7 Commissioning
Maschinenfabrik Reinhausen GmbH 2020 936385142/08 EN ETOS
®
ED
▪ Remove leads used for testing before the high voltage test as these func-
tion as antennas.
▪ Wherever possible, route the measurement leads and data leads sepa-
rately to the energy cables.
Contact the manufacturer if you have any questions about possible sources
of danger.
7.3.2 Dielectric tests on transformer wiring
Note the following points for dielectric tests on the transformer wiring:
The motor-drive unit is put through dielectric tests before delivery.
► Before the dielectric test for the transformer wiring, disconnect drive from
the section to be tested to rule out increased component loading for those
components fitted in the motor-drive unit.
7.4 Transporting transformer to the operating site
If the drive must be removed in order to transport the transformer, proceed
as follows:
1. Ensure that the drive and the on-load tap-changer are in the adjustment
position.
2. Remove the drive.
3. Do not actuate the drive while the on-load tap-changer is uncoupled and
do not turn the output shaft.
4. Do not actuate an on-load tap-changer which is uncoupled and do not turn
its drive shaft.
5. Transport the drive to the installation site in the MR delivery packaging.
6. Fit drive and drive shaft to transformer at the installation site.
7.5 Commissioning the transformer at the operating site
NOTICE
Damage to motor-drive unit!
Damage to the motor-drive unit due to condensate in protective housing of
motor-drive unit.
► Always keep protective housing of the motor-drive unit tightly closed.
► In the event of downtime lasting more than 8 weeks prior to initial com-
missioning, connect and operate the anti-condensation heater in the mo-
tor-drive unit. If this is not possible, place a sufficient amount of desiccant
in the protective housing.
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