Lightning and surge protection of substations

Journal Article · · IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/REPCON.1991.153096· OSTI ID:6557056

Carpenter, Jr, R B; Auer, R L ^[1]

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1. Lightning Eliminators and Consultants, Inc., Boulder, CO (United States)

Lightning and switching transients along with ground faults create significant voltage anomalies on transmission and some distribution circuits. Not only direct strikes, but nearby strikes, create significant voltage anomalies and subsequent line outages. Recent developments have made it possible to provide a solution to lightning and surge problems, and also reduce the overall cost of substation designs. It is now possible to prevent lightning strikes to any substation component (including the protection system), and to limit incoming transient voltages to as little as 10% over their normal sine wave peaks. This paper defines the problem confronting protection systems engineers, reviews the protection systems conventionally used and defines two new protective systems: the Dissipation Array[reg sign] System (DAS[reg sign]) and the series hybrid forms of surge protection. The DAS[reg sign] has been in use for over twenty years as a strike preventor. The series hybrid protection concept is new to substation applications, but has been in use at secondary levels of up to 2,500 V for approximately sixteen years. As a result, lightning or other forms of transient phenomena does not need to be a threat to substations or drive up the overall costs. An earlier paper illustrates how strikes and flashovers involving the phase conductors and overhead ground wires (neutral) can also be eliminated.

• OSTI ID: 6557056
• Journal Information: IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers); (United States) Vol. 31:1; ISSN ITIACR; ISSN 0093-9994
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240201* -- Power System Networks
Transmission & Distribution-- AC Systems-- (1990-)
ELECTRIC DISCHARGES
EQUIPMENT PROTECTION DEVICES
LIGHTNING
POWER DISTRIBUTION SYSTEMS
POWER SUBSTATIONS
SURGES