SIEMENS
ROBICON Perfect Harmony
Liquid-cooled drives
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Siemens D 16.2 – 2012
Benefits (continued)
Application
Extended reliability
The ROBICON Perfect Harmony drive provides an integrated
transformer which offers the following additional advantages:
• Simple and robust way to cancel input current
harmonics without the need for input harmonic filters or
a complex active frontend
• Protects power converter semiconductors against
line transients
• Improves ride-through capabilities
• Completely protects the motor in case of a ground fault
in the converter, the motor cabling or insulation
• Negligible common mode voltage allows the use of a
standard motor eliminating the need for special
high-voltage insulation
• Limits the fault energy into the converter in the unlikely
event of a fault
• The incoming service voltage doesn’t have to match the
motor voltage
Factory test offers the following advantages:
• Each transformer and converter is tested as a complete
unit at full load prior to delivery
• Factory testing allows accurate efficiency measurements
to ensure that drive performance meets customer
specifications
• Verification of sequence of operation and protection
functions
Installation and maintenance
• The ROBICON Perfect Harmony drives are easy to install
and maintain
1)
• Customer needs to provide three cables in and three
cables out. There is no customer site cabling required to
connect the assembled sections.
• Power cells can be pulled out easily for maintenance due
to their reduced weight and front accessible connections
• Sophisticated microprocessor-based diagnostics pinpoint
the location of any defects
ROBICON Perfect Harmony typical applications
The ROBICON Perfect Harmony WCIII is regularly applied by
the most reliability and quality conscious industries in their
most demanding applications, for example:
• Industrial pumps and fans.
• Oil and gas pumps and compressors, and high speed
compressors
• Induced and forced draft boiler blowers for power
generation
• Multi-motor synchronous transfer applications (such as
pipelines in the oil and gas industry)
Introduction
1)
Commissioning of the drive has to be done by Certified Siemens
Field Personnnel.