الفهرس 
صفحة العنوانOnly 14 pages are availabe for public view
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Abstract
in the last two decades increased electrical loads and kiffa .As: In
iew of the heavy dependence in all walks of life, both quantitatively
and qualitatively:because of the sensitivity of those loads even minor
banges to the system .these changes cannot be avoided as it relates to
bow the ignition and Criteria therefore phenomena have arisen as a
result of the events of crafty storytelling or operating errors, which led
to losses madej upon one of the most important of those .phenomena
lower qualityThepowercan be described as the quality of the capacity
of the extent achieved these Conditions (the continuity of the
service.differentvoltage.currents of transit efforts bedrm harmonics in
e wave of voltage and current) Good to think that the quality of the
power is the problem of consensus, does the equipment related to the
network are compatible with the network changes, and whether the
capacity provided by the network synchronized with the requirements
of the pregnancy, in both cases the solution to increasing the quality
and capacity, and the Wave The AC adapter is a sine wave without
flawed due to :-the difference at peak times, when the RMS effort
natural value by 180%: 11 0% each half of the session for one minute
so-called inflation (voltage voltage swell) (Anurag ,etal .,2012) .
the retreat is the opposite mode to increase effort RMS it occurs when
the carrying value of the RMS effort on the natural value by
90%: 1 0% each half of the session for one minute (Kim, etal.,
2006)different frequency, the difference in the waveform as a result of
the impuritiesAnd Harmonics.4);all these problems lead to reduce the
quality of the capacity and the cause of the different from the other
and the handling of where the electrical capacity consciencesO-
09879model Knits Together when waves of its efforts in the three
aspects of the sine and pure frequency statute 50Hz and have the same
alue called nominal effort and each corner of 120 degrees between.