title: ÐÐ·ÑÑÐµÐ½Ð¸Ðµ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð² ÐºÐ¾Ð½ÑÐ°ÐºÑÐ½Ð¾Ð¼ ÑÐ·Ð»Ðµ Ð¿Ð¾Ð³ÑÑÐ¶Ð½Ð¾Ð³Ð¾ ÑÐ»ÐµÐºÑÑÐ¾Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ñ Ð²ÑÑÐ¾ÐºÐ¾Ð³Ð¾ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Study of processes in the contact unit of a high voltage submersible electric motor
Creators: name: ÐÐ¾Ð»ÑÐºÐ¾Ð², ÐÐ½Ð´ÑÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð­Ð»ÐµÐºÑÑÐ¾Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ð¸
Ð²ÑÑ Ð¾Ð´ Ð¸Ð· ÑÑÑÐ¾Ñ
ÑÐ°Ð·ÑÑÑÐµÐ½Ð¸Ðµ ÐºÐ¾Ð½ÑÐ°ÐºÑÐ½Ð¾Ð³Ð¾ ÑÐ·Ð»Ð°
ÑÐ°ÑÑÐ¸ÑÐ½ÑÐµ ÑÐ°Ð·ÑÑÐ´Ñ
Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ðµ Ð¿ÑÐ¾Ð±Ð¾Ñ
Ð¸Ð¾Ð½Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½Ð½Ð°Ñ ÐºÑÐ¸Ð²Ð°Ñ
Ð¸Ð·Ð¾Ð»ÑÑÐ¸Ð¾Ð½Ð½Ð¾Ðµ Ð¼Ð°ÑÐ»Ð¾
failure
contact node failure
partial discharges
breakthrough voltage
ionization curve
insulation oil

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description: The given work is devoted to studyingthe causes of destruction of the con-tact node of submersible electric motors.The destruction of the contact node leads to the breakdown of the electric motor before the date set by the manufacturer.The tasks that were solved in the course of the study: 1. Study of the structure of high voltage submersible electric motors. 2. Study of the ionization curve of the individual components of the contact node and the assembly of the contact node. 3. Investigation of the breakdown voltage of individual components of the contact node and the assembly of the contact node. 4. Study and research of electrical characteristics of insulating oil. All studies and tests were carried out on the basis of the equipment of Peter the Great St. Petersburg Polytechnic University. The study of the ionization curve and electrical characteristics of the insulating oil was carried out on a laboratory apparatusMEP5SA. The breakdown voltage studies were carried out on a laboratory apparatus SKAT-70.All materials for research: high-voltage wires, insulating blocks, insulating oil, were sent by the customer (Gazprom Neft PJSC). As a result of the research, it was found that the places of occurrence of the initial partial discharges are high-voltage wires, namely defects in the form of an air gap between the core and the insulation. A small part of partial discharges can occur in the defects of the insulating block. It has been found that the electrical characteristics of insulating oil change significantly with temperature. High tem-perature can lead to a significant decrease in the voltage of the PD in the contact node. â