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Articles 348 records found  beginprevious301 - 310nextend  jump to record: Search took 0.02 seconds. 
301. Rapid dissolved gas analysis by means of electrochemical gas sensors / Zylka, P ; Mazurek, B [I07/02/I-021] [ENY-ARTICLE-2008-050]
Rapid, introductory analysis of gases dissolved in insulating oil DGA carried out in the field can help in effective screening of faulty transformers as well as minimising number of classical laboratory chromatographic DGA tests. [...]
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302. Field emission current from high-Tc ceramic cathodes / Ziaja, J ; Zylka, P [I07/99/P-545] [ENY-ARTICLE-2008-049]
In this work the result of emission phenomena investigations are presented. [...]
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303. Electrochemical gas sensors can supplement chromatography-based DGA / Zylka, P [I07/04/I-035DOI 10.1007/s00202-004-0230-x] [ENY-ARTICLE-2008-048]
Shortening a time gap between oil sampling and its analysis as well as a rapid and correct interpretation of dissolved gas analysis (DGA) results are crucial for effective screening of faulty transformers in predictive-oriented equipment maintenance. [...]
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304. Electrochemical gas sensors can make DGA a portable screening procedure / Zylka, P [RZ I07/04/I-001] [ENY-ARTICLE-2008-047]
Dissolved Gas Analysis (DGA) in its classical chromatography-based laboratory approach has become a routine procedure for testing and assessment of power transformer condition. [...]
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305. DGA system utilising semiconductor gas sensors / Zylka, P ; Mazurek, B [RZ I07/99/I-448SPIE Proceedings Series, ISSN 0277-768X; Vol. 3730] [ENY-ARTICLE-2008-046]
Thermal and electric faults developing inside transformers lead to the generation of gaseous products dissolving in the insulating oil. [...]
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306. Thermally stimulated currents of Zn-Bi-O thin film arresters / Gubanski, A ; Ziaja, J ; Mista, W [AZ I07/03/P-001] [ENY-ARTICLE-2008-045]
Ceramic varistors based on zinc oxide have excellent properties as protection devices used in power industry. [...]
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307. Phase relations in Bi2O3-SrO-CuO system at 800 degrees C / Horyn, R ; Filatow, I ; Ziaja, J ; Wolcyrz, M ; et al [AZ I07/89/P-394] [ENY-ARTICLE-2008-044]
Phase relations in the Bi2O3SrO-CuO system at 800°C are presented. [...]
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308. Time-Frequency Analysis of Complex Space-Phasor in Power Electronics / Leonowicz, Z ; Lobos, T ; Sikorski, T [doi:10.1109/TIM.2007.908250] [ENY-ARTICLE-2008-043]
This paper considers applying nonparametric and parametric methods for the calculation of the time–frequency representation of nonstationary signals in power electronics. [...]
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309. Varistor performance of nanocrystalline Zn-Bi-O thin films prepared by reactive RF magnetron sputtering at room temperature / Mista, W ; Ziaja, J ; Gubanski, A [AZ I07/03/P-004doi:10.1016/j.vacuum.2003.12.141] [ENY-ARTICLE-2008-042]
The Zn–Bi–O films were deposited by reactive radio frequency magnetron sputtering in oxygen atmosphere from ZnBi alloy target (wt. [...]
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310. Effect of area on surface flashover voltage in vacuum / Cross, J D ; Mazurek, B [ISSN: 0018-9367INSPEC:3152462DOI: 10.1109/14.2330] [ENY-ARTICLE-2008-041]
It is known that the breakdown voltage in a vacuum insulation system drops with an increase in linear dimension of electrodes and with an increase in the number of insulating spacers bridging the gap. [...]
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