CPS C3T, Руководство пользователя

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MT-HC3TKE301406NP-US 00 pag 13/53
4.4 Mains, load and battery connections
The operations described in this chapter must be carried out exclusively by a
specialized technician
.
The first connection to be made is the earth conductor.
THE CPSMUST NOT OPERATE WITHOUT AN EARTH CONNECTION
Before making the connection, open all the switches on the device and ensure that the CPS is completely isolated from
the power sources: battery and AC power line. More specifically, check that:
- the CPS input line or lines are completely isolated;
- the battery cabinet disconnector / fuse (if present) is open;
- all the CPS disconnectors - SWIN, SWBY, SWOUT and SWMB - are in the open position;
- check with a multimeter that there are no dangerous voltages on the terminal board.
For connection of the power cables to the terminal boards, refer to the “INSTALLATION DRAWINGS”
provided with the CPS and with the battery cabinet, if present.
Input neutral
The power supply to the CPS input (by-pass line) must be three-phase with neutral.
The neutral conductor is necessary only on by-pass line
.
Input line without neutral.
The transformer must be inserted either on the mains supply line or on the by-pass line (as shown in the drawings).
-transformer on the bypass line only
MAINS LINE
UPS
LOAD
3Ph+N
or
OPTIONAL
MAINS LINE
UPS
LOAD
3Ph+N
BY-PASS LINE
or
OPTIONAL