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CHAPTER 4 Capstone OPERATING MODES Provide external control connections to the MultiPac Master. All Start/Stop, E-Stop, or other hardwired connections such as Stand Alone enable and Grid Connect enable inputs must be made in the Master’s User Connection Bay. Note these physical connections must be transferred to a new MultiPac Master if the initial Master is taken out of service for any reason. Refer to Chapter 10: Communications in this document for details on pin connections. MultiPac Operation MultiPac operation 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 one unit. The power demand is shared evenly among all units in the MultiPac. 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. Note that each subordinate turbine will still be able to detect, report, and act upon grid protective relay faults such as under/overvoltage and anti-islanding. 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. Refer to the Chapter 9: Protective Relay Functions in this document for the protective functions provided. Any microturbine, except the Master, can be MultiPac disabled to shut it down for repair or standard maintenance and keep the rest of the MultiPac operational. If a Master microturbine needs shutdown, the entire MultiPac must be shut down, and a new Master must be designated to continue MultiPac operation with the remaining microturbines. If a Dual Mode System Controller is installed, this wiring will also require relocation to the new Master microturbine. Note that the Master can also be an Advanced Power Sever, in which case any microturbine in the MultiPac can be taken out of service without impacting the remainder of the MultiPac. Dispatch Modes The sections above describe the two operating modes; Grid Connect and Stand Alone. Each of these operating modes can be dispatched in specific ways called Dispatch modes. Not all Dispatch modes will function with each operating mode. Furthermore, there are additional dispatch capabilities when an Advanced Power Server is the Master in a MultiPac group of microturbines. This section describes the capabilities of a C200 microturbine alone, or when a C200 is acting as the Master in a MultiPac. Refer to the Advanced Power Server Users Manual (400011) for details on the additional dispatch capabilities available when using the APS as the Master. 410066 Rev C (June 2009) 4-9 Capstone reserves the right to change or modify, without notice, the design, specifications, and/or contents of this document without incurring any obligation either with respect to equipment previously sold or in the process of construction.PDF Image | CAPSTONE C200 MICROTURBINE TECHNICAL REFERENCE
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