MR VACUTAP - Performing DC Resistance Measurement

7 Maintenance
Maschinenfabrik Reinhausen GmbH 2020 735788897/03 EN VACUTAP
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VVS
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2. Use hose clips to secure protective cover to horizontal drive shaft.
Figure65: Securing protective cover
3. For special design types featuring cardan shafts, be sure to check the ex-
pansion bellows and the lubricant reservoir of the cardan shafts.
You will find a detailed description of how to fit the drive shaft in the MR op-
erating instructions "Drive shaft".
7.3.6 Centering on-load tap-changer and motor-drive unit
► Center on-load tap-changer and motor-drive unit as described in relevant
MR operating instructions for motor-drive unit.
7.4 Performing DC resistance measurement on transformer
The measured DC current is normally restricted to 10% of the rated current
of the measured transformer winding in order to prevent the winding from
overheating.