Powerware 9315s - Manual (Page 59)

7--7 Powerware 9315 Parallel Capacity/Redundant System with PHP SSBM
164201373 Rev. A 092402
7.2.4 Load Bank Mode
The SSBM and SSBM with SMB are both equipped with Load Bank Tabs for the
connection of a temporary load bank.
The Load Bank Tabs allow load testing to be performed on the UPMs or Bypass
input portion of the SSBM or SSBM with SMB.
The SSBM comes standard with temporary Load Bank tabs only.
Figure 7---4 shows the path of electrical power through an SSBM in Load Bank
Mode with Load Bank tabs connected to a temporary Load Bank. Only UPM1 is
shown under testing.
Figure 7---5 shows the path of electrical power through an SSBM with SMB in Load
Bank mode with Load Bank Tabs when connected to a temporary Load Bank. The
SMB is in Maintenance Bypass mode carrying the Critical Load while UPM1 is
shown under testing.
WARNING:
During testing, cables connecting the temporary load bank to the load
bank tabs will have to exit the SSBM or SSBM with SBM via an open
rear door. With the rear door open, personnel are exposed to
energized buswork. To prevent injury from electrical shock, temporary
barriers and warning signs should be established.