1MRK 511 434-UEN A
Section 2
SAM600 Process Bus I/O System
SAM600 Process Bus I/O System
7
Operation Manual
2.1.2
SAM600-CT for conventional current measurements
Figure 2: SAM600-CT module
A SAM600-CT module has four analog input measurement channels and interfaces
conventional current transformers with a 1A or 5A secondary interface (order
variant). The measurement chain is calibrated and temperature compensated.
Interposing CTs are not required and different ratios can be set as settings in
PCM600.
The neutral current as provided in the IEC/UCA 61850-9-2LE stream can either be
measured or calculated as sum of the three phase values.
A pre-assigned binary input can be directly wired to a test switch. The input signals
a test condition in the IEC/UCA 61850-9-2LE stream through a corresponding
quality bit in order to allow for blocking conditions in the IEDs receiving the data
stream. The polarity of the binary input is configurable.
SAM600-CT provides two IEC 61850 access points which can be assigned for
configured for incoming (bridging) and outgoing IEC 61850-9-2LE traffic.
