Solar cell testing apparatus and solar cell testing method
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United States of America Patent
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Nov 28, 2017
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Aug 7, 2017
filing date -
May 8, 2015
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Abstract
A solar cell testing apparatus is provided that tests bypass diodes in a solar cell string constructed by connecting a plurality of solar cell modules, which include solar cells and the bypass diodes, in series for failures in the open position. The solar cell testing apparatus includes a unidirectional element that is connected between a positive electrode and a negative electrode of the solar cell string, and a voltage applier that applies a test voltage across the positive electrode and the negative electrode of the solar cell string to which the unidirectional element is connected. The solar cell testing apparatus also includes a current detector that detects a current flowing in the solar cell string, and a processor that executes processes that measure a current value of a shorted current of a solar cell string and tests for failures.
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