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MGE UPS Systems Pulsar Esprit 313.5 kVA User Manual

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The Power Cluster Advantage
Traditional N+1
Redundant UPS
N+1
Redundant Server
MGE Esprit
Power Cluster
N+1
Redundant Server
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B
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B
UPS
Batteries
Redundant DC
Power Supplies
CPUs
UPS
Batteries
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Redundant DC
Power Supplies
CPUs
Configuration
Comments
Single point of failure
Traditional redundant UPSs are paralleled at their outputs and provide
a worrisome single point of failure.
Redundant power paths
With Esprit, power sharing is achieved within each server on the DC bus.   
Redundant power sources
Input power connections of servers will be connected to 2 (or 3) different Esprit
modules, providing 2 (or 3) different sources, eliminating a single point of failure.
Esprit, for the first time, provides
MGE’s advanced engineering & design significantly reduces the component 
total power availability combined
count for high availability and reliability at an affordable price. Traditional N+1 
with maximum reliability
UPS redundancy can provide power availability at the expense of reliability with 
multiple sub-assemblies that increase the chance of costly failures.
Power redundancy for servers with multiple power supplies
Most servers provide multiple power supplies for N+1 redundancy. To maintain high availability of the system when considering
power, a redundant configuration as offered with the Esprit Power Cluster is better than traditional N+1 redundant UPSs:
Maximum Availability and Reliability
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2
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Example of 5 PC servers with 3 redundant power supplies:
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Select a 4.5 kVA Esprit Power Cluster
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Connect the first power supply       of each server to the Esprit
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Connect the second power supply      of each server to the Esprit 
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Connect the third power supply      of each server to the Esprit 
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Connect each Esprit to a separate wall outlet.
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Y
Z
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B
C
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C
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C
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C
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C
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Z