Take a deep dive into National Electrical Code (NEC® 2014) standards as well as other best practices that pertain to designing grid-direct PV systems. The focus in PVOL202 is on residential & commercial-scale systems, but the Code requirements, design parameters, & best practices are applicable to all types & sizes of PV installations. Detailed lessons address requirements for disconnects, overcurrent protection, & wire sizing; interconnection requirements & calculations; grounding, ground-faults, & surge protection; calculations for system sizing, inverter selection, and electrical configuration; ground and roof mount details; and commissioning and performance analysis procedures.
PV202 focuses significantly on the National Electrical Code, including interconnection calculations, grounding, workspace clearances, & disconnect and overcurrent protection sizing and considerations.
Commercial system equipment specifications including inverters, racking, and 3-phase interconnection are covered; as well as site considerations for roof & ground-mounted arrays, including layout and inter-row shading. PV 202 thoroughly addresses array sizing with various inverter configurations, in order to assess design options and optimize performance. Students will learn to evaluate system performance under various operating conditions, and identify and correct installation errors including ground-faults. Prerequisites: PV 101 or PVOL101 (or PV D&I or Grid-Tied PV prior to January 2010)
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