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AC - DC Sine Wave Inverters

The technology of using an inverter to obtain a 230V or 115V power supply from a battery is not new. Until now, however, the results were less than perfect as most inverters could only produce an output voltage that was not sine wave formed and the efficiency of the products were low. Power conversion manufacturers' have optimised the inverter technology, resulting in the availability of a superb range of high efficient sine wave inverters.

Our product range of pure sinewave inverters are a special breed of power inverters which produce a clean sinewave equal or better in quality than what you would expect from wall mains. Regular power inverters only approximate what you would get from wall mains, and this could result in damage to sensitive equipment.These inverters are suitable for critical applications such as servers and timers which depend on a consistent 50 Hz or 60Hz frequency, and professional audio equipment which can be susceptible to the buzz in standard inverters. The Solenttech range of Inverters series consist of pure sine wave inverters that convert battery voltage to AC voltage for all AC devices.

We also provide modified sinewave inverters for less critical applications. These Solenttech inverters allow you to operate 230 volt AC or 115AC equipment almost anywhere at anytime. All you need is a DC power supply or battery. This range of inverters use switch mode technology, the battery DC voltage is converted at high frequency, regulated and rebuilt as 50Hz AC OR 60Hz mains voltage. This technology makes the product compact, lightweight and affordable, as no heavy transformer is required. The range starts from 100w through to 40KW.


Inverter Chargers

Solenttech Inverter chargers incorporate a powerful pure sine wave inverter, a sophisticated battery charger (with adaptive charge technology), a solar panel regulator and a high-speed AC transfer switch all integrated into a single compact enclosure.

The pure sine wave output of the Inverter Charger means it will safely power all types of equipment, PC's, Laptops, Stereo's, DVD's, LCD TV's, etc...

In the event of a grid failure, or shore/generator power being disconnected, the inverter is automatically activated in less than 20 millisecond and takes over supply to the connected loads allowing them to continue to operate without disruption.

The battery charger can draw considerable power from the generator or shore supply and therefore the power sharing control is incorporated to automatically reduce the charger power when other loads are in use, thus preventing shoreline overload trips.


Battery Chargers & Charging Equipment

There are many types of chargers available today. They are usually rated by their start rate, the rate in amperes that the charger will supply at the beginning of the charge cycle. When selecting a charger, the charge rate should be between 10% and 13% of the battery¦s 20-hour AH capacity. For example, a battery with a 20-hour capacity rating of 225 AH will use a charger rated between approximately 23 and 30 amps (for multiple battery charging use the AH rating of the entire bank). Chargers with lower ratings can be used but the charging time will be increased.

As a rule we recommend using a 3-stage charger. Also called "automatic" or "smart" chargers. These chargers prolong battery life with their well programmed charging profile. These chargers usually have three distinct charging stages: bulk, acceptance, and float.

Charging batteries properly requires administering the right amount of current at the right voltage. Most charging equipment automatically regulates these values. Some chargers allow the user to set these values.

The majority of our range of chargers will provide Short Circuit Protection, Reverse Polarity Protection, High Temperature Protection, Constant Current Bulk Charge, 3 Stage Charging and a Constant Voltage Float feature to hold the battery at peak charge without overcharging! Even the best batteries will suffer a reduction in output or ultimate life if inferior systems are used for essential routine charging and maintenance.

We offer a large range of chargers designed for traction batteries and traction 2Volt cells. Nominal output voltages include 12v, 24v, 36v, 48v, 72v, and 80v, with this choice and current outputs between 10A and 180A all you charging requirements can be catered for.


Solar Technology

Solar technology and the environment:
Solar power technology is the energy technology of the future. Through supply of solar power technology we can give people all over the world the opportunity of producing and consuming clean electricity. Solar energy helps to reduce carbon dioxide emissions into the environment and will conserve resources of fossil fuels.

Electricity is produced from sunlight using what are known as Photo-Voltaic Cells. These cells are thin glass-like plates of silicon material that produce electricity between the front and back surface when sunlight falls on the front surface. The electricity is produced from the visible portion of sunlight, not the heat part. The more intense the light the more electricity it produces. Even under cloudy condition's electricity can be produced although in lesser quantities. The electricity that the solar panel produces is placed into storage batteries for later use.

There are three basic types of solar panels: monocrystalline, polycrystalline, and amorphous. All three types of panels are made up of an array of individual cells.

Monocrystalline Cells:
Made using cells saw-cut from a single cylindrical crystal of silicon, this is the most efficient of the photovoltaic (PV) technologies. The principle advantage of monocrystalline cells are their high efficiencies, typically around 15%, although the manufacturing process required to produce monocrystalline silicon is complicated, resulting in slightly higher costs than other technologies.

Multicrystalline Silicon:
Made from cells cut from an ingot of melted and recrystallised silicon. In the manufacturing process, molten silicon is cast into ingots of polycrystalline silicon, these ingots are then saw-cut into very thin wafers and assembled into complete cells. Multicrystalline cells are cheaper to produce than monocrystalline ones, due to the simpler manufacturing process. However, they tend to be slightly less efficient, with average efficiencies of around 12%., creating a granular texture.

Thick Film Silicon:
Another multicrystalline technology where the silicon is deposited in a continuous process onto a base material giving a fine grained, sparkling appearance. Like all crystalline PV, this is encapsulated in a transparent insulating polymer with a tempered glass cover and usually bound into a strong aluminium frame.

Amorphous Silicon Cells:
Composed of silicon atoms in a thin homogenous layer rather than a crystal structure. Amorphous silicon absorbs light more effectively than crystalline silicon, so the cells can be thinner. For this reason, amorphous silicon is also known as a "thin film" PV technology. Amorphous silicon can be deposited on a wide range of substrates, both rigid and flexible, which makes it ideal for curved surfaces and "fold-away" modules. Amorphous cells are, however, less efficient than crystalline based cells, with typical efficiencies of around 6%, but they are easier and therefore cheaper to produce. Their low cost makes them ideally suited for many applications where high efficiency is not required and low cost is important.

Other thin films:
A number of other promising materials such as cadmium telluride (CdTe) and copper indium diselenide (CIS) are now being used for PV modules. The attraction of these technologies is that they can be manufactured by relatively inexpensive industrial processes, certainly in comparison to crystalline silicon technologies, yet they typically offer higher module efficiencies than amorphous silicon. New technologies based on the photosynthesis process are not yet on the market.

Quality,Safety and Global Certification:
Our range offers all the latest products and developments in the photovoltaic field.Even today the design life of our mono-crystalline modules after 10 years has a power output above 90% and within 25 years is above 80% of the rated power.. The Allowable operating conditions are; Maximum temperature range is -40oC to +85oC Hail: up to 28mm diameter and 86 km/h impact speed Surface maximum load capacity: evenly up to 240 kg/m2.All solar products are tested and conform to the latest TÜV, IEC 61215,and ISO 9001-2002 requirements.

For further information please contact us.



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