
6 Fault elimination
Maschinenfabrik Reinhausen GmbH 2020
46
4360571/02 EN
VACUTAP
®
VM
®
2. Contact and inform Maschinenfabrik Reinhausen of the following:
ð
What was the load of the transformer at the instant of tripping?
ð
Was there a tap-change operation on the on-load tap-changer immedi-
ately before or during the tripping?
ð
Did any other protective devices of the transformer respond at the in-
stant of tripping?
ð
Were switching operations in the network being carried out at the in-
stant of tripping?
ð
Were overvoltages registered at the instant of tripping?
ð
How high is the static pressure on the pressure relief device (height dif-
ference between the oil level in the on-load tap-changer oil conservator
and the pressure relief device)?
3. Take further action in agreement with Maschinenfabrik Reinhausen.
6.2.3 Re-commissioning the transformer
You can re-commission the transformer once the cause for tripping the pres-
sure monitoring device has been determined and resolved:
1. Ensure that the sensor on the snap-action switch is in the OPERATION
position.
2. Commission the transformer.
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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