HVDC power transmission electrode siting and design
- NDT Engineering, Inc., Shrewbury, MA (United States)
- Electro-Sciences, Inc., Crystal Lake, IL (United States)
- New England Power Service Co., Westborough, MA (United States)
This research strives to shed light on the feasibility and practicality of using deep earth electrodes to permit their use for extended periods without adverse consequences. This report begins with a review of the fundamentals associated with current conduction in earth, including the various techniques available for measuring the earth`s electrical properties. The sources of existing data are discussed and some specific data for selected regions of the U.S. and Canada are reviewed as examples. Electrode technology and design issues are reviewed and recent experience gained by New England Power and Hydro-Quebec is discussed. The issues associated with direct current flowing in underground pipelines (and other facilities) are described and the present-day mitigation measures are evaluated. Suggestions are made for further R&D in the coordination of cathodic protection systems, an area that has evolved as an empirical, trial- and-error art more than a science.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE Assistant Secretary for Energy Efficiency and Renewable Energy, Washington, DC (United States)
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 580585
- Report Number(s):
- ORNL/SUB--95-SR893/3; ON: DE98052746; BR: EB5005000
- Country of Publication:
- United States
- Language:
- English
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