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Three Phase Bridge Rectifier



Three Phase Bridge Rectifier

Find out about three phase bridge rectifiers

electric circuit | storage | general
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Most wind turbine and hydro permanent magnet alternators output three phase alternating current (AC) electricity. In order to get this generated power into a battery bank, it must first be rectified into direct current (DC) electricity.

Three phase bridge rectifier made from six diodes

Through our website we have many articles which explain how you can put together a suitable bridge rectifier ranging from the DIY from scratch Make a Bridge Rectifier from Diodes to our guide to Building Your REUK 3 Phase Bridge Rectifier (which describes how to make the final connections for the complete kit we sell in the REUK Shop).

Three Phase Bridge Rectifiers

However, rather than using individual diodes or one (or more) bridge rectifier per phase, three phase bridge rectifiers are available with five contacts - one for each phase from the alternator, and the positive and negative outputs.

Three phase bridge rectifier

Pictured above is one such three phase bridge rectifier rated at 60 Amps and a maximum voltage of 1200V. It has dimensions of 8 x 4 x 2.5cm and was listed for sale on eBay*.
* Note that these are extremely rare on eBay UK, so expect to pay international delivery on your purchase.

100 Amp three phase bridge rectifier - Toshiba

Similarly the unit pictured above was also found on eBay and is a 100 Amp rated three phase bridge rectifier manufactured by Toshiba and offered for sale in USA (but with international delivery offered).

The best search to use to find these components is 3 Phase Rectifier (click here to search now - there were over 30 listed at the time this article was written in August 2008).
Note that tou may also find a couple of suitable bridge rectifiers listed as Three Phase Rectifier.
Article Last Modified: 17:13, 18th Sep 2008

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If you have any comments on this article, please email them to neil@reuk.co.uk.


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