MGE UPS Systems GALAXY PW 100 kVA, Руководство по установке

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E-51028231XU/BH
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Electrical parameters for determining cable cross-sections
Characteristics (cont.)
◗ this table has been drawn up for
rated phase-to-phase AC source and
load voltages of 400 V. For voltages of
380 V or 415 V, multiply the currents for
the bypass AC source and the load by
1.05 and 0.96 respectively;
◗ the current values and cable cross-
sections for the normal AC source are
given for full rated load with a power
factor of 0.8 and a battery consuming
its minimum float charging voltage.
◗ the battery current values and cable
cross-sections have been determined
for a battery at the end of discharging;
◗ the current values and cable sections
for the bypass AC source and load are
given for full rated load with a power
factor of 0.8.
For frequency converters, the
parameters concerning the bypass AC
source are not applicable.
Parameters for cables for a single-UPS unit
Rated UPS Line currents absorbed in Amps Cross-sectional area of Cu cables in mm 2 (2)
output Normal AC source 400 V Battery Normal AC source 400 V Battery
in kVA with or bypass AC with or without battery bypass AC
without battery (1) source and load source and load
20 33 29 52 16 16 16
30 49 43 72 25 25 25
40 66 58 103 35 35 35
50 83 72 128 50 35 50
60 100 87 154 50 50 70
80 133 116 205 95 or 2x50 70 95 or 2x50
100 166 144 256 95 or 2x50 70 2x70
120 199 174 308 95 or 2x50 70 2x70
160 262 231 410 95 95 2x95
200 329 289 512 120 120 2x95
(1) The rated normal AC source currents (In) have
been determined for a minimum float charging
voltage of 423 V and full rated load with a power
factor of 0.8. (2) the cable cross-sections are given for copper
conductors (increase by 30% for aluminium
conductors). They are calculated according to
permissible temperature rise and allow for line
voltage drops over a maximum length of 100 m
(AC circuits) or 25 m (DC circuits if cables not
Recommended protection
provided). For greater lengths, the cross-sections
should be chosen to limit voltage drops to 3% (AC)
or 1% (DC).
protection upstream of
Galaxy PW
The information provided here is purely
indicative, for a single-UPS unit
supplied by a 380 to 415 V, 50 to 60 Hz
distribution system. Check that all the
criteria mentioned in the previous
section are taken into account (short-
circuit current and protection of the
static-switch semiconductors on the
bypass AC input).
Ratings of recommended protection devices upstream of a single-UPS unit
(Merlin Gerin circuit breakers)
Rated UPS Circuit breaker on normal Circuit breaker on bypass
output AC input AC input
in kVA Circuit breaker Control unit Circuit breaker Control unit
20 NS 100N 3P TM 63D NS 100N 4P TM 63D
30 NS 100N 3P TM 63D NS 100N 4P TM 63D
40 NS 100N 3P TM 80D NS 100N 4P TM 80D
50 NS 100N 3P TM 100D NS 100N 4P TM 100D
60 NS 125E 3P TM 125D NS 125E 4P TM 125D
80 NS 160N 3P TM 160D NS 160N 4P TM 160D
100 NS 250N 3P TM 200D NS 250N 4P TM 200D
120 NS 250N 3P TM 250D NS 250N 4P TM 250D
160 NS 400N 3P STR 23 SE NS 400N 4P STR 23 SE
200 NS 400N 3P STR 23 SE NS 400N 4P STR 23 SE
Protection downstream of
Galaxy PW
These protection devices ensure
discrimination for each of the Galaxy
PW output circuits. If the recommended
downstream protection is not installed
and a short-circuit occurs, the result
may be a break longer than 20 ms on
all the other output circuits.
Ratings of recommended protection devices downstream of a single-UPS unit
(Merlin Gerin circuit breakers)
Rated UPS Downstream circuit
output breaker(s)
in kVA Circuit breaker Control unit
20 to 40 kVA C60N C 10A
B 20A
50 to 60 kVA C60N C 20A
B 32A
80 to 120 kVA C60N C 50A
NC100 B 63A
160 to 200 kVA NC100 C 63A
B 100A