MR ETOS TD User Manual

9 Visualization
Maschinenfabrik Reinhausen GmbH 2020 2234453918/14 EN ETOS
®
TD
9.25 On-load tap-changer monitoring
9.25.1 Changing tap position designation (optional)
This function allows you edit the designation of the tap position. The desig-
nations are displayed on the main screen when each of the tap positions is
active and are used for the control system.
Settings Tap position table
Raw value
Tap position
Control system
1
1
1
2
2
2
3
3
3
4
4
1
5
5
2
6
6
1
7
7
3
8
8
4
9
9
5
10
10
6
Accept
Cancel
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Settings
EN CHANGE REBOOTadmin 23.03.2020 08:08
Figure158: Tap position table
1. Go to Settings > Tap position table.
2. Enter the designation for the tap position and for the control system.
3. Click on the Accept button.
9.25.2 Setting the TCR calculation factor (optional)
If you only measure the voltage and current on the high-voltage side of the
transformer, you can set the TCR (Transformer Current Rating) calculation
factor for each tap position of the on-load tap-changer using this function.
The device uses this calculation factor to calculate the current on the low-
voltage side depending on the current tap position.
The TCR calculation factor is defined as the ratio of the current on the low-
voltage side (I
LV
) to the high-voltage side (I
HV
):
TCR =
I
LV
I
HV

MR ETOS TD Specifications

General

Brand	MR
Model	ETOS TD
Category	DC Drives
Language	English