
7 Maintenance
Maschinenfabrik Reinhausen GmbH 2020
55
4360571/02 EN
VACUTAP
®
VM
®
7.3.4 Filling the oil compartment and oil conservator with fresh
insulating fluid
NOTICE
Damage to the on-load tap-changer!
Unsuitable insulating fluids cause damage to the on-load tap-changer.
► Use insulating fluids that meet the requirements in accordance with IEC
60296.
► If approved by the transformer manufacturer, you can use synthetic es-
ters in accordance with IEC 61099 or natural esters in accordance with
IEC 62770 approved by Maschinenfabrik Reinhausen GmbH.
► Ensure that the new insulating fluid has the same chemical, mechanical,
thermal and electrical properties. Otherwise contact Maschinenfabrik
Reinhausen GmbH's Technical Service department.
1. Fill the oil compartment of the on-load tap-changer with fresh insulating
fluid via the pipe connection S up to the level of the carrier plate.
2. Insert the new o-ring untwisted in the on-load tap-changer head cover.
3. Check that the feather key is securely positioned in the adapter shaft.
Where necessary, use Vaseline to secure the feather key against falling
out.
Figure 28: Feather key
Summary of Contents for VACUTAP VM I 1002
Page 1: ...On load tap changer VACUTAP VM Operating Instructions 4360571 02 EN Selector size RC RD RDE ...
Page 69: ...9 Drawings Maschinenfabrik Reinhausen GmbH 2020 69 4360571 02 EN VACUTAP VM 9 Drawings ...
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