INVESTIGATION OF THE EFFECT OF CABLE JOINT ON THE MAGNETIC FIELDS AROUND UNDERGROUND POWER CABLES

Document Type : Original Article

Authors

1 Electrical and computer dept., Graduate university of advanced technology

2 dept. electrical and computer engineering, Kerman graduate university of advanced technology

3 Electrical and Computer dept., Graduate university of advanced technology

Abstract

Since a high percentage of faults in underground power cables occur at the joint location of these cables, identifying the cable joints location is one of the most important challenges for power distribution companies. In this paper, a passive method to detect the underground electrical cable joints based on the variations of magnetic fields at the ground surface is proposed. For this purpose, the magnetic fields above a long cable containing a joint at the middle were first simulated using CST software. Simulation results showed that when scanning along the cable, the magnetic field changes at the joint position which can be used for finding its location. Simulations were repeated for different joints located at different depths and in different soils. The advantage of the proposed method is that it does not need any external source and causes no interruption of electric power in underground power cables.

Keywords

References

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Applied Electromagnetics
Volume 8, Issue 2 - Serial Number 21
December 2021
Pages 89-96

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History

  • Receive Date: 31 March 2020
  • Revise Date: 23 March 2020
  • Accept Date: 20 May 2020
  • Publish Date: 21 November 2020

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