نتایج جستجو برای: power quality parameters
تعداد نتایج: 1703331 فیلتر نتایج به سال:
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45 eregulation of the energy market is bringing about a fundamental change in the way power equipment assets have to be operated, maintained and replaced. High power-equipment performance is key to cost-efficient energy trading and to the success of the efforts being made by utilities to satisfy end-user demand for high power quality . Three main trends are shaping power equipment life manageme...
بررسی ارزش غذایی تاغ و عمل آوری آن با سود و آهک در مراحل مختلف رشدبا استفاده از روش کیسه های نایلونی
abstract this study is carried out to determine the chemical composition in the three vegetative stages of the haloxylon sp., degradation parameters, with adding naoh and ca(oh2 ). for this purpose, in may and october and january 2010 enough some haloxylon sp. of the ammary area was prepared. crude protein and ash percentage are decrease, neutral detergent fiber percentage with pragress stage ...
ultrasonic testing (ut), a nondestructive testing (ndt) method, is under development for quality determination of agricultural products, although it has long been used in the food industry. determination and measurement of product quality are important in modern agricultural research. noninvasive/nondestructive quality determination is a novel aspect of the postharvest process in which paramete...
In recent years, power quality measurements are one of the research topics of the Instrumentation and Measurement Group of Instituto de Telecomunicações. This paper summarizes the latest achievements. The paper describes the proposed algorithms for detection and classification of power quality disturbances and the new measuring instruments that were developed.
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