07-01-2013, 04:10 PM
DESIGN AND FABRICATION OF AUTOMATIC STREET LIGHT CONTROL SYSTEM
DESIGN AND FABRICATION OF AUTOMATIC STREET LIGHT CONTROL SYSTEM.pdf (Size: 406.82 KB / Downloads: 58)
ABSTRACT
Only one in five Bangladeshis has access to power. Probably, it is more discouraging in the rural areas of the Country. People living in the land are observing serious load shedding due to the generation deficit. The suffering of its citizen could lessen by a proper load management system. In this paper, the authors have designed and fabricated a circuit that can control (on/off) distribution line of a specific region based on the intensity of the daylight (LUX). If the light intensity varies with seasons or some other factors, it is adjustable. Again if there occurs any damage (short circuit) or if any bulb/tube does not work, it could point out the location and could provide alarm. The functioning of the circuit is empirically experienced in the 11-kV electric sub-station at CUET campus. It is observed that the circuit is working reliably, and it is possible to ameliorate the power management system enormously. The circuit is simple in design, easy to fabricate and require few dollars only.
INTRODUCTION
Bangladesh Power Development Board (BPDB) was established in 1972 as a public-sector organization. Its responsibility includes power generation, transmission and distribution of electricity throughout the country. Organizational changes were subsequently introduced to the transmission and distribution sectors. In 1977, the Rural Electrification Board (REB) was created and in 1991 the Government of Bangladesh (GOB) established the Dhaka Electric Supply Authority (DESA) to operate and develop the distribution system in and around Dhaka and bring about improvements in customer service, collection of revenue and lessen the administrative burden on BPDB.
DESIGN & CONSTRUCTION
The control system consists of light sensor, operational
amplifier, switching element, 220V (AC) street line
distribution system, protection circuit and alert system
for faults. The block diagram of the control system
RESULTS AND DISCUSSIONS
However the control system is light sensitive, in authors’ observation the circuit is able to work reliably and thereby could reduce the loss of energy by maintaining the appropriate timing for ON/OFF the system. Though the system is a good design output of this research, it has few limitations like circuit is light sensitive