External Circuitry; Short-Circuit Indicator - Siemens SICAM A8000 Series Manual

2.8.6

The following circuitry variants are examples and not related exclusively to the shown values.

Danger

Works on the circuitry may be performed in de-energized state only!

During electrical installation, all the rules and regulations of power systems must be considered.

2.8.6.1

The current inputs I1, I2/IN, I3 are connected via the adaptor module CM-8820 with the

measuring transformers of the corresponding phase currents.

In this configuration, the module functions as short-circuit indicator. Fault information on the

direction is not provided.

S1

P1

Note

With this connection scheme, the accuracy of ground current measurements for isolated/resonant ground

connections cannot be assured.

SICAM A8000 Series, SICAM I/O Modules

DC8-012-2.06, Edition 09.2019

S2

P2

S1

S2

P1

P2

S1

S2

P1

P2

CM-8820

AI-8510

AI-8510

CM-8820

Unrestricted

Standard I/O Modules

59