Emerson ASTEC Helios Candeo AP6C75AA, Руководство по установке

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Cabling and connecting 53
Helios Candeo Power System – AP6C75AA Installation Manual
Connect the AC supply to the rectifier AC interface modules as described in
Procedure 4.3 and as shown in Figure 4.8. If bulk wiring is used, the optional
AC box, channel and conduits as shown in Figure 4.5 should have been installed
prior to starting the procedure. Note that in individual cables are used, the
installation procedure is similar for top and bottom fed systems.
WARNING
Preventing electrical shocks
When wiring the AC input of the rectifiers, ensure that the
associated AC breakers, located in the AC service panel, are in
the OFF position and that a warning tag clearly indicates that
these breakers are to remain OFF until the AC wiring has been
completed. Do not insert fuses, or operate circuit breaker or
switches to ON until the whole plant is assembled and you are
instructed to do so.
Procedure 4.3 – Cabling and connecting the rectifier AC interface modules
Step Action
1 Install the required number and type of circuit breakers at the AC service panel.
2 Ensure that the circuit breakers installed per step 1 are locked in the open (OFF)
position.
3 Determine the length of the cables (or individual wires in conduit) required to
bring the AC supply from the AC service panel to the rectifier positions.
4 Cut the cables (or wires) to the required length, then run and secure these
between the AC service panel and the Helios Candeo frame.
5 For bulk wiring in conduits, bypass steps 6 to 10 and go to step 11. For
individual armored cables, proceed with step 6.
6 Strip the sheeting and insulation material away from the ends of the cables to
expose the wires approximately 12” at the rectifier level.
7 Feed the cables incoming through the AC channel down or up the channel to the
appropriate rectifier position.
8 For those rectifier positions fed by individual cables incoming inside the frame
upright, install a strain relief connector on the rectifier AC interface module,
feed the cables through the strain relief connectors, use a flat blade
screwdriver to tighten the strain relief connectors, and then place and secure
the rectifier AC interface module in place (refer to Figure 4.6).
9 If applicable, install the required strain relief connectors for the cables that will
be incoming from the outside of the frame (refer to Figure 4.7).
–continued–