Investigation of Transmission and Distribution System Load Capabilities at Dallas Power&amp;Light Company

Parvin, Dilruba; Canon, David C.; Dietzman, W. Bruce; Putnam, J. L.

doi:10.1109/tpas.1980.319694

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…For example, D.G. Pavin uses higher maximum temperatures to determine temporary overload limits for a 15 minute or 4 hour emergency period [29]. Based on these higher allowable temperatures, one can calculate the higher Short and Long Time Emergency Ratings (STE, LTE) using the same method as provided by die IEEE standard [25].…”

Section: Short-and Long-time Emergency Ratingsmentioning

confidence: 99%

“…When an increase in current occurs suddenly in a conductor, the conductor temperature does not rise instantaneously because of the heat capacity of the conductor. The required time at each current level for the conductor temperature reaching the steady state level is approximately 60 minutes [29]. This time delay depends on the specific heat capacity of the conductor, the weight, and also the ambient weather conditions.…”

Section: Dynamic Heat Balance Equationmentioning

confidence: 99%

“…The LTE rating is higher than the normal rating, not because of a higher maximum allowable temperature, as in the usual way to determine the line ratings ( [29], [39]), but because the limited overload time used in the LTE rating calculation, relative to the continuous overload time used in the normal rating calculation, results in a much reduced overload impact This fact allows that the LTE rating will be computed for any duration less than the remaining conductor life (days, weeks, months), and the resulting rating will be higher than the normal rating, while the incurred risk will be the same as that of the normal rating.…”

Section: Long-time Emergency Ratingmentioning

confidence: 99%

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Section: Short-and Long-time Emergency Ratingsmentioning

confidence: 99%

Section: Dynamic Heat Balance Equationmentioning

confidence: 99%