Delta Modulon DPH 200kVA, Руководство пользователя, Страница: 104 / 232

5-28
Modulon DPH Series
127(௓
1.
Table 5-5
is based on 12Vdc x 40 PCS batteries (default). If you install
different number of batteries, please contact Delta service personnel for
protective device’s current and voltage.
2. The above-mentioned DC fuse and DC circuit breaker are optional. If you
want to buy any of them, please contact Delta service personnel.
3. If you need to parallel multiple units of external battery cabinets, please
contact Delta service personnel for relevant information.
4. To extend backup time, you can parallel up to four units of external battery
cabinets to the UPS. Please note that (1) the number of batteries in each of
the parallel external battery cabinets and (2) the cable length of each string
of the batteries must be the same.
5. If the number of batteries is lower than 36, the UPS capacity should be
de-rated to 80%; otherwise, it will trigger power module over temperature
protection and the UPS will run in bypass mode.
y
For information about the external battery cabinet connection and wiring, please refer
to
Table 5-3
,
Table 5-4
and
Table 5-5
. For the external battery cabinet’s grounding
information, please refer to
Figure 5-16
and
Figure 5-19
. Only qualified service personnel
can perform wiring or you can perform wiring only under the supervision of qualified
service personnel.
y
The external battery cabinet’s protective device must be planned and designed by
qualified service personnel. There are three types of protective devices, which are (1)
DC circuit breaker, (2) DC isolated switch, and (3) DC fuse (please refer to
Table 5-5
).
When choosing the external battery cabinet’s protective device, please take the following
factors into consideration: (1) over current between the UPS and battery circuit, (2) short
circuit, (3) wire/ cable materials, and (4) local electrical regulations. If you have any
questions about the external battery cabinet’s protective device, please contact Delta
service personnel. Please refer to
Figure 5-21 ~ Figure 5-24
for the installation of the
external battery cabinet’s protective device.
y
A battery can present a risk of electric shock and high short-circuit current. Please handle
it carefully. For selection of the protective device for the external battery cabinet, a DC
circuit breaker or DC isolated switch connected in series with a DC fuse is strongly
suggested. Please refer to
Figure 5-21 ~ Figure 5-22
.
y
If you only use a DC circuit breaker as the external battery cabinet’s protective device,
it is suggested that you parallel several units of external battery cabinets and separately
install an independent DC circuit breaker for each of the parallel external battery cabinets
in order to enhance the sensitivity of current protection.