12
cables as described in the following procedure.
Verify the UPS is totally isolated from its external power source and also all
power isolators of the UPS are open. Check to see if they are electrically isolated, and
post any necessary warning signs to prevent their inadvertent operation .
Open the UPS rear panel, remove the cover of terminals for wiring easily.
Choose appropriate power cable.
(
Refer to the table above
)
and pay attention
to the diameter of the connection terminal of the cable that should be greater than
or equal to that of the connection poles;
Connect cables according to indication as above, from left to right are three
phases input, battery and Single phase output(Input R, S, T, N are connected to the
3 phases of the input Line, BAT+, BATN and BAT- are connected to the external
battery box, output L, N are connected to the equipment(load) which is supplied by
the UPS);
WARNING!
If the load equipment is not ready to accept power on the arrival of
the commissioning engineer then ensure that the system output cables
are safely isolated at their ends
Connect the safety earth and any necessary bonding earth cables to the
copper earth screw located on the floor of the equipment below the power
connections. All cabinets in the UPS must be grounded properly.
CAUTION!
The earthing and neutral bonding arrangement must be in accordance
with local and national codes of practice.
3.9 Battery connection
The UPS adopts positive and negative double battery framework, total 16(optional
18/20) pieces in series. A neutral cable is retrieved from the joint between the cathode of
the 8
th
(9
th
/10
th
) and the anode of the 9
th
(10
th
/11
th
) of the batteries. Then the neutral
Содержание YDC9300-RT Series
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