Putting Into Operation - ABB UBB Series Installation And Commissioning Manual

9.3.6 Heater
Switch off all power supplies and feel with a finger on the
protection plate that the heater has been warmed up during
earlier tests. Switch on the power afterwards.
9.3.7 Pressure relay
Check the function as described in
Accessories and protection
.
devices for on-load tap-changers, 1ZSC000562-AAD

9.4 Putting into operation

Put the LOCAL/REMOTE switch to REMOTE. Reset the drag
hands. Make sure that no tools or foreign objects are left in
the motor-drive cabinet or on the transformer cover. Close the
door to the motor-drive.
40 Installation and commissioning guide UBB | 1ZSE 5492-118 en, Rev 5