Automatically activates generator to recharge depleted battery bank or assist inverter with heavy loads Conduit Box: Optional XW Conduit Box encloses the bottom of the inverter and protects the cabling. Optional Accessories. Xantrex expects the system designer to use the XW Charge Controller with their inverters. Their sizing tools assume the XW Charge Controller. Most importantly, Xantrex handles the Ground Fault Protection required by National Electric Code in all systems in the charge controller.
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Very low idle current draw allows high efficiency even when powering small loads. Requires optional stacking interface cable. Includes islanding protection for utility connected applications. As a Battery Charger: 1 High efficiency, low current distortion design enables higher charge output from small generators.
Remote battery temperature probe is standard. Includes manual equalize mode with adjustable settings. When connected to grid or generator, the SW Inverter synchronizes its waveform to that of the AC source, locks to it and operated in parallel.
This ability, coupled with the bi-directional power topology and micro-processor control, makes it possible for the unit to offer multiple operating modes. Generator Support Mode: When charging from a generator, the generator's output voltage and current are monitored.
If either falls outside user adjustable limits, the unit sheds itself as a load and then reverses the power flow if necessary. This delivers energy from the batteries to the loads assisting the generator. When AC fails, transfer to inverter power is no longer than 34 milliseconds. If the grid and generator are connected, the unit can be set to start the generator after the grid has failed. After grid returns, the generator is automatically stopped. The inverter output is synchronized to the grid and the grid is reconnected to the loads.
Note: generator must have the reciprocating circuitry to accommodate the SW inverter. Battery Voltage and Transfer Mode: If the batteries are low, a low battery set point triggers connection to the grid. Generator Start Mode: Automatic generator start features are standard and user programmable. Gen start can be triggered by wither battery voltage or load size connected. A "quiet time" can be set to restrict generator operation unless absolutely required.
The start sequence is fully adjustable and is now compatible with a greater variety of generator types. Generator MUST be set up for remote starting and designed for unattended operation. Utility Interactive Mode: Operating as a bi-directional battery charger, power from any source that tries to raise the batteries above their programmed float voltage is delivered to the grid.
Sell back current is adjustable. Peak Load Shaving Mode: 1 The sine wave series may be programmed to operate from batteries during a specified period of the day. Batteries may be charged during lower rate periods. An alternative lower adjustable float voltage is employed to allow variable battery discharge depths.
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