Elektrotehnički institut Nikola Tesla / Electrical Engineering Institute Nikola Tesla / The Nikola Tesla Institute of Electrical Engineering - University of Belgrade
Published June 6, 2020 | Version v1
Conference paper Restricted

FOP - FSM Measurement - Relative position of the test conductors

Creators

  • 1. Electrical Engineering Institute "Nikola Tesla", University of Belgrade, Belgrade, Serbia
  • 2. Faculty of Electronic Engineering, University of Niš
  • 3. PE Electric Power Industry of Serbia, Leskovac

Description

Experimental evaluation of the measurement results based on FSM (Frequency Shift Method) concept in the non-conventional FOP (Fall-of-Potential) measuring scheme, for different angles between the test conductors, is presented in this paper. As it is well known, the optimal angle between the test conductors is θ = 90°. However, in practice, most often because of the physical obstacles in the surround substation, this condition cannot be provided. We have experimentally determined that the angle between the test conductors must be less than 60° relative to the optimal angle θ. In that case the corresponding measurement error is less than 3%.

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