Global Sources Stepup-Tech GTB Series Quick Start Manual

800W Grid micro inverter specification
1. Introduction
Stepup-Tech GTB series grid micro inverter, has high reliable performance, high
efficiency, with MPPT function, meanwhile installation is simple, and it's very safe for user
since multi protection functions are implemented. It's designed to directly connect to the power
grid in home for application, a Wifi module is built in as well, which can achieve online
monitoring by use together with smart life APP.
2. Features
Wide range input voltage, inverter directly connect to solar panels, with accurate MPPT
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and APL function, can adjust the solar panel output power to the maximum to achieve
high conversion efficiency based on light.
AC 0 phase angle high precision detection, phase angle drift rate is less than 1% , thus
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realized the AC output combine with city power together.
Synchronous high frequency modulation, in grid connected, parallel adjust output
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phase angle to the same as city power. (For example, when the phase difference
between two AC is 0, merge two AC outputs), The inverter firstly rectify the 50Hz
full-wave AC to the 100Hz half-wave AC, then modulate the 100Hz half-wave with high
frequency wave to realize the high-frequency modulation.
Pure sine wave output, by using SPWM to generate pure sine wave directly.
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Automatically adjustment for different power factor loads.
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Constant current and constant power output
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Automatically shuts down the output when power grid is fault.
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Can be parallel used to increase output power
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Version：Rev 01
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