S&C Instruction Sheet 653-506
11
Enclosure
DANGER
Do not enter the system enclosures unless trained, certified, and authorized to do so by
S&C Electric Company . Physical entry into the enclosure should never be attempted while
the system is enabled or when the modules are online . Voltages up to 600 Vdc and 15
kVac should be expected under normal operating conditions . Dc voltage is present even
without the utility power connected .
The enclosure is meant to provide access for field-troubleshooting purposes only when
properly grounded . Never, under any circumstances, open the enclosure doors while it
is online or has not been fully discharged and grounded . Failure to do this can result in
equipment damage, personal injury, or even death .
Air conditioner
Transformer bay air outlet hoods
Transformer bay
(rear of enclosure)
Ac filter capacitor section
Control bay
Power control module section
Battery bay
Figure 1. Location of the bays, sections, and components of a 2.25-MW/2.5-MVA PureWave UPS
System enclosure.
Components and Controls