Features of Partial Discharges in Bubbles Irradiated With X-Rays

被引：0

作者：

Korobeynikov, Sergey M. ^{[1
]}

Ridel, Alexander V. ^{[1
]}

Bobrovskaya, Svetlana S. ^{[1
]}

Shevchenko, Vladimir E. ^{[1
]}

机构：

[1] Novosibirsk State Tech Univ, Power Engn Fac, Novosibirsk 630073, Russia

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2025年 / 32卷 / 01期

基金：

俄罗斯科学基金会;

关键词：

X-rays; Oil insulation; Electrons; Power transformer insulation; Helium; Partial discharges; Lead; Bubble; helium; initiating electron; partial discharge (PD); transformer oil; X-ray; OIL; DEGRADATION; MECHANISM;

D O I：

10.1109/TDEI.2024.3466111

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The effect of X-ray radiation on the possibility and probability of partial discharges (PDs) origin in free-floating helium bubbles in transformer oil under the action of alternating voltage has been experimentally and analytically studied. The interelectrode region, where single helium bubbles floated, was exposed to X-ray pulses. In the absence of absorbing lead screens, radiation initiates PD in all bubbles in which the conditions for PD inception according to Paschen's law are met. The number of PDs was significantly reduced in the presence of screens with a thickness of 2-5 mm. The dependences of the probability of PD occurrence at various voltages and screen thicknesses were determined and analyzed. It is shown that the initiating electron appears predominantly as a result of the ionization of liquid atoms located near the surface layer of the bubble.

引用

页码：428 / 434

页数：7

共 21 条

[1] Partial Discharges Characterization in Spherical Voids using Ultra-short X-ray Pulses [J].

Adili, Sedat ;

Franck, Christian M. .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2014, 21 (02) :791-799

[2] Application of Pulsed X-ray Induced Partial Discharge Measurements [J].

Adili, Sedat ;

Franck, Christian M. .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2012, 19 (05) :1833-1839

[3]

[Anonymous], NIST: Physical Meas. Laboratory

[4]

[Anonymous], 2016, NIST XRAY MASS ATTEN

[5] Partial discharges - Their mechanism, detection and measurement [J].

Bartnikas, R .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2002, 9 (05) :763-808

[6] BUBBLE FORMATION IN POWER TRANSFORMER WINDINGS AT OVERLOAD TEMPERATURES [J].

HEINRICHS, FW .

IEEE TRANSACTIONS ON POWER APPARATUS AND SYSTEMS, 1979, 98 (05) :1576-1582

[7]

Korobevnikov Sergey, 2021, 2021 IEEE 22nd International Conference of Young Professionals in Electron Devices and Materials (EDM), P251, DOI 10.1109/EDM52169.2021.9507603

[8] Study of partial discharges in liquids [J].

Korobeynikov, S. M. ;

Ovsyannikov, A. G. ;

Ridel, A., V ;

Karpov, D., I ;

Lyutikova, M. N. ;

Kuznetsova, Yu A. ;

Yassinskiy, V. B. .

JOURNAL OF ELECTROSTATICS, 2020, 103

[9] Mechanism of partial discharges in free helium bubbles in transformer oil [J].

Korobeynikov, S. M. ;

Ridel, A. V. ;

Karpov, D. I. ;

Ovsyannikov, A. G. ;

Meredova, M. B. .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2019, 26 (05) :1605-1611

[10] Registration and Simulation of Partial Discharges in Free Bubbles at AC Voltage [J].

Korobeynikov, S. M. ;

Ridel, A. V. ;

Medvedev, D. A. ;

Karpov, D. I. ;

Ovsyannikov, A. G. ;

Meredova, M. B. .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2019, 26 (04) :1035-1042

← 1 2 3 →