05248030.0 (40.0)10003R55-B0.555
20G_D06548037.0 (50.0)10003R80-B0.480
20G_D07748045.0 (60.0)10003R80-B0.480
20G_D09648055.0 (75.0)10003R100-B0.3100
20G_D12548075.0 (100.0)10003R130-B0.2130
20G_D14048075.0 (100.0)10003R160-B0.15160
20G_D15648090.0 (125.0)15003R160-B0.15160
20G_D186480110.0 (150.0)15003R200-B0.11200
20G_D248480150.0 (200.0)20003RB320-B0.075320
20G_D302480187.0 (250.0)25003RB320-B0.075320
20G_D361480224.0 (300.0)25003RB400-B0.06400
20G_D415480260.0 (350.0)30003R500-B0.05500
20G_D430480260.0 (350.0)35003R500-B0.05500
20G_D485480298.0 (400.0)35003R600-B0.04600
20G_D545480336.0 (450.0)40003R600-B0.04600
20G_D617480373.0 (500.0)45003R750-B0.029750
20G_D710480448.0 (600.0)45003R750-B0.029750
20G_D740480485.0 (650.0)45003R750-B0.029750
20G_D800480522.0 (700.0)50003R850-B0.027850
20G_D960480597.0 (800.0)50003R1000-B0.0221000
20G_D1K0480671.0 (900.0)50003R1000-B0.0221000
20G_D1K2480746.0 (1000.0)50002 x 3R750-B0.0151500
20G_D1K3480821.0 (1100.0)50002 x 3R750-B0.0151500
20G_D1K4480933.0 (1250.0)50002 x 3R850-B0.0141700
20G_D1K54801007.0 (1350.0)50002 x 3R850-B0.0141700
20G_D2K04801082.0 (1750.0)50002 x 3R1000-B0.0112000