Solar Dusk To Dawn Controller by Easy Photovoltech Private Limited

Solar Photovoltaic (SPV) Dusk-Dawn System is an energy saving device used for automatic switching of street lights making proper use of grid power and increasing the life of the lamps by operating the street lights from sunset to sunrise. The system of Solar Dusk To Dawn Controller is highly reliable and efficient for years of continuous flawless operation. A system can support BS many as 500 lamps depending upon the lamp characteristic. The operation is based on sensing the ambient light level which actuates the electronic controller to switch ON the street lights in the evening and switch them OFF in the morning. The sensor is hermetically sealed weatherproof and maintenance free, thereby ensuring reliability even in adverse atmospheric conditions.

The system has the inherent advantage of automatic setting of switching timings irrespective of whether it is winter or summer thus making it a totally unmanned operation. Once set for a particular light level, it remains unchanged throughout the year.

Features:

Automatic switching through the unmanned operation. Optimal use of grid power. Energy saving estimated up to 20%. Highly efficient, reliable and economical. Relief from seasonal setting required in mechanical timers Solid-state electronic controller, free from mechanical wear & tear. Hermetically sealed weather proof and maintenance free large area sensor. Protection against faults like line to line, a line to neutral & line to earth. Manual by-pass in a case of system failure. On-line service facility. Specifications: 1 Housing Kiosktype weatherproof metal enclosure. 2 Sensor Hermetically sealed Solar Photovoltaic Module. 3 Electronic Controller Solid-state controller for automatic switching. 4 Protection & Safety Against faults like line to line, a line to neutral and line to earth. 5 Electrical Switchgear As per rated capacity. 6 Special Features i) Manual by-pass in case of exigency ii) Pole mounting facility 7 Rated Capacity MODEL 1-100 A/Ph. MODEL 2-60 A/Ph. MODEL 3-30 A/Ph. Utilisation Characteristics: Type of Lamp Lamp Wattage Maximum No. of Lamps the system can support Model-1 (100 Amp) Model-2 (60 Amp) Model-3 (30 Amp) Fluorescent Tubes 40 660 450 145 Low-Pressure Sodium Lamps 90 210 140 60 High-Pressure Sodium Lamps 150 145 100 40