Delta Modulon DPH series, Руководство пользователя

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Modulon DPH Series
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The external battery cabinet’s protective device must be planned and designed by quali-
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there are four selections, which are (1) a 4-pole DC circuit breaker or DC isolated switch
connected in series with a DC fuse, (2) a 3-pole DC circuit breaker or DC isolated switch
connected in series with a DC fuse, (3) a 4-pole DC circuit breaker and (4) a 3-pole DC
circuit breaker. For relevant values, please refer to
Table 5-6 . When choosing the ex-
ternal battery cabinet’s protective device, please take the following factors into consid-
eration: (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. For
installation methods of the external battery cabinet’s protective device, please refer to
Figure 5-21 ~ Figure 5-24 .
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The protective device is optional, and its type must be fast-acting DC circuit breaker or/
and fast-acting DC fuse. When choosing the protective device, please follow the instruc-
tions below.
(1) The protective device’s rated current must comply with the current values shown in
Table 5-6 .
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current of the fast-acting DC circuit breaker or/ and the melting current of the fast-
acting DC fuse) must be 4 ~ 6 times the values shown in
Table 5-6 . Besides, the
response time of the protective device must be less than 20ms.
(3) For the choice of the fast-acting DC fuse mentioned above, the A50QS series from
the supplier Ferraz Shawmut is suggested. Please contact Delta customer service
for relevant information.
(4) The maximum tripping current of the fast-acting DC circuit breaker and/ or the
maximum melting current of the fast-acting DC fuse mentioned above are 6 times
the values shown in
Table 5-6 . These maximum values are suggested for general
applications only. For actual maximum values, the maximum short-circuit capacity
of the on-site batteries must be taken into consideration. Please contact Delta
customer service for relevant information.
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The external battery cabinet’s protective device installation methods are as follows.
Option 1: Installation of a 4-pole DC circuit breaker or DC isolated switch (voltage per pole
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