14
S&C Instruction Sheet 653-506
Components and Controls
Power Electronic Switch and Switchgear Enclosure
The power electronic switch (PES) and switchgear enclosure houses the PES, which is used to
switch the source from the utility/generator to the PureWave UPS System and vice versa. The
bypass circuitry is also housed in this enclosure, which consists of a source circuit breaker, a
load circuit breaker, and a bypass circuit breaker. See Figure 6. See Figures 7 and 8 on page
15 for the location of the other main components of the enclosure.
Control panels
Air conditioner
Source circuit breaker
Bypass circuit breaker
Load circuit breaker
Figure 6. Power electronic switch (PES) and switchgear enclosure (front view with doors removed).
