In case of skewed rotor, one side of the rotor bar is axially shifted from its second side by a fraction of slot pitch
. The flux along the rotor axis therefore significantly varies (skew leakage flux).
The torque ripple is reduced by shifting the pole pairs by half a slot pitch
and choosing the appropriate magnet width of PM motors .
where [[tau].sub.si]/[[tau].sub.so] is the slot pitch
of inner/outer slots and [[theta].sub.i]/[[theta].sub.0] is the slot opening width of inner/outer slots.
Skewing angle should be less or equal to slot pitch
where the interval ([[alpha].sub.1]; [[alpha].sub.2]) is equal to the slot pitch
[[alpha].sub.s] and the interval center lies in the slot center.
The products accommodate card slot pitch
as low as 15 mm and achieve a port-to-port centerline of 12.5 mm along a card edge.
The lower vertical profile enables the power modules to be employed on the same 16.7 mm slot pitch
as the 3-pair signal connectors, or as a means to increase air flow in a chassis having wider slot spacing.
Uprights on the Premierack come in a variety of gauges, have a 50mm slot pitch
and can be reversed should damage occur.
A 12.75" x 7" board was designed to add point-to-point optical distribution technology to an existing 1.2" slot pitch
subrack containing 14 cards cooled by a fan tray with eight fans (FIGURE 1).
Aperture grill pitch, or "slot pitch
," is a similar measurement used by monitors that arrange phosphors into stripes instead of dots.
The GF775 also features an ultra fine 0.24 mm slot pitch
for superior images and crisp, brilliant colors.
Upon selection of the rotor ring slot width [b.sub.r] and rotor ring slot pitch