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20.20.027 <br />Photovoltaic source circuits Inverter input circuit <br />_~ Inverter output circuit <br />Electric production <br />and distribution <br />Phwtovoltaic output circuit network oonnedion <br />InveAer <br />Wind, en ' rator, E st cha a c;orttroNer, <br />micro-hy~o-elec~Mc, and ~ tem~coritrol ~ <br />other power sources <br />Inverter input dreuit <br />Inverter output dreun <br />Photovoltaic <br />output dreuR <br />Hybrid system dC bads Inverter <br />Charge oontrdler <br />Photovoltaic output - • Inverter input dreuit <br />circuit InveRer output CIrCUIt <br />Main supply <br />equipment for <br />Inverter ac loads <br />Main supply equipment <br />for do loads <br />Sand-alone system ~r'gY ~~9e <br />Notes: <br />1. These diagrams aze intended to be a means of identification for photovoltaic system <br />components, circuits, and connections. <br />2. Disconnecting means and over current protection required by Article 690 aze not shown. <br />3. System grounding and equipment grounding are not shown. <br />See Article 690, Pazt V. <br />4. Custom designs occur in each configuration and some components are optional. <br />Figure 690.1(B) Identification of <br />solar photovoltaic system compo- <br />nents in common system configura- <br />tions. <br />Blocking Diode. A diode used to <br />block reverse flow of current into a <br />photovoltaic source circuit. <br />Charge Controller. Equipment that <br />controls do voltage or do current, or <br />both, used to charge a battery. <br />Diversion Charge Controller. <br />Equipment that regulates the charg- <br />ing process of a battery by diverting <br />power from energy storage to direct- <br />current or alternating-current loads or <br />to an interconnected utility service. <br />(Pleasanton April 2003) 710-14 <br />