Rockwell Automation 2364F Regenerative DC Bus Supply Unit (RGU) - Manual (Page 18)

Publication 2364F-5.01– October 2003
1-2 Overview
How will the RGU fit into a drive system packaged in FD86N
enclosures?
FD86N enclosure options permit direct connection to Bulletin 2100
CENTERLINE MCCs that:
• are 20" deep
• have 1.5"-high base channels
• have the DC power bus and control bus (if selected) mounted at a
depth of 16.92" from the front of the MCC
How Does An RGU Work? Primary Electrical Components of Your RGU
The primary electrical components of your RGU are:
• a 3-phase motor circuit protector, 3-phase circuit breaker, or a
3-phase motor-operated circuit breaker (depending upon RGU
rating)
• AC line, current-limiting fuses
• AC line reactors
• a power structure
• a main control board
• an isolation board
• a control power transformer
• control transformer fusing (primary and secondary)
These items are shown in the conceptual schematic given in
Figure 1.1, then are described in greater detail.