Electric Field Reduction in an EHV Substation for Occupational Exposure via Transposition of Conductors
| Autor: | Gururaj S. Punekar, D Harimurugan |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
business.industry
020209 energy Transposition (telecommunications) Electrical engineering Energy Engineering and Power Technology 02 engineering and technology Generalized algorithm Electric power transmission Electric field 0202 electrical engineering electronic engineering information engineering Occupational exposure Electrical and Electronic Engineering business Electrical conductor Mathematics |
| Zdroj: | IEEE Transactions on Power Delivery. 33:3147-3154 |
| ISSN: | 1937-4208 0885-8977 |
| DOI: | 10.1109/tpwrd.2018.2860591 |
| Popis: | An attempt is made to reduce the maximum value of rms electric field (E-field) via the transposition of conductors in a 765-kV substation with reference to the occupational exposure. The method is applied to a extra-high-voltage substation, which is under construction. The effect of transposing the bay conductors (alone) and the bus conductors (alone) on the E-field distribution (at 2 m above the ground) over the area of the substation is discussed. Also, the topology of substation conductors that results in the minimum value for the maximum of rms E-fields is obtained via simultaneous transpositions of the bus and bay conductors. The area of the substation where the rms E-field exceeds the reference value of 10 kV/m (International Commission on Non-Ionizing Radiation Protection occupational exposure limit) is also reported for the existing topology. For this topology, the computed maximum value of the rms E-field over the area of the substation is 13.06 kV/m. This E-field is reduced to 7.999 kV/m with the best configuration of substation conductors obtained via transposition. The charge-simulation-method-based generalized algorithm for obtaining the best topology (among all permutations) of substation conductors, which results in the minimum value for the maximum of rms E-field magnitudes over the substation area is also reported. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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