Digital Equipment HA3000, Руководство по установке

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4–2 INSTALLATION
N
+
-
A
A
U P S I S O L A T I O N
SWITCH Q5N
MANUAL BYPASS
SWITCH Q3BP
597 mm
(23.50 in)
686 mm
(27.00 in)
CONTROL
WIRES
INPUT
CIRCUIT
BREAKER
Q1
BYPASS
INPUT
SWITCH
Q4S
FRONT VIEW
CIRCUIT BREAKER/SWITCH PANEL
RIGHT DOOR & COVER PANEL REMOVED
125 mm
(4.92 in)
210 mm
(8.25 in)
SIDE VIEW
VIEW A - A
UPS
OUTPUT
(FRONT)
NEUTRAL &
BATTERY
(REAR)
BYPASS
INPUT
(FRONT)
MAIN
AC
INPUT
(REAR)
ØA ØB ØC
M K V - A 2 2 0 8 - 9 1
ØA ØB ØC
Figure 4–1 UPS Cabinet Power Wiring Connections
4.2.1 Main AC Input (MAINS1) Connection
The main ac input connection is three-phase, three wires plus equipment ground. The
phase rotation must be A, B, C. Refer to Table 2–1 for the input circuit breaker rating
for the unit you have ordered. Refer to Table 4–1 for the nominal ac input current at
the nominal ac input voltage specified. Size the main ac input cables and upstream
protection devices accordingly.
NOTES
For ease of installation, the ac input connections should be made first.
If only one ac input source is going to be run to the UPS cabinet, jumpers
must be installed from the main ac input connections to the bypass ac input
connections. In addition, a four-wire Wye source must be run to the UPS
cabinet. The neutral
1
wire must be connected to the neutral terminal in the
UPS cabinet.
1
The HA32A-Cx cabinet does not require a neutral conductor or a Wye power source.