Trace GTI
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GTI INTRO W/ SCHEMATIC (515K)
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GTI SPECS (220K)
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COMPLETE INSTALLATION MANUAL (948K)
Excerpt from the manual:
The GTI is an integrated assembly used with the Trace
SW Series II inverter/charger with Revision 4.2 Software. This new
device provides active anti-islanding protection and reduces current
Total Harmonic Distortion below the test requirements as described
in UL-1741-2000.
The GTI is an accessory, which is connected between
the grid and the SW series II inverter to optimize the "SELL"
feature. While there is a small inductor in the GTI, this device
is not a "filter"; rather it contains an additional control
microprocessor which connects to the SW series II with a communications
cable.
When the GTI is connected and the Inverter "SELL"
mode is selected, the microprocessor of the GTI takes control of
the SW series II and operates the inverter "SELL" feature.
The GTI affords a dedicated microprocessor and new, sophisticated
control algorithms that are able to optimize the sell function.
The SW Series II / GTI meets all power requirements
of UL1741, including harmonic distortion, power factor and anti-islanding
requirements. In addition, it has increased the SW series II's efficiency
in SELL mode to within 1% of the impressive off-grid efficiency
of the SW.
All new SW series II units (shipped since December
of 2001) are equipped to allow the GTI to be installed in the field.
The SW series II inverter is Certified to UL1741 for off-grid and
backup power applications. The SW can be connected to the grid as
a battery charger; however, it is NOT approved to use the SELL feature
(net meter) without the GTI accessory. The GTI carries all necessary
approvals and markings to allow a safety inspector to approve the
installation for net metering.
