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PCS100 UPS-I
User Manual
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5
SUBASSEMBLIES
The PCS100 UPS-I consists of the following subassemblies:
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A Utility Disconnect that disconnects the utility supply during a disturbance
–
Inverters that convert energy storage DC energy to 3-phase AC power
–
Float Charger to charge the energy storage when the utility is operating normally
–
A Fail-Safe Bypass to automatically bypass the PCS100 UPS-I when a fault occurs.
Note: The Fail-Safe Bypass is optional in some models.
–
A Coupling Transformer to match the inverter output with the nominal utility voltage.
Note: There are two Coupling Transformers for 3 MVA systems.
–
Energy Storage (Ultracapacitor or battery) that supplies power to the load during a utility
disturbance
Together, these sub-assemblies are referred to as the PCS100 UPS-I system. Small PCS100 UPS-I models have
multiple sub-assemblies in one enclosure. Large PCS100 UPS-I models may have one sub-assembly housed in
multiple enclosures.
Input
Energy Storage
(Batteries or
Ultracapacitors)
Coupling Transformer
Circuit Breaker
Coupling
Transformer
Float Charger
Supply Fuses
Float
Charger
Utility Disconnect
PCS100
Inverters
Auxiliary Master Module
GDM (HMI)
DC Fuses
DC
Circuit Breaker
Fail-Safe Bypass Enclosure
Coupling Transformer
Enclosure
Inverter Enclosure/s
Energy Storage
Enclosure/s
PCS100 UPS-I
Output
Utility Disconnect
Enclosure
Blocking Diodes
SW1/SW2
DC
Fuses
Blocking
Diodes
Ultracapacitor
Storage Only
Fail-Safe Bypass
Figure 5-1: PCS100 UPS-I SLD with enclosure definition
These sub-assemblies are described in the following sections.
Summary of Contents for PCS100 UPS-I
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