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Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 • USA Technical Reference: MultiPac Operation and Technical Information MultiPac Operation The MultiPac is designed to maximize the combined output power of multiple MicroTurbines. It also offers redundancy - if an individual turbine shuts down due to a fault, depending on the fault, remaining units will still continue to function. MicroTurbines operating in a MultiPac operate in a Load Balanced configuration. A start command to the master is propagated to all systems in the MultiPac. All units start and stop as a unit. The power demand is shared evenly among all units in the MultiPac. For example: For three Model C60 MicroTurbines with a combined power demand of 150 kW, all three start and supply 50 kW. If any turbine, including the master, experiences an operational fault such as a “6012 Fuel Fault”, the remainder of the turbines continue operating - with the master increasing the power demand to each of those systems to redistribute the load that the inoperative turbine no longer provides. If the master turbine experiences a hard failure in the power electronics, where no power exists to the electronics boards, command and control to the remaining turbines in the system will be made unavailable, and all operating turbines will be forced to generate power and retain functional settings at the last commanded values. As a result, each subordinate turbine will still be able to detect, report and act upon grid protective relay faults such as under/over voltage, anti-islanding and reverse power flow. In other words, MicroTurbine Protective Relay functionality is non-volatile, fully independent of MultiPac operation and remains operational on each MicroTurbine at all times regardless of the MicroTurbine’s state or condition. Any turbine can be MultiPac disabled to shut it down for repair or standard maintenance and keep the rest of the MultiPac operational. If the master needs shutdown, the entire MultiPac must be shut down, and a new master must be designated to continue MultiPac operation with the remaining turbines. These scenarios are described in the section “MultiPac Software Configuration”. If a Dual Mode Controller is installed, this wiring will also require relocation to the new master turbine. In general, the following hardware and software actions are required independently to configure MicroTurbines in MultiPac mode: Perform hardware contact closures and signal connections on all turbines. Connections are made in the communication bay (see Communication Bay Interconnections). Configure operating mode (Stand Alone (SA), Grid Connect (GC) or Dual Mode) Configure Start Input (User, Remote, Remote SA/User GC, Remote GC/User SA) Connect E-Stop (Local and/or Global) Connect battery wake-up (remote operation) Connect Ethernet and RS-485 signal interconnections EstablishPowerConnections(seePowerConnections) 410032 Rev D (February 2006) Page 2 of 16 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 MultiPac Operation Technical Information
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