Riello UPS Sentryum S3M, Руководство по установке

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Output protections (recommended values for selectivity)
Table 13
Normal fuses (GI) In (Nominal current)/4
Normal switches (C curve) In (Nominal current)/4
Ultra-fast fuses (GF) In (Nominal current)/2
S
HORT CIRCUIT PROTECTION
If a failure at the output occurs, the UPS protects itself by limiting the value and duration of the output current (short-circuit current).
These values also depend on the operating status of the UPS at the time of the failure; there are two different scenarios:
 UPS in NORMAL OPERATION with a bypass supply: the load is instantly switched to the bypass line (I
2
t see table below):
the input line is connected to the output without any internal protection (blocked after t > 500ms).
UPS (kVA) I
2
t [A
2
s]
Table 14
10 20000
15- 20 35000
 UPS in BATTERY OPERATION or in NORMAL OPERATION without a bypass supply: the UPS protects itself by supplying
2.7 times the nominal current to the output for the first 200ms, which is then reduced to 1.5 times nominal for 300 ms. After
this time (500 ms) it switches off.
S
HORT CIRCUIT WITHSTANDING
This equipment is rated for use in a circuit capable of delivering no more than the current as per the table below at 240V maximum.
UPS (kVA) Short circuit symmetrical amperes WITHSTANDING
Table 15
10 6000 (6 kA)
15- 20 10000 (10 kA)
I
NTERNAL PROTECTIVE DEVICES
The table below shows the sizes of the switch disconnectors of the UPS and the sizes of the battery fuses: these devices are accessible
either from the front (ACTIVE and XTEND versions), or from the rear for the COMPACT version.
There is also data in relation to the rating of the internal fuses (not accessible) which protect the input and output lines, along with the
maximum input and rated output currents.
Fuses must be replaced with ones of the same size and the characteristics as indicated in the table below.
Switches and internal protective devices
Table 16
Disconnect switches and fuse holders Internal Fuses
UPS
model
SWIN
SWOUT /
SWBYP
(
*
)
/ SWMB
SWBATT
(
**
)
Rectifier input fuses
Battery stage
fuses
Output fuses
3P+N P+N
10 63A (4P) 63A (2P)
32A gG 400V
(10x38)
25A FF 500V
(6.3x32)
3x25A FF 500V
(6.3x32)
20A FF 500Vdc
(6.3x32)
4x20A FF 500V
(6.3x32)
15 125A (4P) 100A (2P)
50A gG 400V
(14x51)
2x25A FF 500V
(6.3x32)
6x25A FF 500V
(6.3x32)
32A gR 500V
(10x38)
6x20A FF 500V
(6.3x32)
20 125A (4P) 100A (2P)
50A gG 400V
(14x51)
2x25A FF 500V
(6.3x32)
6x25A FF 500V
(6.3x32)
32A gR 500V
(10x38)
6x20A FF 500V
(6.3x32)
( * ) SWBYP: COMPACT = not available; ACTIVE = optional; XTEND: present
( ** ) Warning: SWBATT disconnect only the batteries contained in the UPS cabinet