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TECH REF Elec Install

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TECH REF Elec Install ( tech-ref-elec-install )

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Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 • USA Technical Reference: Capstone MicroTurbine Electrical Installation System Operating Modes The Capstone MicroTurbine can function in two operational modes: 􏰪 GridConnectMode(GC) 􏰪 StandAloneMode(SA) A Dual Mode connection option (which requires an optional Dual Mode Controller), is available that allows automatic transition between GC and SA modes. Operation as a MultiPac is available for both operational modes. Grid Connect Output The Capstone MicroTurbine electrical output in Grid Connect mode is 3-phase, 400 to 480 Volts AC and 45 to 65 Hz (both voltage and frequency are determined by the grid). Refer to Figure 1 as required. Stand Alone Output When equipped with the Stand Alone option, the electrical output is user adjustable from 150 to 480 Volts AC, 10 to 60 Hz. The current in each phase may be continuous and need not be balanced, as long as the electrical current limits are respected. Refer to the Model C30 Electrical Technical Reference (410000) and the Model C60 Electrical Technical Reference (410001) for details on electrical ratings. Stand Alone loads may be connected phase-phase or phase-neutral, so long as the current limits are respected. Overloads up to 10 seconds can be accommodated. The Ramp Start feature can assist in starting loads with large in-rush currents. Dual Mode Connections A MicroTurbine equipped with the Stand Alone option is capable of either Grid Connect operation or Stand Alone operation. Conversion from one mode to the other requires a shutdown of the MicroTurbine. Conversion may be accomplished manually or automatically. Automatic transfer may be accomplished with the optional Capstone Dual Mode Controller. Refer to the Dual Mode Controller Application Guide (513000) for details. MultiPac Power Connections Refer to the MultiPac Technical Reference (410032) for details on MultiPac operation. Connections for the MultiPac are supported in the Stand Alone, Grid Connect, and Dual Mode configurations. Power Quality The Capstone MicroTurbine output conforms to Institute of Electrical and Electronics Engineers (IEEE) 519-1992, IEEE Recommended Practices, and Requirements for Harmonic Control in Electrical Power Systems, IEEE, New York. The Protective Relay functions comply with UL 1741. Refer to the Protective Relay Application Notes (512723) for details. 410009-001 Rev C (September 2003) Page 3 of 24 This information is proprietary to Capstone Turbine Corporation. Neither this document nor the information contained herein shall be copied, disclosed to others, or used for any purposes other than the specific purpose for which this document was delivered. Capstone reserves the right to change or modify without notice, the design, the product specifications, and/or the contents of this document without incurring any obligation either with respect to equipment previously sold or in the process of construction. CAUTION All of the allowable utility service connections for the various MicroTurbine operating modes are presented in this document. Consult Capstone if your utility service connections do not agree with those presented in this document.

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