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City of Everett 26 05 73.16 - 3 <br /> Inductive Charging Infrastructure for Everett Transit <br /> C. Computer software program must be capable of plotting and diagramming time- <br /> current-characteristic curves as part of its output. Computer software program must <br /> report device settings and ratings of overcurrent protective devices and must <br /> demonstrate selective coordination by computer-generated, time-current coordination <br /> plots. <br /> 1. Optional Features: <br /> a. Arcing faults. <br /> b. Simultaneous faults. <br /> c. Explicit negative sequence. <br /> d. Mutual coupling in zero sequence. <br /> D. Computer program must be designed to perform coordination studies or have function, <br /> component, or add-on module designed to perform coordination studies. <br /> E. Computer program must be developed under supervision of licensed professional <br /> engineer who holds IEEE Computer Society's Certified Software Development <br /> Professional certification. <br /> 2.2 COORDINATION STUDY REPORT CONTENTS <br /> A. Executive summary of study findings. <br /> B. Study descriptions, purpose, basis, and scope. Include case descriptions, definition of <br /> terms, and guide for interpretation of results. <br /> C. One-line diagram of modeled power system, showing the following: <br /> 1. Protective device designations and ampere ratings. <br /> 2. Conductor types, sizes, and lengths. <br /> 3. Transformer kVA and voltage ratings. <br /> 4. Motor and generator designations and kVA ratings. <br /> 5. Switchgear, switchboard, motor-control center, and panelboard designations. <br /> 6. Revisions to electrical equipment required by study. <br /> 7. Study Input Data: As described in "Power System Data" Article. <br /> a. Short-Circuit Study Output: As specified in "Short-Circuit Study Output <br /> Reports" Paragraph in "Short-Circuit Study Report Contents" Article in <br /> Section 260573.13 "Short-Circuit Studies." <br /> D. Protective Device Coordination Study: <br /> 1. Report recommended settings of protective devices, ready to be applied in field. <br /> Use manufacturer's data sheets for recording recommended setting of <br /> overcurrent protective devices when available. <br /> a. Phase and Ground Relays: <br /> 1) Device tag. <br /> 2) Relay current transformer ratio and tap, time dial, and instantaneous <br /> pickup value. <br /> 3) Recommendations on improved relaying systems, if applicable. <br /> 26 05 73.16 - 3 COORDINATION STUDIES <br />