# INVESTIGATION OF LOSSES IN INSULATION OF HIGH-VOLTAGE POWER CABLES WITH XLPE INSULATION

## Authors

• L. A. Shchebeniuk National Technical University "Kharkiv Polytechnic Institute", Ukraine
• T. Yu. Antonets Private Joint-stock company Yuzhcable works, Ukraine

## Keywords:

power cable, XLPE-cable, insulation losses, insulation system, loss factor

## Abstract

In this paper the authors calculate the losses in insulation system cable with XLPE-polyethylene as a solid dielectric insulation and with semiconductor polyethylene used as a conductor screen and an insulation screen. The paper is devoted to the investigation of losses in the insulation system of high-voltage XLPE-cables. The line of XLPE-cables in group running horizontally, provided that the cables are of equal diameter and emit equal losses. It is limited to the following: the air flow around the cables may be necessary restricted by proximity to next cables. The dielectric losses are voltage depended and related to the insulation system materials being used. All current in this insulation system are complex quantities containing both real (Re(I)) and imaginary (Im(I)) parts. Values of the loss factor of the insulation system at power frequency tgd are given
astg
d = Re(I)/Im(I). It was proposed the quantities criterion of the loss factor of the insulation system to high voltage XLPE-cables. The work is devoted to creation of a method for calculation of the current rating of high-voltage cables in conditions function.

Professor

## References

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4. IEC 60287-2-1: 2001. Electric cables. Calculation of the current rating. Part 2-1: Thermal resistance – Calculation of thermal resistance. – 84 p.

5. IEC 62067: Ed. 1.1b: 2006. Power cables with extruded insulation and their accessories for rated voltages above 150 kV (Um = 170 kV) up to 500 kV (Um = 550 kV) – Test methods and requirements. – 90 p.

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7. Shchebeniuk L.A., Antonets T.Yu. To determine the capacity of high-voltage power cables with plastic insulation. Visnyk NTU «KhPІ»Bulletin of NTU «KhPІ», 2011, no.3, pp. 152-157. (Ukr).

2016-08-30

## How to Cite

Shchebeniuk, L. A., & Antonets, T. Y. (2016). INVESTIGATION OF LOSSES IN INSULATION OF HIGH-VOLTAGE POWER CABLES WITH XLPE INSULATION. Electrical Engineering & Electromechanics, (4), 58–62. https://doi.org/10.20998/2074-272X.2016.4.08

## Section

Engineering Electrophysics. High Electric and Magnetic Field Engineering