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The Rapid-Power mining duty
alternators have been developed to provide serious durability in
extremely demanding conditions. These alternators have many unique
and unprecedented design features.
The first and foremost feature is the
bearing seals, the bearings are sealed with special labyrinth
frictionless seals, these seals provide complete ‘sealed for life’
protection. The bearings in the alternators have massive load
ratings many times beyond the required minimum. The brush-less
rotors are balanced to very high standards, which significantly
further extends bearing life. The rectifiers are manufactured with
215ºC rated diodes inserted into exceptionally large heat sinks and
all connections are welded. The electrical windings have several
coats of silicon-based varnish, which provides significant thermal
and mechanical protection. The regulator “ floats“ in a thermally
conductive potting compound to reduce the effects of vibration. The
housings are manufactured from 6000 series aluminium that provides
much greater mechanical strength than conventional cast alloy
housings. The housings have replaceable steel mounting legs for
further strength and durability. All electrical connections are via
pre wired Deutsch plugs and a field isolation facility is provided.
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