Abstract
In remote areas, light loads (tens of kilowatts) are scattered and situated in the field of high voltage lines (66KV and above). These loads are very far from the main feeders/sub-stations (33KV-0.380KV). Feeding such loads in the traditional ways like provision of Diesel-Powered Stations, installation of new distribution lines from the Feeding Centers, or building new Sub-Stations are not practical ways from the economical point of view, because it requires huge additional expenses and will increase electrical power losses. These expenses are not worthy for such loads and therefore, it is necessary to search for other methods to supply them. One of these methods is to use the lightning arrester line as capacitive divider to supply the light loads. In this research, the induced voltage of the lightning arrester line was calculated when it is isolated from the earth. We found the capacitance between lightning arrester line versus the phases and lightning arrester. It was also found the selective power out of the lightning arrester line and the required length which is to be isolated from the earth keeping the main function of the lightning arrester line. When economically comparing between supplying the light electrical loads by traditional ways and the method of lightning arrester, it was found the advantage of using lightning arresters to supply such loads. Also, by using the traditional methods, it was noted that there is a power loss in the power transmission lines by a percentage of 1.8%.
Highlights
There are scattered loads everywhere which lay in the field of high voltage lines specially those is close to transportation roads like petrol stations, restaurants ... etc)
We should search for new ways that are feasible from the economical point of view
For the annual peak load equals T = 3000 h and 10.42 Million Kilowatt-hour, the economical benefit will be appreciated to select the energy from the lightning arrester line having a rate of 20 Derham / kWHour which is around 2.08 Libyan Dinar yearly from the strikes
Summary
There are scattered loads everywhere which lay in the field of high voltage lines specially those is close (adjacent) to transportation roads like petrol stations, restaurants ... etc). Supplying these loads in the traditional methods is too expensive while these are only low power-consuming loads and lying in the field of high voltage lines (220KV and above) which are fed from substations (220/0.4 KV). This will lead to the investment in big transformers but on the other hand, the complete power of these transformers is not utilized[1]. In 1980, in the Scientific Research Center in Moscow, a single Phase Voltage Divider Station was built to supply the Train Indication lamps at the crosssection of Railway with roads, that station was called Capacitive Voltage Divider where Capacitors were used. This paper studies the possibility of using lightning arrester line as a source of power to such loads while keeping the main function of this arrester
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