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Rotary Diesel UPS
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Description of Operation
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References
The Hitzinger Dynamic Rotary Diesel UPS,
uninterruptable power supplies, system comprises of four major
components: diesel engine, generator, kinetic energy storage module
and coupling choke. The kinetic energy module, generator and
coupling choke work together to provide power conditioning and ride
through energy for the UPS system, whilst the
diesel engine provides the long-term back up for a mains failure.
These systems provide extremely high availability and reliability in
case of mains failure and high efficiency during stand-by operation
because of carefully design and individual components selection.
Mains failure of as a little as a millisecond will cause serious
consequences and expensive production outage and subsequent mistake
costs in a wide range of industrial, electronical, airports,
computer centres and healthcare applications.

Maximum availability and reliability
The reliability of Hitzinger Rotary Diesel UPS systems is the result of product philosophy with the use of a minimum number of system components having an optimum quality standard.
Coupling Choke
Within a Diesel UPS system the
coupling choke connects the input grid supply with the UPS high
quality output supply. It allows large voltage differences between
both AC systems by means of reactive currents for any direction,
independent of the active power flow. The special design of the
choke provides a high degree of de-coupling in both directions
between the input and the output. The Coupling choke provides:
Static and transient voltage decoupling of the input mains and the
UPS bus -Harmonic filtering -Input load levelling irrespective of
100 % unbalanced output load -Input Power factor correction > 0.98
from 0 - 100 % load at nominal voltage. In the event of input short
circuit the current flow towards the grid network is limited by the
choke to < 200 % I nominal until the input is disconnected. During
this transient the current feed back to the mains is wholly
reactive, ensuring all the kinetic stored energy can be fully
utilised for the critical load.
Hitzinger Diagnostic and Monitoring System
Hitzinger offers complete information software package for monitoring and control of the power supply systems through serial interfaces over a network, intranet or remote connectivity via modem links etc.
Typical Schematic Diagram
1 Diesel engine
9 Consumer power switch
3 Electromagnetic clutch
10 Alternator guards
4 Kinetic module
11 By-Pass- Power switch
6 Synchronous alternator
12 Grid supply
7 Choke
13 User output of UPS
8 Grid power switch
15 Voltage peaks
14 Harmonic distortion
16 Voltage cut-offs
17 Interruptions
Specification
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Rating: up to 2500 kVA Voltage: up to 11 kV direct Dual output units
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MTBF value: >1M hours
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Availability: >99.9999 %
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Low MTTR value
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Low maintenance costs
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Battery less solution
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High overload capacity
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Efficiency up to 96 %
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Electromagnetic clutch
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Power factor improvement
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Brushless design, no slip rings
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Reduced plant room footprint
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Maximum availability and reliability
For more information on the Rotary Diesel UPS systems you can Contact Us or Request a Brochure


