OPERATION

Figure 18, Trace™ SW Series Inverter Output Waveform

The inverter is able to synchronize with other AC sources before connecting it to the AC load. The frequency of the AC source is tracked and the inverter constantly adjusts its frequency to maintain a lock. A normally open contactor is used to parallel the inverter’s output and the AC source.

The inverter’s power topology is bi-directional. If the waveform created by the inverter has a higher voltage than the paralleled AC source, then power flows from the batteries to the load. If the waveform generated has a lower voltage than the AC source, power flows from the source to the battery. The various modes of operation use different algorithms for determining the size of the waveform to be created by the inverter. In battery charger mode, for example, waveforms smaller than the AC source are created to cause current to flow into the batteries. This process is fully regulated to provide a three-stage charge cycle. If the level of AC current exceeds the user programmed generator or grid size, and then the inverter will switch to a generator support mode and create waveforms that are larger than the AC source. This causes power to flow from the batteries to the AC loads to prevent overloading of the AC source.

In utility-interactive mode, the inverter can operate as a battery charger or paralleled AC source to the utility grid. If an external source such as solar panels attempts to raise the batteries above the float voltage setting, the inverter will try to hold the battery voltage at the float voltage level by “selling” the excess power into the utility grid. This is done by increasing the inverter’s output voltage level. This moves the excess DC power from the solar array to the AC utility grid, preventing the battery from being overcharged. If the utility grid connected to the inverter is de-energized, the inverter can not regulate the battery voltage. Some external control device, such as Trace™ C40 Load/Charge controller, must be provided to prevent damage to the battery.

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2001 Xantrex Technology, Inc.

Telephone: 360/435-8826

SW Series Inverter/Charger

5916 - 195th Street N. E.

Fax: 360/435-2229

Part No. 2031-5

Arlington, WA 98223

www.traceengineering.com

Rev. C: February 2001

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Xantrex Technology owner manual Trace SW Series Inverter Output Waveform
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SW Series specifications

Xantrex Technology has established itself as a leader in innovative power solutions, and its SW Series inverters epitomizes this commitment to quality and efficiency. Designed for both standalone and grid-tied applications, the SW Series offers versatile power management for a range of residential and commercial needs.

At the heart of the SW Series is its advanced pure sine wave output, ensuring clean and reliable electricity suitable for sensitive electronics. This feature makes it an excellent choice for applications such as solar energy systems, where it provides high-quality power for a variety of devices, from household appliances to complex machinery.

One of the key characteristics of the SW Series is its modular design, which allows for easy installation and scalability. This modularity enables users to expand their power system as their energy needs grow, making it an ideal choice for both small and large installations. The inverters come equipped with a user-friendly interface, providing clear information on system performance, battery status, and more, ensuring that users can effectively monitor and manage their energy consumption.

The SW Series inverters also incorporate cutting-edge technology, such as the patented Power Factor Correction (PFC) feature, which optimizes energy efficiency by reducing harmonic distortion. This translates into less wasted electricity and lower energy costs, making it an environmentally friendly option for users looking to reduce their carbon footprint.

Another notable feature of the SW Series is its ability to operate in extreme conditions. Built with robust components and advanced thermal management systems, these inverters can withstand a wide range of temperatures and environmental challenges, ensuring reliable performance in various settings. This durability makes them suitable for off-grid applications, including remote cabins, RVs, and boats.

Furthermore, the SW Series supports a variety of battery types, including lithium-ion, AGM, and gel batteries, offering flexibility for users to choose the best energy storage solution for their needs. The sophisticated battery management system ensures optimal charging and discharging, prolonging the lifespan of the batteries and enhancing the overall efficiency of the power system.

In summary, Xantrex Technology's SW Series inverters stand out for their pure sine wave output, modular design, energy efficiency features, and robust performance in challenging conditions. With their versatility and advanced technology, they cater to the evolving needs of today’s power consumers, making them a compelling choice in the modern energy landscape.
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