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2. System Design Calculations Report (Non-Code) <br /> 2.1. PV Source Circuit Voltage Mange Test <br /> This test confirms that the voltage of the PV Source Circuit will always remain within the DC input voltage window of the system's inverter, <br /> microinverters,or power optimizers. <br /> 2.1.1.(1)Q.PEAK BLK-04.1295(295W)in series i <br /> Section Properties lNlldation Tests <br /> Description (1)Q.PEAK BLK-G4.1 295(295W) The minimum Vmp must exceed the minimum PASS <br /> in series input voltage of the connected device <br /> Connected Device Solar Edge P320 27.31V>8V=true <br /> Connected Device Type Power Optimizer <br /> Design Low Temp. 1°C The maximum Voc must not exceed the max input PASS <br /> Design Hi h Temp. 34°C voltage of the connected device <br /> Module Q.PEAK BLK-G4.1 295 295W 42.14V<48V=true <br /> Module Vmp 32.19V <br /> Module Voc 39.48V <br /> Power Optimizer Min.In ut Volta e 8V <br /> Power Orrtimizer Max.Input Voltage 48V <br /> Mounting Method Flush Roof Mount <br /> Temp.Coefficient Voc -0.111VIC <br /> Voltage Loss Due to Degradation 0.0 <br /> derate <br /> Voltage Loss Due to Tolerance 0.0 <br /> derate <br /> Calculations j <br /> A. String Voc at Low Temperature 42.14V <br /> The module Voc(39.48V)will increase to 42.14V at the design low <br /> temperature(M). <br /> (1°C-25°C)X-0.111 V/C+39.48V=42.14V <br /> The total Voc for the string is 42.14V. <br /> 42.14V X 1=42.14V <br /> B. String Vmp at High Temperature 27.31V <br /> Estimated cell temperature equals the design high temperature(34°C) <br /> plus 35°C(the estimated difference between ambient temperatures and <br /> the cell temperature for a flush roof mount). <br /> 34°C+35°C=69°C <br /> The module Vmp(32.19V)will drop to 27.31V at the design high <br /> temperature(34°C). <br /> (69°C-25°C)X-0.111VlC+32.19V=27.31V <br /> The total Vmp for the string is 27.31V. ! <br /> 27.31VX1=27.31V <br /> I <br /> I <br /> I <br /> i <br /> i <br /> i <br /> i <br /> i <br />