MR ETOS TD, Operating Instructions Manual

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4 Product description
Maschinenfabrik Reinhausen GmbH 2020 25 4453918/14 EN ETOS
®
TD
The motor-drive unit control unit can be configured and the measured values
and results can be displayed using the web-based visualization. Here, the
functional scope is based on the ordered product version.
Figure 2: ETOS® TD and on-load tap-changer on one power transformer
4.3 Performance features
The motor-drive unit is characterized by the following features in particular:
▪ On-load tap-changer driven using the gear motor directly on top of the on-
load tap-changer head.
▪ Electronic control of the gear motor
▪ In multi-column on-load tap-changer model: Control of 3 gear motors with
one single control cabinet.
▪ Easy connection of the gear motor and control cabinet via integrated ca-
ble plug connection
▪ Automatic adjustment during commissioning
▪ OLTC pre-check: Check for compliance with the permissible operating
conditions (load current, oil level, oil temperature) prior to each on-load
tap-change operation
▪ Web-based visualization for configuring the motor-drive unit and display-
ing important data
▪ On-load tap-changer monitoring
▪ Transformer monitoring
▪ Integrated voltage regulation (optional)
▪ SCADA
– IEC 60870-5-101
– IEC 60870-5-103
– IEC 60870-5-104