9. Commissioning ____________________________________________________28
9.1 Reassembly ___________________________________________________28
9.2 Oil lling _______________________________________________________28
9.2.1 Dehydrating breather ________________________________________28
9.3 Electrical connection and testing __________________________________28
9.3.1 Motor protection ____________________________________________28
9.3.2 Counter ___________________________________________________28
9.3.3 Position transmitter and other multi-position switches ____________28
9.3.4 Light ______________________________________________________28
9.3.5 Heater ____________________________________________________29
9.3.6 Pressure relay ______________________________________________29
9.4 Putting into operation ___________________________________________29
APPENDIX A. Welding and mounting instruction __________________________30
A1 Introduction ______________________________________________________30
A1.1 Required tools ________________________________________________30
A2 Receiving ________________________________________________________31
A2.1 Temporary storage before assembly ______________________________31
A3 Welding and mounting instruction ____________________________________31
A3.1 Welding of the ange and frame for the motor-drive mechanism ______31
A3.2 Installing the on-load tap-changer and the motor-drive
mechanism in the tank ______________________________________________33
A3.2.1 Installation of the on-load tap-changer ________________________33
A3.2.2 Installation of the motor-drive mechanism _____________________35
A3.3 Mounting of ttings for motor-drive mechanism cabinet ______________37
A3.4 Welding of the ange and mounting of the pressure relay ____________38
A4 Welding instruction for inclined assembly ______________________________39
A4.1 Welding of ange and frame for motor-drive mechanism _____________39
A4.2 Mounting of the on-load tap-changer _____________________________40