socomec SUNSYS HES L, Руководство пользователя

Страница: 75 / 114

SUNSYS HES L - 551697A - SOCOMEC
75
EN
8.6. Digiware package for PMS
3 current probes are provided inside the AC connections compartment, ready to be connected.
The current probes are meant to measure the current on the 3 phases (L1, L2, L3) of the AC side.
The probes are “Rogowski” type and therefore can be opened and installed once the AC power cables are connected.
To connect the probes, follow the procedure below:
- open the probe by releasing the locking system.
- pass the probe around the AC power cables; each probe shall embrace all the cables of the associated phase:
L19  phase L1
L20  phase L2
L21  phase L3
the arrow on the side of the sensor has to point toward the grid side (i.e. it goes from the inside to the outside of
the cabinet).
Figure 60. Rogowski probe
- close the probe with the locking system, then make sure that the probe is properly closed and that all the cables of
each phase are inside the loop
Figure 61. Connection of the probes