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Bipolar Photovoltaic Array. A photovoltaic array <br />that has two outputs, each having opposite polarity <br />to a common reference point or center tap. <br /> <br />Photovoltaic source circuits Inverter input circuit <br /> ~ / :JC~/.[~Inverter °utput circuit <br /> ~/ · Electric production <br /> and distribution <br /> Photovoltaic output circuit ~ network connection <br /> Inverter <br /> <br />Wind, engine enerator, <br />micro.hydro.~l]e~ric, and Energy storage, charge <br />oPuh~~ 'rip lU~v¢~r~;toutput circuit <br /> / . <br /> <br /> I dc loads Inverter <br />Hybrid <br /> syat.m <br /> <br />Photovoltaic output <br />circuit <br /> <br /> Charge controller <br />J Inverter input circuit <br /> Inverter output circuit <br /> <br /> equipment for <br />~- Inverter ac loads <br /> · Main supply equipment <br /> for dc loads <br /> ~'"- Energy storage <br /> <br />Notes: <br />1. These diagrams are intended to be a means of identification <br />for photovoltaic system components, circuits, and connections. <br />2. Disconnecting means and over current protection required <br />by Article 690 are not shown. <br />3. System grounding and equipment grounding are not shown. <br />See Article 690, Part V. <br />4. Custom designs occur in each configuration and some <br />components are optional. <br /> <br />Figure 690.1 (B) Identification of solar photovoltaic system <br />components in common system configurations. <br /> <br />Blocking Diode. A diode used to block reverse flow of <br />current into a photovoltaic source circuit. <br /> <br />Charge Controller. Equipment that controls do voltage or <br />do current, or both, used to charge a battery. <br /> <br />63 <br /> <br /> <br />