EN | RU    
Scientific & Technical Literature Publishing House
Search:

Home»

Contact Us»

Journals»

News»

Preparation of Papers»

Advertising»

Feedback»

Books»

About Us»



advertisement



Instruments and Systems: Monitoring, Control, and Diagnostics

Annotation
<< Back
Mathematical modeling of statistic characteristics of partial discharges in the diagnostics of high-voltage equipment
SHAKHNIN V.A. CHEBRYAKOVA J.S. MIRONENKO J.V.

The paper deals with diagnosis of highvoltage equipment on the statistical characteristics of partial discharges (PD). Shown that
the occurrence of partial discharges in the insulation of highvoltage equipment should be viewed as a stationary or periodic nonstationary
random pulse process. The spectral density of the process is chosen as the diagnostic characteristics of highvoltage insulation.
The mathematical model, which describes the spectral distribution of the electrical noise, is suggested. The model is designed for the
diagnostics of highvoltage equipment with the help of the electrical-noise methods. In order to test the adequacy of the model there
were analyzed the features of the hardware analysis of the spectral density of the noise caused by partial discharges indiagnosed highvoltage equipment. To decrease the discrete components in the spectrum of the signal a counter connection of two identical partial
discharge sensors, disposed on opposite sides relative to the axis of symmetry of the apparatus diagnosed at the same distance from it,
is proposed. Studies have shown that the parameters of the PD in two quite distant areas of the dielectric weakly correlated with each
other and, therefore, the spectral density of the noise at such inclusion sensors are added. To confirm the adequacy of the proposed
model of electrical noise in the insulation of the singlephase electrical power autotransformer the apparatus for the experimental study of the spectral density of electrical noise was invented.
Keywords: high-voltage equipment, diagnostics, partial discharges, random pulse process, autocorrelation function, spectral density
of PD-noise.

Contacts: E-mail: vshakhnin@rambler.ru

Pp. 52-58.

 Sections

«About journal

«Archive

«Thematic focus of the journal

«Formatting rules

«Stages of the review and publication

«Review process

«Editorial and Professional Ethics

«Detecting plagiarism

«Editors and Editorial Board

«News journal


 Journals
...................................
Instruments and Systems: Monitoring, Control, and Diagnostics
...................................
Instrument-Making and Automation Means. Encyclopedic Textbook
...................................
Industrial Automatic Control Systems and Controllers
...................................
Ecological Systems and Devices
...................................
Aerospace Instrument-Making
...................................
Engineering Physics
...................................
History of Science and Engineering
...................................
Music and Time
...................................
Note Album
...................................
Musicology
...................................
Bulletin of the Central Botanical Garden
...................................
Universal History
...................................
Directory of engineer
...................................
Applied Physics and Mathematics
...................................
News Academy of Engineering Sciences A.M. Prokhorov
...................................

Last news:

Выставки по автоматизации и электронике «ПТА-Урал 2018» и «Электроника-Урал 2018» состоятся в Екатеринбурге

Открыта электронная регистрация на выставку Дефектоскопия / NDT St. Petersburg

Открыта регистрация на 9-ю Международную научно-практическую конференцию «Строительство и ремонт скважин — 2018»

ExpoElectronica и ElectronTechExpo 2018: рост площади экспозиции на 19% и новые формы контент-программы

Тематика и состав экспозиции РЭП на выставке "ChipEXPO - 2018"

   Rambler's Top100 Rambler's Top100         


    Management system developed by: ananskikh.ru
© Publishing House "NAUCHTEKHLITIZDAT", 2005-2022