Abstract
Low-voltage applications mounted on high-voltage towers may pose a safety problem in the low-voltage network when a flashover occurs over the high-voltage insulators. To study the effects experimentally, a 150 kV system was made available. On a high-voltage tower carrying a cellular phone base station, one phase insulator was shorted to the tower. A current of about 200 A was injected into that phase at a large distance. We measured the current distribution and the relevant voltages in the low-voltage net. The experimental current data agree with EMTP calculations. Appropriate measures to guarantee safety for persons and electronic equipment are discussed.
Original language | English |
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Pages (from-to) | 63- |
Number of pages | 5 |
Journal | IEEE Power Engineering Review |
Volume | 22 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2002 |