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SCHEDULE 3 - DISTRIBUTED ENERGY RESOURCES INTERCONNECTION PROCESS <br />together with the aggregated other inverter-based DERs, shall not exceed the <br />5 <br /> <br />The proposed DER, in aggregation with other DERs on the distribution circuit, <br />current at the point on the high voltage (primary) level nearest the proposed <br />Point of Common Coupling. <br /> <br />The proposed DER, in aggregate with other Distributed Energy Resources on the <br />distribution circuit, shall not cause any distribution protective devices and <br />equipment (including, but not limited to, substation breakers, fuse cutouts, and <br />line reclosers), or Interconnection Customer equipment on the system to <br />exceed 87.5% of the short circuit interrupting capability; nor shall the <br />interconnection be proposed for a circuit that already exceeds 87.5% of the <br />short circuit interrupting capability. <br /> <br />Using the table below, determine the type of interconnection to a primary <br />distribution line. This screen includes a review of the type of electrical service <br />provided to the Interconnecting Customer, including line configuration and the <br />transformer connection to limit the potential for creating over-voltages on the <br />operating time of any anti-islanding function. <br /> <br />Table 3.1.Type of Primary Distribution Line Interconnections <br />Primary Distribution Type of Interconnection to <br />Results <br />Line Type Primary Distribution Line <br />Three-Phase, three wire Three-phase or single-phase, <br />Pass Screen <br />phase-to-phase <br />Three-phase, four wire Effectively-grounded three-phase <br />Pass Screen <br />or single-phase, line-to-neutral <br /> <br />If the proposed DER is to be interconnected on single-phase shared secondary, <br />the aggregate generation capacity on the shared secondary, including the <br />proposed DER, shall not exceed 20 kW or 65% of the transformer nameplate <br />rating. <br /> <br />If the proposed DER is single-phase and is to be interconnected on a center tap <br />neutral of a 240-volt service, its addition shall not create an imbalance between <br /> <br />5 <br /> Network protectors are protective devices used on secondary networks (spot and grid networks) to automatically <br />disconnect associated transformers when reverse power flow occurs. Secondary networks are most often used in <br />densely populated downtown areas. <br />5 <br /> <br />194 <br />