GE Industrial Solutions Off Line Equalization (OLE) - Manual (Page 13)

Off Line Equalization Panel and Converter for GPS4848/GPS4812
Issue 4 January 2008 Product Description 2 - 1
2 Product Description
Overview
Introduction The distributed architecture configurations of the -48V GPS4848 and
GPS4812 Galaxy Power Systems can be fitted with the Off Line
Equalization (OLE) Panel. The panel can be ordered with or without a
Low Voltage Battery Disconnect (LVBD) contactor.
One panel per bay can be used in multi-bay systems. Each panel
occupies 15 inches of vertical space in the bay.
The OLE panel will accept a custom designed DC/DC converter
(ES671) that provides power to a battery string section taken off line to
be equalized.
Figure 2-1 illustrates the OLE Panel, and Figure 2-2 illustrates the
ES671 DC/DC Converter.
Safety
Certifications
The safety certifications (UL, CE, and/or VDE) applicable to the
installation bay (GPS4848 or GPS4812) will still apply when the
optional OLE panel and converter are installed.
EMI Performance EMI performance continues to meet CISPR 22 Class B for emissions
with the OLE panel installed. However, the system emissions only meet
Class A when the ES671 converter is operating and batteries are being
equalized.