Eaton Power Xpert 9395 UPS, Инструкция по установке и эксплуатации

Страница: 79 / 250

UPS System Installation
Power Xpert
TM
9395 UPS (450–825 kVA) Installation and Operation Manual 164201725—Rev 10 www.eaton.com/powerquality 4-19
4.5 Field Installed UPM Installation
If installing a Plus 1 model or adding the FI-UPM to an 825/550 model, install the FI-UPM using the instructions
in the
Power Xpert 9395 Field Installed UPM Mechanical Installation Manual , listed in paragraph 1.7. After the
FI-UPM is installed, proceed to paragraph 4.6 if installing a battery system; otherwise, proceed to paragraph 4.7.
4.6 Battery System Installation
If installing a battery system, install the customer-supplied battery system according to the battery and battery
system manufacturer's instructions and all applicable codes and regulations, including the NEC, Article 480.
After the battery system is installed, proceed to paragraph 4.7 if installing a distributed bypass tie cabinet;
otherwise, proceed to paragraph 4.8.
4.7 Distributed Bypass Tie Cabinet Installation.
If installing a distributed bypass system, install the customer-supplied tie cabinet or distribution panel
according to the tie cabinet or distribution panel manufacturer's instructions and all applicable codes and
regulations, including the NEC, Article 480. After the tie cabinet is installed, proceed to paragraph 4.8 to
complete the wiring of the UPS.
In the case of parallel Distributed Bypass configurations, wiring for the common system neutral reference will
also be connected to E12 of each module and this common system neutral reference wiring will be routed to
the output switchgear cabinet and connected to an isolated / ungrounded bus which is common with the
wiring from the E12 terminal of all other paralleled modules of the Distributed Bypass system.
4.8 Installing UPS External and Battery Power Wiring
CAUTION
HIGH IMPEDANCE GROUND SOURCES - If the supply source is a high impedance ground (IT) type, the
input neutral conductor must be connected from the source of supply. If there is no output neutral
connected to the UPS, the neutral–forming transformer kit may be used instead of pulling a neutral from
the source. If the load requires a neutral, then an input neutral conductor must be pulled into the UPS. In
no circumstances shall a neutral to ground bonding jumper be installed in the UPS
DELTA SOURCES (TN-S) - The UPS cannot be operated from a mid-point or end-point grounded delta
supply source. With this type of supply source, there is no capability to provide an output neutral. In no
circumstances shall a neutral to ground bonding jumper be installed in the UPS.
NOTE The tie cabinet must contain Module Output Breakers (MOBs) with dual auxiliary
contacts for control of the system. Without dual auxiliary MOBs, UPMs are not
allowed to go to bypass individually during servicing. All UPMs will go to bypass
instead of the just the UPM needing service, decreasing critical load protection.
With dual auxiliary MOBs, one UPM can be bypassed while the remaining UPMs
support the load as long as the remaining UPMs have the capacity to do so.
NOTE The ISBM and UPM sections are shipped with debris shields covering the
ventilation grills on top of the sections (see Figure 4-18). Do not remove the debris
shields until installation is complete. However, remove the shields before operating
the UPS. Once the debris shields are removed, do not place objects on the
ventilation grills.
NOTE Remove the ISBM section top or bottom conduit landing plate to drill or punch
conduit holes (see Figure 4-19).
NOTE If the load requires a neutral, a bypass source neutral must be provided. If the load
does not require a neutral and there is no neutral conductor connected at the
bypass input, a neutral to ground bonding jumper must be installed. DO NOT install
both a source neutral and a bonding jumper. See Table 3-4 through Table 3-7 for
neutral bonding jumper wire sizes. Bonding jumper must be copper wire.