How Standards Control Module Design for Better or Worse Slide: 10 of 14
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Issues with Partial Discharge Test
- First issue is that there very few cases where the
geometry in PV module resembles the test (backsheet
sandwiched between 2 conductive planes).
In most cases there are no conductive materials
touching the backsheet except maybe at the edges
where the internal circuitry (cells and bus bars) must
meet the clearance distance for the proposed voltage.
- Second issue is the use of ac rather than the dc that
PV modules see.
Very little information is available to indicate that the
AC test does anything to predict DC performance.NATIONAL RENEWABLE ENERGY LABORATORY 10
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Wohlgemuth, J. How Standards Control Module Design for Better or Worse, presentation, February 1, 2011; Golden, Colorado. (https://digital.library.unt.edu/ark:/67531/metadc845978/m1/10/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.