MR ETOS ED User Manual

9 Visualization
Maschinenfabrik Reinhausen GmbH 2020 2576385142/08 EN ETOS
®
ED
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
You must enter the calculation factor for each tap position. If you enter the
value 0 for a tap position, a calculation will not be performed for this tap posi-
tion and the device will not display a value for the current on the low-voltage
side.
Settings Tap position table
Raw value
Tap position
Control system
TCR
1
1
1
3
2
2
2
4
3
3
3
5
4
4
1
6
5
5
2
7
6
6
1
8
7
7
3
9
8
8
4
10
9
9
5
11
10
10
6
12
Accept
Cancel
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Information
Recorder
Settings
EN CHANGE REBOOT admin 23.03.2020 08:08
Figure183: Tap position table
1. Go to Settings > Tap position table.
2. Enter the calculation factor for each tap position.
3. Press the Accept button to save the modified parameter.
9.25.3 Displaying tap-change operation statistics (optional)
In the switching statistics view, you can display how often the on-load tap-
changer has been switched to a particular tap position and how long it has
remained in a particular tap position.

MR ETOS ED Specifications

General

Brand	MR
Model	ETOS ED
Category	DC Drives
Language	English