Eaton Power Xpert 9395P-1100/1100, Инструкция по установке и эксплуатации, Страница: 48 / 214

30 Eaton ® Power Xpert ® 9395P-1200 Installation and Operation Manual 164000500—Rev 11
Table 8. 480V Input/Output Ratings and External Wiring Requirements for the Three UPM – Common Battery
Basic Unit Rating
Units
Rating 50/60 Hz
kVA
kW
675
675 750
750 825
825 900
825 900
900
Input and Output Voltage
Volts 480/480 480/480 480/480 480/480 480/480
AC Input to UPS Rectifier (0.98 Minimum pF)
Full load current plus battery recharge current
(3) Phases, (1) Ground
A
Amps
1002 1113 1225 1225 1336
Minimum Conductor Size
Number per Phase AWG or kcmil
(each)
500
(6)
500
(6)
500
(6)
500
(6)
500
(6)
AC Input to UPS Bypass
Full Load Current
(3) Phases, (1) Ground
B
Amps
812 902 992 1083 1083
Minimum Conductor Size
Number per Phase AWG or kcmil
(each)
500
(5)
500
(5)
500
(5)
500
(5)
500
(5)
DC Input from Battery Disconnect to UPS
(3) Phases, (1) Negative
C
Total Amps
1480 1645 1809 1809 1974
Minimum Conductor Size
Number per Pole AWG or kcmil
(each)
500
(12) 500
(12) 500
(12) 500
(12) 500
(12)
AC Output to Critical Load
Full Load Current
(3) Phases, (1) Ground
D
Total Amps
812 902 992 1083 1083
Minimum Conductor Size
Number per Phase AWG or kcmil
(each)
500
(5)
500
(5)
500
(5)
500
(5)
500
(5)
NOTE Callout letters A , B , C , and D map to Figure 68 ..
NOTE If a 4-pole Automatic Transfer Switch (ATS) is used to connect the UPS to a generator or alternative input source, it may
interrupt the UPS input neutral during its transition between sources. For the 9395 UPS:
The ATS transition must be open in both directions. The "break" time for the contacts must be at least 50 ms. This allows the UPS to
operate properly,
however it is important to evaluate whether the critical load will function properly as its neutral reference is
rapidly (50 ms) switched. Note also that if the UPS load is on bypass, an ATS switchover with interruption of the neutral, will
interrupt the return current path and cause a loss of all phase-to-neutral loads
.
If an overlapping neutral or make-before-break ATS switch is used, the neutrals must overlap for a minimum of 50 ms during the
transition.
UPS Installation Plan and Unpacking