Measurement and Safety Criteria of Step Voltage of High Voltage Direct Current Grounding Electrode
- 23 February 2021
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Delivery
- Vol. 37 (1), 423-430
- https://doi.org/10.1109/tpwrd.2021.3061465
Abstract
Grounding electrode is an indispensable part in HVDC transmission projects. During its design and safety evaluation, step voltage is a crucial aspect. By reviewing and sorting out the present standards involving step voltage measurement and its safety limit, this paper illustrates the contradiction between the measurement methods and the safety evaluation. Reasons for the contradiction are explained by analyzing the principal of step voltage measurement and safety evaluation. The Open-circuit step voltage measurement method and the measurement method with a human body equivalent resistance paralleled are compared to find out their advantages and disadvantages. Suitable circumstances and corresponding safety criteria of these two methods are put forward. Method proposed in this paper can be applied to step voltage measurement and safety evaluation of HVDC grounding electrode, providing reference when revising the related standards.Keywords
This publication has 16 references indexed in Scilit:
- The effect of mesh size, number of rod, & length of rod towards touch voltage, step voltage, and ground resistance in grounding systemPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2017
- HVDC Transmission for Renewable Energy IntegrationPublished by Elsevier BV ,2017
- Effect of Coke Bed on the Electrical Performance of HVDC Ground ElectrodeIEEE Transactions on Industry Applications, 2016
- Technical and economical ground electrode design in various soil and depth in HVDC system by analyzing voltage distribution by FEMPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2015
- Earthing requirements for HVDC systemsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2015
- Simplified Conservative Testing Method of Touch and Step Voltages by Multiple Auxiliary Electrodes at Reduced DistanceIEEE Transactions on Industry Applications, 2015
- Design of UHVDC earth electrodePublished by Institute of Electrical and Electronics Engineers (IEEE) ,2014
- Performance of HVDC ground electrode in various soil structuresPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Comparison of touch and step voltages between IEEE Std 80 and IEC 479-1IEE Proceedings - Generation, Transmission and Distribution, 1999
- Eh-pH Diagrams for GeochemistryPublished by Springer Science and Business Media LLC ,1988