ABB PCS6000 Service Manual page 11

Figure 10-3 Pressure loading gauges ........................................................................ 141
Figure 10-4 Pressure loading gauges inserted.......................................................... 142
Figure 10-5 Gate unit fixation ....................................................................................... 142
Figure 10-6 Order of loosening the clamping screws ............................................... 143
Figure 10-7 Stabilizer plate insertion ........................................................................ 144
Figure 10-8 Manual support during spreading tool insertion .................................. 145
Figure 10-9 Spreading tool insertion ......................................................................... 146
Figure 10-10 Spreading tool expansion ..................................................................... 146
Figure 10-11 Spreading tool applied over three heat sinks ....................................... 147
Figure 10-12 Spreading tool use example ................................................................... 148
Figure 10-13 Disconnecting cables from IGCT .......................................................... 149
Figure 10-14 Removing the gate unit fixations of the IGCT .................................... 149
Figure 10-15 Extracting the IGCT ................................................................................. 150
Figure 10-16 Correct handling of IGCT ........................................................................ 150
Figure 10-17 Inserting the IGCT ................................................................................... 151
Figure 10-18 IGCT components .................................................................................. 152
Figure 10-19 Centering freewheeling and neutral point diodes ............................. 153
Figure 10-20 Diode marking ......................................................................................... 154
Figure 10-21 Clamp diodes
Figure 10-22 Centering upper (A) and lower (B) clamp diodes ............................... 156
Figure 10-23 NP diodes
Figure 10-24 Centering freewheeling and neutral point diodes ............................. 158
Figure 10-25 Example of positioning and stop device not fully
inserted yet ................................................................................................................... 159
Figure 10-26 Freewheeling diode stack with aligned heat sinks (A) and
misaligned heat sinks (B). .............................................................................................. 161
Figure 10-27 Heat sink with loosened flexible bus bar. ............................................. 162
Figure 10-28 Power module assembly (back view) .................................................. 162
Figure 10-29 Heat sink moved back into position. ..................................................... 163
Figure 10-30 Order of tightening the clamping screws ............................................ 166
Figure 10-31 Tightening the clamping screw ............................................................ 166
Figure 10-32 Adjusting clamp pressure of stack ...................................................... 167
Figure 10-33 Pressure loading gauges storage place .............................................. 167
Figure 10-34 Gate unit fixation .................................................................................. 168
Figure 10-35 Clamp capacitors .................................................................................... 169
Figure 10-36 Symmetry resistor ................................................................................... 170
Figure 10-37 Clamp resistor ........................................................................................... 172
PRODUCT
PCS6000
........................................................................................ 155
............................................................................................. 157
DOCUMENT KIND
Service manual
DOCUMENT ID.
3BHS600000 E80
FIGURES
REV. LANG. PAGE
F en 11/272