Current Input; Setting The Conversion Ratio Of The Current Transformer - Siemens SENTRON PAC3200 Manual

7.5.2

CURRENT INPUT

7.5.2.1

Setting the conversion ratio of the current transformer

The factory setting is measurement using current transformers. If you want to measure using
current transformers, the conversion ratio must be set at initial startup.
Figure 7-9
Procedure
1. In the "SETTINGS" menu, call the "BASIC PARAMETERS" entry.
2. In the "BASIC PARAMETERS" menu, open the "CURRENT INPUTS" entry:
3. Open edit mode of the "CT PRIMARY" device setting:
4. Set the desired value of the primary current:
5. Accept the value with:
6. Go to the "CT SECONDARY" device setting:
7. Return to one of the selection menus or to the measured values display:
Example
You want to measure the current using current transformers for 5000 A/5 A.
For this purpose, enter:
SENTRON PAC3200
Manual, 02/2008, A5E01168664B-04
"CURRENT INPUTS" device setting
<F4>
The display shows the currently valid settings.
<F4>
<F2> and <F3>
<F4>
The value of the primary current is permanently saved and becomes effective
immediately.
The display returns to display mode.
<F2> or <F3>
Set the desired value for the secondary current. Proceed in exactly the same way as
when entering the primary current.
The value of the secondary current is saved permanently and becomes effective
immediately.
The display returns to display mode.
<F1>
Startup
7.5 BASIC PARAMETERS
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