Eaton 93PR Series, Руководство пользователя и инструкция по установке, Страница: 29 / 98

25-75 kW
User's and Installation Guide 20
2.6 Battery System
The battery system provides emergency short-term backup power to safeguard operation during brownouts,
blackouts, and other power interruptions. By default, UPS is configured to use VRLA batteries. Should there
be a need to connect other type of batteries or other energy storage means, a certified service technician
should be consulted prior to proceeding with installation.
93PR 25-75 kW units
The Eaton 93PR25-75kW UPS is including internal battery version and external battery version. The external
battery version UPS supports external batteries.
For detailed battery specifications, see Chapter 8 Technical data.
2.7 Basic System Configurations
UPS Power Rating
The maximum attainable UPS system power rating is determined by the size of static bypass. The number
of UPM power modules determines the nominal power rating of the UPS. If upgradeability is required, the
system static bypass should be chosen according to the future maximum load rating, and number of UPMs
is chosen according to Day1 capacity requirements.
The following UPS configurations with different static bypass sizes and number of UPMs are possible:
Table 2-1: UPS Configurations
description UPS power rating Upgradeability
Size of bypass and
size of the frame
93PR-25(75) 25 kW to 75 kW 75 kW
93PR-50(75) 50 kW to 75 kW 75 kW
93PR-75(75) 75 kW - 75 kW
A single UPS frame can house maximum three UPM power modules, resulting in maximum power rating of
75 kW. In addition, the UPS frames can be connected in parallel to create even larger systems. A maximum
of four UPS can be connected in parallel.