ABB ACS5000 - Page 44

03 POWER ELECTRONICS AND CABINET FEATURES
3BHS799208 E01 REV E ACS5000 WATER-COOLED USER MANUAL 44/186
Primary PCU (2100)
Primary phase converter units of 2100 mm are used in frame size 2 and 4.
Figure 3-8 Primary PCU, 2100 mm
(1) Roof-mounted cooling unit
(2) EAF circuit board
(3) Pulse transformers for
crowbar thyristors
(4) PINT circuit board
(5) 2 di/dt chokes and 2 VLSCD
circuit boards
(6) DC-link capacitors
(7) Main INT circuit board
(8) 2 IPS
(9) Grounding switch
(10) HVD and CVMI circuit board
for voltage and
current measurement
(11) Clamp resistor
(12) PE ground busbar
(13) Back oscillation damping circuit
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