User Guide

Installation Instructions IM584000300
Spec. No. 584000300 (Model 4015-X003) Issue AB, April 3, 2013
Chapter 3. Making Electrical Connections Page 29
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DC Load Distribution Electrical Connections to List 21-24 DC Load
Distribution Sub-Rack(s) (if furnished)
Danger: Adhere to the “Important Safety Instructions” presented at the front of
this document. DO NOT attempt to work on an energized system.
Warning: Check for correct polarity before making connections.
HRMG (High Resistance Midpoint Ground) Configuration
Load distribution leads are connected to the load distribution devices as shown in Figure
3-11.
NPG (Negative Pole Ground) Configuration
Load distribution leads are connected to the load distribution devices and return busbar
as shown in Figure 3-11. Note that the return busbar is connected to ground as
described in “NPG Configurations Only: Return Busbar (-Bus) Grounding Connection on
page 17.