Sirikov A. Electric control of the degree of sector pollution of high-voltage standoff isolators under the operating voltage

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0409U005412

Applicant for

Specialization

  • 05.11.13 - Прилади і методи контролю та визначення складу речовин

12-11-2009

Specialized Academic Board

Д 64.050.09

National Technical University "Kharkiv Polytechnic Institute"

Essay

Object of study – processes of the control of pollution of a surface of high-voltage standoff isolators. The purpose of dissertational study – improvements of a method of the electric control of a degree of pollution of high-voltage standoff isolators under a working voltage and development on its basis of system of technical diagnostics. Methods of study – theories of technics of high voltage and electrical engineers; differential and integral calculus; the statistical analysis; computer modelling. Results of study – the opportunity of an electric method on the control of sector pollution, over a conclusion of isolators from operation is distributed. Novelty – is proved an opportunity of the control by an electric method of sector pollution of isolators without their conclusion from operation by measurement of a jet component of a current of outflow. The developed bases for realization not only the control, but also gradings of controllable objects (isolators) for what the corresponding equation of transformation is received. The informative attribute is chosen (jet compound a current of outflow), the threshold of grading (critical value of a current of outflow) is entered and means of realization of grading are offered. The approach for the account of influence of factors of an environment (temperature and is offered to humidity of air) and to instability of a working voltage on results of the control. It is introduced – on a substation "Kirovograd" 150/35/10 kV public corporation " Kirovogradoblenergo"; complete plant of the branch establishment "Teploenergocentral" limited company "High power technologies" (Kirovograd); in educational process KNTU. Scope – at the enterprises which have complete switching centres a voltage up to 10 kV.

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