Research on the Modeling of Leakage Magnetic Field and Short-Circuit Force of Power Transformer’s Short Circuit Fault
نویسندگان
چکیده
منابع مشابه
the effects of keyword and context methods on pronunciation and receptive/ productive vocabulary of low-intermediate iranian efl learners: short-term and long-term memory in focus
از گذشته تا کنون، تحقیقات بسیاری صورت گرفته است که همگی به گونه ای بر مثمر ثمر بودن استفاده از استراتژی های یادگیری لغت در یک زبان بیگانه اذعان داشته اند. این تحقیق به بررسی تاثیر دو روش مختلف آموزش واژگان انگلیسی (کلیدی و بافتی) بر تلفظ و دانش لغوی فراگیران ایرانی زیر متوسط زبان انگلیسی و بر ماندگاری آن در حافظه می پردازد. به این منظور، تعداد شصت نفر از زبان آموزان ایرانی هشت تا چهارده ساله با...
15 صفحه اولA Comprehensive Mathematical Model for Analysis of WR-Resolvers under Stator Short Circuit Fault
Wound-Rotor (WR) resolvers are the most widely used position sensors in applications with harsh environmental conditions. However, their performance is exposed to failure due to the high risk of short circuit (SC) fault. Although the output current of the resolver is negligible, its thin copper wires increase the probability of the short circuit fault. To avoid the propagation of the turn-to-tu...
متن کاملبررسی روش های تشخیص خطای ترانسفورماتور
power transformers are important equipments in power systems. thus there is a large number of researches devoted of power transformers. however, there is still a demand for future investigations, especially in the field of diagnosis of transformer failures. in order to fulfill the demand, the first part reports a study case in which four main types of failures on the active part are investigate...
Short-Circuit Withstand Tests of 2605SA1-based Amorphous Distribution Transformers
This paper deals with EDF Research and Development work for ERDF needs in terms of energy efficiency, focused on Amorphous Metal Distribution Transformers (AMDT). Many prototypes built on METGLAS® 2605SA1, rated 250 to 630 kVA from different manufacturers, were tested under short-circuit conditions according to IEC and ERDF standards. Some of the prototypes exceeded the accepted value of 4% of ...
متن کاملShort-Circuit Current Modeling for CMOS Standard Cells Power Characterization
Short-circuit currents contribute signiicantly to the total power consumption of CMOS circuits. In this paper we describe a procedure to characterize libraries of standard cells in order to extract information on the power dissipation to be used later in logic-level simulators. Ours is a black box approach in which cells are characterized without looking at the internal nodes. The objective is ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Electrical Engineering
سال: 2014
ISSN: 2333-5394,2333-5424
DOI: 10.12677/jee.2014.24010