The static switch cabinet (SSC) provides an electrical path
between the output of the UPS modules and the load.
When the UPS modules are off, the SSC provides power to
the load from the bypass AC input source (mains 2). Up to
six (6) modules can be connected to the SSC, supporting
loads as great as 1,500 kVA. UPS modules may be turned
off individually for maintenance, provided that the remaining modules can support the load.
The SSC incorporates a static bypass switch. A wrap-around circuit breaker (Q2S) in the SSC
switches between the UPS module output and the bypass AC input source (when the UPS
modules are off). Optionally, the SSC can be provided with its own maintenance bypass
cabinet (MBC), allowing the SSC and/or any attached UPS module to be serviced while the
load is supplied via the maintenance bypass AC input source.
Figure EPS 6000 Major Internal Components,
1-3 Shared 150 - 225 kVA UPS Modules
ARUZ PCA (BEHIND MTG. PLATE)
