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TECH REF C30 Grid Connect Op

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TECH REF C30 Grid Connect Op ( tech-ref-c30-grid-connect-op )

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Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 • USA Technical Reference: Grid Connect Operation – Capstone Models C30 and C60/C65 • A timed shutdown occurs if a 3004 “BOTH TET” fault occurs: 10 minutes for the C30 5 minutes for the C60/C65 Shutdown Upon completion of Cooldown, the software transitions to the Shutdown state. The following events occur: • Stop generator • Turn off fans • Open output contactor Warmdown This state is characterized by a system fault or abnormal user shutdown. In the case of a Grid or Load fault, control will transition to Warmdown. With a load fault, the output contactor is opened immediately and therefore utility power is not available to support Cooldown. The dump valve is pulsed to control speed, allowing airflow for cooling, while preventing engine over speed conditions. As heat is removed from the recuperator, the engine will coast to a stop. The following events occur: • Voltage Transient is sensed • Power production is ceased Output contactor is opened • The fuel solenoids are closed Intra A power is off Intra C power is off (RFC) • Energy produced while the engine decelerates is dissipated to the brake resistor • Enter Fault state at 427° C (800° F) TET E-Stop Shutdown This state is characterized by a user-initiated effort to halt MicroTurbine operation immediately and IS NOT RECOMMENDED. E-Stop shutdowns provide no cooling to the engine components and the engine coasts to a stop, causing wear to the bearings. The number of emergency stops is tracked by the software and may void the warranty should engine failure occur. The following events occur: • Power export ceases immediately Output contactor opens • Gas fuel solenoid valve is closed Intra A power is Off Intra C power is Off (RFC) • Dump valve opens to remove air flow from engine - preventing engine over speed conditions • Rotor coasts to a stop 410027 Rev F (February 2006) Page 10 of 23 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.

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