Parallel Connection, 108 | Xantrex Technology SW Series instruction

TECHNICAL INFORMATION

PARALLEL CONNECTION

Batteries are connected in parallel when all the positive terminals of a group of batteries are connected and then, separately, all the negative terminals are connected. In a parallel configuration, the battery bank have the same voltage as a single battery, but an amp/hour rating equal to the sum of the individual batteries. This is usually only done with 12-volt battery-inverter systems.

12V

FUSED

DISCONNECT

12V INVERTER

(Total Battery Capacity

= 200 Amp Hours)

Each individual 12-volt battery capacity = 50 amp hours

Figure 33, Parallel Configuration: 12-Volt Battery Wiring

SERIES - PARALLEL CONNECTION

As the name implies, both the series and parallel techniques are used in combination. The result is an increase in both the voltage and the capacity of the total battery bank. This is done very often to make a larger, higher voltage battery bank out of several smaller, lower voltage batteries. This is common with all battery-inverter system voltages. The smaller, lower voltage batteries are first connected in series to obtain the needed voltage, then these ‘batteries, connected in series’ sets are connected in parallel to increase the battery bank capacity.

The best arrangement when using a series-parallel configuration is to connect all the smaller, lower voltage batteries in parallel, then connect all these ‘batteries in parallel’ into series sets to obtain the needed voltage. This configuration is often called “cross-tying”. This is less convenient and requires additional cables but reduces imbalances in the battery, can improve the overall performance and in a “shorted cell” scenario, would cause only the battery(s) that are actually in parallel with the “shorted” battery to discharge. This would allow you to re-configure your battery bank with the other batteries that are in parallel with the shorted/discharged battery(s) and still be operational only at a lower capacity.

The more efficient “cross-tying” method is shown in Figure 34 and Figure 35 as “dash” (- - -) lines. If “cross-tying” is not desired, the dash lines shown may be ignored.

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108

 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

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.

Xantrex Technology SW Series owner manual Series Parallel Connection, 108, 12V Inverter

Models: SW Series