MR COMTAP ARS, Руководство по эксплуатации, Страница: 26 / 50

5 Operation
Maschinenfabrik Reinhausen GmbH 2016 26 4434052/01 EN COMTAP® ARS
3. Insert the hand crank mounted in the motor-drive unit into the hand
crank aperture in the upper cover plate.
ð The built-in hand crank interlock switch interrupts the motor circuit
at two poles. The control circuit will not be interrupted.
4.
NOTICE!
Turn in one direction with the hand crank until the pointer has
fully circled the tap-change indicator once and is again in the mid-posi-
tion of the area marked in gray on the tap-change indicator. Otherwise
the tap-change operation is not completed correctly, which may result in
damage to the on-load tap-changer and transformer.
ð The tap-change operation is complete.
5. Take off hand crank and return to bracket.
6. Switch on motor protective switch Q1 (position I).
7. Close door of protective housing of motor-drive unit.
Monitoring during operation
Monitoring of the COMTAP® ARS and motor-drive unit is limited to occa-
sional visual inspections on the COMTAP® ARS head and motor-drive unit.
For efficiency reasons these visual checks can be combined with the usual
checks on the transformer.
Pay particular attention to the following:
▪
No oil leaks at the COMTAP® ARS head sealing points
▪ Gaskets of protective housing of motor-drive unit
▪ Correct functioning of the installed electrical heater in the protective
housing of the motor-drive unit
The insulating oils in the transformer are to be monitored by the operator in
accordance with the appropriate rules and regulations.
5.4