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Rotating Frequency Changers
PPI Engineering Ltd provides ongoing support for large 50:60 Hz frequency changer units in the UK and Overseas
which are used to provide 60 Hz shore supplies for docked vessels.
We can also support 50:400 Hz, 60:400 Hz and other frequency multiples for use in military and civil aviation,
rail signalling and other applications.
PPI is the market leader in providing whole of life support for shore based units.
5MVA 50:60Hz frequency changer
Examples of Recent Projects
- Initial installation and the ongoing support of the Frequency Changer sets at UK Naval Bases,
including fitting and monitoring of partial discharge equipment
- Installation, repair work and logistical support for the European Naval Base
- Repair work and changing of the sliprings at various UK Naval Bases
- Guyana, three large Frequency Changers were
installed to assist in the integration of 50 and 60 Hertz systems. Over time further service work was carried out with
the rotors having major repairs and a stator rewind at site
- Our engineers were involved in the installation and commissioning of 3x10MW Frequency Changer sets at a Refinery in Kuwait. After a period of successful operation a project was undertaken to modify
and upgrade the out of date Switchgear Equipment
- Removal and reinstallation of a transformer test facility from the UK to India including 50:60 Hz and
50:200 Hz frequency changer set
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