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This solar light tower MODEL# SPLT-1.2K-200A-19 from VOLT Industries includes four solar panels, solar charging system, battery bank and pneumatic mast mounted on trailer with outriggers and removable tongue. This 1.2KW solar generator system replenishes 100 amp hours of usable battery capacity per day, assuming 5.5 hours of peak charging sunlight. This system delivers 24 volts for lighting, cameras, sensors or other electronics equipment mounted atop a 19-foot collapsible light mast.
Solar Light Tower:
Solar Panel Assembly:
In order to optimize the sun capture, the panels are set to +/- 15° of the latitude of the trailers location on the earth. Houston, Texas, for example, is at latitude of 30°, so the winter setting is 45° degrees and the summer setting would be 15°. While this does not make a huge difference, every little bit helps.
Once the panels are set the correct solstice position, one section of panel is elevated into position via a manual crank winch system. This sets one set of two panels above the other section of three panels so they make a consistent plane angle to the sun. The entire panel deployment can be done easily by one person, since the axis system and manual winch support the weight of the panels during positioning. The entire process takes just a few minutes.
As part of the deployment, operators will set the 4 outriggers into position by pulling them out and pinning them into position. This will offset the effects of wind on the panels and the light mast.
Solar Charging System:
This solar light tower uses the Outback Extreme series since it standard temperature threshold is more than 160° Fahrenheit, due to its integrated heat sink and fan assembly. Oddly enough, most charge controllers are not rated past 104° Fahrenheit despite the fact the will always be close to direct sunlight. In the summer time in Texas, our fabrication shop is normally warmer than that, so this solar light tower uses a charge controller that would support the southern heat. We improve on that capability by shading the charge controller and adding additional air flow from the exhaust of a 1400 CFM component cooling system.
The charge controller charges a 200-amp capacity battery bank. This 24 volt battery system in comprised of 6 volt batteries tied together in series and parallel. Of course, with most battery technology, the battery bank cannot be drained below 50% without destroying the batteries. With that in mind, this effectively reduces the total capacity of this system to 100 amps at 24 volts.
The panels produce approximately 12.5 amps per hour to charge this system. On a bright sunny day, the four panels would generate and deliver more than 200 amps back to the batteries in 5.5 hours. This conservative number of 5.5 hours is pretty standard conservative number for the solar industry. Many parts of the world have more and some have less. While this solar trailer can be optimized for the angle of the sun, the panel assemblies do not follow the path of the sun, so we use this conservative number to ensure successful operation. In areas with longer days, additional battery banks can be purchased to increase the capacity of the system. The solar trailer has capacity for two additional battery banks or one additional battery bank and supplemental generator for areas with shorter days or sporadic sunlight.
Battery Bank System:
Component Control Center:
All the electrical components, including the combiner panel, charge controller, over/under battery monitoring and ground fault isolation are encapsulated in a NEMA 3R job box that is bolted to the trailer. Since most of these components are not rated for high heat, our component cooling system circulates air within the job box at 1400 CFM when the ambient temperature exceeds 90° Fahrenheit. The component control center also includes a terminal block so that customers can mount additional electronic gear without interfering with the charging systems. The job box that contains the component control system includes locks for security purposes.
Telescoping Light Mast:
The light tower on this solar generator is powder coated with glossy blue finish for corrosion resistances and aesthetics. The mast is mounted to the solar trailer via a 15" by 13" by 1/4" thick mounting base-plate with six 9/16" anchor bolts. At the top of the mast, we include a 44" wide and 2" by 2" by 1/4" thick mounting plate mounting bracket that can support 150 pounds of electronics, including lights, camera or sensors. These mounting brackets can be built to customer specifications to include the holes necessary to mount their gear.
Specifications / Additional Information|