
3 Product description
Maschinenfabrik Reinhausen GmbH 2020
25
4360571/02 EN
VACUTAP
®
VM
®
Figure 11: Pressure monitoring device with cover cap and ventilation
1 Ventilation
2 Cover cap
3.1.4.3 Rupture disk
The rupture disk is a pressure relief device without signaling contact in ac-
cordance with IEC 60214-1 and is located in the on-load tap-changer head
cover.
The rupture disk responds to a defined overpressure in the oil compartment
of the on-load tap-changer.
3.1.4.4 Pressure relief device MPreC®
On request, MR will supply a pre-fitted MPreC® pressure relief device in
place of the rupture disk. This device responds to a defined overpressure in
the oil compartment of the on-load tap-changer.
The on-load tap-changer therefore meets the requirements of IEC 60214-1
regarding pressure relief devices.
3.1.4.5 Tap-change supervisory device
The tap-change supervisory device monitors both the drive shaft between
on-load tap-changer(s) and motor-drive unit and the correct switching of the
diverter switch.
Содержание VACUTAP VM I 1002
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