scholarly journals Monitoring System of High Voltage Dielectric Equipment

2021 ◽  
Vol 288 ◽  
pp. 01088
Author(s):  
Aleksandr V. Golenishchev-Kutuzov ◽  
Vadim A. Golenishchev-Kutuzov ◽  
Dmitry A. Ivanov ◽  
Anton V. Semennikov ◽  
Tatyana G. Galieva
Keyword(s):  
High Voltage ◽  
Residual Life ◽  
Electrical Equipment ◽  
Partial Discharges ◽  
Premature Aging ◽  
Complex Method ◽  
Sufficient Degree ◽  
Polymer Insulators ◽  
Kinetics Of ◽  
Kinetics Of Reduction

Based on the research of the main causes of dielectric elements premature aging and electrical destruction of primary dielectric elements in high voltage electrical equipment the complex method for remote monitoring of said electrical equipment has been developed. The developed mobile diagnostic device is allowing detection and periodic control of the most dangerous defects. The set of diagnostic parameters of defects was experimentally obtained by using three physical methods (electromagnetic, optical, and acoustic), and allows to inspect the origin and development of defects, and to determine residual life of dielectric elements with a sufficient degree of reliability. The researched characteristics of the kinetics of reduction in operating parameters of polymer insulators permitted the development of the detection of accelerated increase in defects under the influence of ultra-large partial discharges.

scholarly journals Effect of partial discharges on the operating condition of high-voltage insulators

2019 ◽  
Vol 124 ◽  
pp. 03001 ◽  
Author(s):  
A. V. Golenishchev-Kutuzov ◽  
V. A. Golenishchev-Kutuzov ◽  
D. A. Ivanov ◽  
G. D. Mardanov ◽  
A. V. Semennikov ◽  
...  
Keyword(s):  
High Voltage ◽  
Partial Discharges ◽  
Complex Method ◽  
Physical Processes ◽  
Electric Field Gradients ◽  
Remote Diagnostics ◽  
Field Gradients ◽  
Measurement Results ◽  
Local Areas ◽  
Polymer Insulators

The features of the dielectric rod defects and the rod-electrod defects of polymer insulators were investigated by using the developed complex method of contactless remote diagnostics of high-voltage insulators health, which includes the initial detection of local areas with elevated electric field gradients as well as measurement of a set of partial discharges characteristics. The radiation of extra-large partial discharges was detected and partial discharges features were investigated. According to the measurement results, a diagram was constructed for the electro-physical processes that accompany the emission of extra-large partial discharges; and the reasons for their occurrence were established.

scholarly journals Improvement of the technical excellence of multiparameter relay protection by combining the signals of the measuring fault detectors using artificial intelligence methods

2019 ◽  
Vol 124 ◽  
pp. 01039
Author(s):  
A. L. Kulikov ◽  
A. A. Loskutov ◽  
M. Mitrovic
Keyword(s):  
Partial Discharges ◽  
Complex Method ◽  
Physical Processes ◽  
Electric Field Gradients ◽  
Remote Diagnostics ◽  
Field Gradients ◽  
Measurement Results ◽  
Local Areas ◽  
Polymer Insulators ◽  
Fault Detectors

The features of the dielectric rod defects and the rod-electrod defects of polymer insulators were investigated by using the developed complex method of contactless remote diagnostics of high-voltage insulators health, which includes the initial detection of local areas with elevated electric field gradients as well as measurement of a set of partial discharges characteristics. The radiation of extra-large partial discharges was detected and partial discharges features were investigated. According to the measurement results, a diagram was constructed for the electro-physical processes that accompany the emission of extra-large partial discharges; and the reasons for their occurrence were established.

scholarly journals Comparative analysis of options for project financing of energy development based on renewable sources

2019 ◽  
Vol 124 ◽  
pp. 04021
Author(s):  
O. V. Luskatova ◽  
M. V. Roberts ◽  
E. N. Dolzhenko
Keyword(s):  
Partial Discharges ◽  
Complex Method ◽  
Project Financing ◽  
Physical Processes ◽  
Electric Field Gradients ◽  
Remote Diagnostics ◽  
Field Gradients ◽  
Measurement Results ◽  
Local Areas ◽  
Polymer Insulators

The features of the dielectric rod defects and the rod-electrod defects of polymer insulators were investigated by using the developed complex method of contactless remote diagnostics of high-voltage insulators health, which includes the initial detection of local areas with elevated electric field gradients as well as measurement of a set of partial discharges characteristics. The radiation of extra-large partial discharges was detected and partial discharges features were investigated. According to the measurement results, a diagram was constructed for the electro-physical processes that accompany the emission of extra-large partial discharges; and the reasons for their occurrence were established.

scholarly journals STUDY AND PERFORMANCE OF PARTIAL DISCHARGE OF MODEL FOR DIFFERENT TYPE INSULATION MATERIALS WITH CAPACITANCE VALUE

2021 ◽  
Vol 8 (12) ◽  
pp. 323-327
Author(s):  
Neetu Baghelkar ◽  
Abhishek Dubey
Keyword(s):  
High Voltage ◽  
Transmission Lines ◽  
Partial Discharge ◽  
Electrical Equipment ◽  
Partial Discharges ◽  
Electrical System ◽  
Insulating Material ◽  
Different Types ◽  
And Performance ◽  
Short Time

The properties of the insulating material must be the best to avoid failure of electrical equipment. Partial discharges act as electrical sparks that occur within insulation and the high-voltage electrical system. The different types of voltage and current pulses are produced, which last for a very short time. Partial discharge is taking place in high voltage power equipment such as cables, transmission lines and transformers, etc.

PROCEDURE FOR CONTROL OF POLYMER ELECTRICAL INSULATING MATERIALS

2021 ◽  
pp. 24-31
Author(s):  
A. G. Larchenko ◽  
N. G. Filippenko ◽  
A. V. Livshits
Keyword(s):  
High Voltage ◽  
High Frequency ◽  
Residual Life ◽  
Electrical Breakdown ◽  
Polymeric Materials ◽  
Partial Discharges ◽  
Power Lines ◽  
Frequency Of Occurrence ◽  
Insulating Materials ◽  
Operating Modes

The article describes the directions and features in the field of control of power lines. A method is created for determining the prebreakdown state. The dependence of the development of partial discharges in polymeric materials is studied. The process of exposure to high-frequency currents before the onset of a breakdown state under constant operating modes of electrothermal high-voltage equipment is described. The results of the dynamics of the emergence of discharges under high-frequency exposure are given in the form of graphic images. The graph of the dynamics of partial discharges is described. In this work, a methodology for monitoring and protecting against electrical breakdown, when the frequency of occurrence of partial discharges changes. The results of practical tests for diagnosing the residual life of insulation are presented.

Sign in / Sign up

Export Citation Format

Share Document