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Capstone Turbine Corporation MicroTurbine User’s Manual Switching Times for Dual Mode Capstone When a utility outage occurs, protected loads will be without power for up to seven minutes as the system transitions from Grid Connect to Stand Alone mode. When utility power is restored, the protected loads return to grid power within ten seconds, but the MicroTurbine will be offline for up to 32 minutes as it reconfigures to Grid Connect Mode. MultiPac Operation Capstone MicroTurbines may be configured into an array of up to 20 MicroTurbines (up to 100 with the optional Capstone PowerServer). Such an array will operate as a single power generation source. This MultiPac capability features a single control point (the master unit) and the combined synchronous output of the units in the MultiPac. Individual MicroTurbines share power, current, and load on both a dynamic and steady state basis. MultiPac operation allows controlling the individual MicroTurbines through the master unit. Observation and control of each MicroTurbine in a MultiPac can be accomplished by the connection of a communications interface device through the master unit or Capstone PowerServer. Any MicroTurbine unit can be designated as the master unit. This unit then becomes the physical and logical control connection point for the entire MultiPac system. Contact your Capstone Authorized Service Provider for additional information on establishment of a MultiPac system. MultiPac Grid Connect Operation In Grid Connect operation, each MicroTurbine independently synchronizes to the grid. MultiPac functionality provides a single interface point for Start, Stop, and Power Demand control. It is not necessary to connect a modem or external power meter to each individual MicroTurbine in a MultiPac, only to the master unit. MultiPac Stand Alone Operation In Stand Alone operation, MultiPac functionality provides the capability to synchronize the voltage source outputs of the individual MicroTurbines such that they share power and current on both a dynamic and steady state basis. The master MicroTurbine unit broadcasts synchronization data to the other units over a dedicated Capstone- proprietary digital communications bus. MultiPac Redundancy In MultiPac operation, if an individual MicroTurbine fails (shuts down due to a fault), the remaining units will continue to operate. If the master unit fails and communication is not possible, the entire MultiPac system will shut down. If the master unit fails, another unit in the MultiPac system can be manually programmed to be the new master unit (the MultiPac system must not be operating while this re-configuration is performed). MultiPac Enable/Disable Individual MicroTurbines must be disabled from a MultiPac system for service and maintenance. When service or maintenance is completed, the individual MicroTurbines must be added back into the MultiPac system (i.e., re-enabled). For data on the steps to Enable/Disable a MicroTurbine unit in a MultiPac system, refer to the Display Panel Menu Screens section on the top-level System Data Menu and the System Configuration Submenu, or contact your Capstone Authorized Service Provider. Page 38 of 56 400001-001 Rev. C (February 2005) 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 | 2002 Capstone User Guide
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