منابع مشابه
Dynamic Measurement Uncertainty of Hv Voltage Dividers
− Recently we proposed an approach based on digital filtering for evaluating dynamic non-stationary contributions to the measurement uncertainty. A dynamic simulator instead of a digital filter bank is here utilized for deriving the dynamic measurement uncertainty of mixed capacitive voltage dividers. These are used for lightning impulse measurements, during a calibration measurement of a stand...
متن کاملComparative High Voltage Impulse Measurement
A facility has been developed for the determination of the ratio of pulse high voltage dividers over the range from 10 kV to 300 kV using comparative techniques with Kerr electro-optic voltage measurement systems and reference resistive voltage dividers. Pulse voltage ratios of test dividers can be determined with relative expanded uncertainties of 0.4 % (coverage factor k = 2 and thus a two st...
متن کاملMeasurement of the Magnetic Fields from High-Voltage (230 kV) Substations in Tehran and Assessment of Their Effects
Introduction: Recent industrial developments in human societies have caused rapid advancements in technologies of production and distribution of electricity, which in turn result in enhancement of power networks and utilization of high voltages. These networks and the high voltages in transfer lines cause the exposure to electric and magnetic fields. In this study, the situation regarding the m...
متن کاملMeasurement of Partial Discharges in High Voltage Equipment
In this thesis I investigate the possibility of electrically detecting partial discharges in high voltage equipment. Partial discharges are small events that occur in insulation in the presence of high electric field intensity and manifest themselves as pulses of current superimposed on the high voltage lines. They carry important information about the condition and operation of such equipment....
متن کاملMeasurement uncertainty.
Measurement uncertainty is a statistical parameter which describes the possible fluctuations of the result of a measurement. It is not a mere repeatability but it is at least as high as the intra-laboratory reproducibility. If it is an attribute of a general analytical test procedure it is at least as high as the inter-laboratory reproducibility. Measurement uncertainty can be determined by the...
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ژورنال
عنوان ژورنال: IEEJ Transactions on Power and Energy
سال: 1998
ISSN: 0385-4213,1348-8147
DOI: 10.1541/ieejpes1990.118.11_1224