The Cooperative Power Association and United Power Association have installed a ±400 kV high voltage direct current (HVdc) transmission line that runs from the Coal Creek Power Plant near Underwood, North Dakota, to the Dickinson Substation near Delano, Minnesota, a distance of approximately 425 miles. This paper will discuss the basic operation of the system, the siting of the ground electrodes, the location of underground facilities relative to the ground electrode, and the testing procedures used during the project.

Subject
Electric current, Coated steel, Test methods, Materials, Piping systems, Conductors, Pipelines, Rods, Polarity, Transformers, Cables, Transmission lines, Electrodes
© 1981 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1981
Association for Materials Protection and Performance (AMPP)
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