The UPS system is housed in a single, free-standing cabinet with safety shields
behind the door for protection against hazardous voltage. Each UPS cabinet has
a centralized system static bypass.
Eaton 93PM G2 output power ratings are based on 50 kVA and 60 kVA rated
uninterruptible power modules (UPMs) installed in 200/240 kVA or 300/360 kVA
UPS frames. A single UPS cabinet can house from one to four or six UPMs.
See
Section 3.8 Basic system configurations
for a full list of available
configurations.
A UPM includes a rectifier, inverter, DC/DC converter, and independent controls.
Each UPM is able to operate independently from the other power modules.
NOTE: Startup and operational checks must be done by an authorized Eaton
Customer Service Engineer or by other qualified service personnel authorized by
Eaton, or the terms specified in the Warranty (see 10.2 Whom to contact in case
of Warranty) become void. This service is offered as part of the sales contract for
the UPS. Contact service in advance (usually a two-week notice is required) to
reserve a preferred startup date.
3.2
Looking inside the UPS system
The system level static bypass in the Eaton 93PM G2 UPS cabinet determines
the attainable output power of the UPS. The static bypass line consists of static
switch, a back feed protection isolation device and fuses designed to protect the
static switch. The back feed protection and bypass fuses are located in series
with the static switch. In addition, there is a system level control unit that
constantly monitors the power delivered through the bypass line or to the input of
the UPS. Transfers to static bypass are seamless and performed automatically
by the system as needed, for example, in case of an extended system overload.
Each UPM includes a rectifier, DC/DC converter, inverter and independent
controls. Each UPM is able to operate and share the load independently, despite
the status of the other UPMs.
If utility power is interrupted or falls outside the parameters specified in
Section
, the UPS uses a DC supply (i.e. battery, super
capacitor, etc.) to maintain power to the critical load for a specified period of time
or until the utility power returns. For extended power outages, the UPS allows
you to either transfer to an alternative power system (such as a generator) or
shut down your critical load in an orderly manner.
© Eaton Corporation plc 2020. All rights reserved.
Revision: 001
Document ID: P-164000956
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Eaton 93PM G2 UPS 50 – 360 kVA
User’s and Installation Guide
