Connection / Transformer; Current Transformer - Siemens SICAM P 7KG7750 Manual

4.4.2

Connection / Transformer

Input connection
As shown in chapter 1.6.4, the connection mode can be selected here.
•
Single-phase AC
•
Three-phase, four-wire, balanced
•
Three-phase, four-wire, unbalanced
•
Three-phase, three-wire, balanced
•
Three-phase, three-wire, unbalanced ( 2 x I )
•
Three-phase, three-wire, unbalanced ( 3 x I )
Three-wire, unbalanced can be selected either with the connection of two current transformers
(standard / Aron measuring circuit) or three current transformers.

4.4.2.1 Current Transformer

•
Yes:
•
No:
Measuring range
The secondary input current measuring range is selected for the SICAM P as follows:
•
1.2 A:
•
6 A:
Power Meter SICAM P 7KG7750/55, Manual
E50417-B1076-C340-A6, Edition 09.2013
input connection
*three-wire
unbalanced (3*I)
>current transformer
>voltage transformer
<ok
<cancel
Current transformers utilized (max. primary: AC 999999 A, secondary: AC 6 A)
Current transformers not utilized
*current transf.: No
*measuring range 1.2A
<ok
<cancel
nominal input AC 1 A
nominal input AC 5 A
A/ A
4
4.4 Basic Settings
61