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Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 • USA Technical Reference: Component Descriptions - Model C30 MicroTurbine Digital Power Controller (DPC) The DPC is a collection of hardware/software that converts the power out of the generator into power usable by the load. Pre-Charge Board 1. Pre-charge DC bus when grid applied 2. Source 13.8V power supply through DC bus 3. Measure 5Ω across each resistor 4. When grid voltage applied VoltagepresentatPreChargeBoard Voltagepresentoninvertersideofoutputcontactor 5. Failures InverteroperationwithOutputContactoropen Improperutilitywiringcanleadtofailure Inverter Output Contactor 1. Output contactor bypasses Pre-charge Board Highpowerflowtoandfromload 2. Rated for 600 VAC and 60 Arms/phase. 3. Powered through 13.8V from DPC Power Board ConnectorJ21pin1andpin2(Gnd) 4. Economizer circuit latched when contactor closed Mechanicallatchmechanism Reducepowerrequiredbycontactorcoil 5. Economizer fails to latch Causeexcessivepowerdrawburncoil Leadtocontactorfailure(2004) EMI Filter The EMI filter is used to reduce high frequency RF noise from the system. 1. Conditions voltage harmonics AC output Resistor/Capacitorcircuit 2. Connections made OutputContactorinDigitalPowerController(DPC) TerminalblockinUserConnectionBay 410012-001 Rev B (August 2003) Page 28 of 46 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.PDF Image | Technical Reference Component Descriptions Capstone Model C30 MicroTurbine
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