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Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 • USA Technical Reference: Stand Alone Operation – Capstone Model C30 and C60 Accel This state is characterized by ramped generator acceleration. The following events occur: • Turn off spark exciter solenoid/igniter • Ramp speed and fuel flow to maintain combustion, while increasing generator speed to 45krpm Run This state is characterized by the system delivering 0 kW output while the output contactor remains closed. The turbine will operate with fuel at 45 krpm for up to one minute to warm up engine components and remain in the Run state after the warm up is complete until a Power Enable signal is received. This signal may be automated using the Auto Load feature. After the Power Enable signal is issued either manually or through Auto Load, the system may remain in the Run state operating at higher speeds and supplying power to the battery pack until the state-of-charge (SOC) of the battery is greater than 60%. This additional time ensures that the battery pack will be able to support any transients when the output contactor is closed. Load This state is characterized by the output contactor closing to export power to connected loads. When the Power Enable signal is provided, control transitions to the Load State. The Power Disable signal may be provided to disengage loads and transition back to the Run state. Additional power may be produced by the engine into the battery pack to maintain the state-of- charge at 80% nominally for operation. The system remains in the Load state until a fault occurs or a stop command is given. The system transitions to Recharge state before entering Cooldown. The following events occur: • Speed varies from 45 to 96 krpm to meet power demand # TET nominally 1240° F at 45 krpm to 1100° F at 85 krpm and above (Model C30) # TET nominally 1175° F for full speed range (Model C60) # Temperatures may be reduced with decreasing ambient temperature • Number of injectors used increases with power output Recharge The output contactor is opened disengaging loads while the engine remains operating with fuel. Speed is reduced to supply only power necessary to recharge battery pack to 90-95 percent. This process may take up to 20 minutes. The Recharge state provides the necessary charge required for Cooldown and subsequent Start. The state may be aborted by issuing a Recharge Disable command (system tracks the number of aborted recharges) since normal battery maintenance is not yet completed. 410028-001 Rev. C (July 2004) Page 10 of 22 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 | Stand Alone Operation – Capstone Model C30 and C60
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