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CHAPTER 8 Capstone ELECTRICAL RATINGS Auxiliary Output Introduction This auxiliary contactor is a small AC power output connection that is available in the Power Connection Bay. Its purpose is to supply AC output power of the same type as the primary output power to critical loads prior to the primary load being energized. This power can be used to enable control systems, pumps for water systems, heating systems, or any other systems that need to be active for a certain amount of time before and after the load is enabled. Capacity The auxiliary AC power output is not an independent power source from the primary AC power output, however it is an independently switched output. This means that the capacity of the system AC output equals the sum of the outputs of the main and auxiliary output. The auxiliary output is capable of delivering up to 10kVA. Timing The auxiliary AC power output is energized once the system reaches the run state and stays energized until the shutdown, fault or restart states are reached. Additionally, a manual command and a discrete input control are available. These control the transition from the run state to the load state and allow the user the ability to control the timing between the auxiliary output contactor and the main output contactor closing. This timing control is also available in the form of a user settable timer for the routine shutdown transition from cooldown to the shutdown state. These various inputs and timers allow the user to customize the auxiliary output power for his particular site needs. Measurement Accuracy The displays of the output voltages, currents, frequencies, and power have typical accuracies and coefficients as presented in Table 8-3. Table 8-3. Typical/Maximum Instrumentation Accuracy and Coefficients Instrumentation Item Accuracy and Coefficients (Typical/Maximum) Current Current Temperature Coefficient Voltage Voltage Temperature Coefficient Output Power Output Power Temperature Coefficient Output Frequency Output Frequency Temperature Coefficient Real Time Clock 410066 Rev C (June 2009) 1.5% of Full Scale (typical) / 3.0% (maximum) 0.2% of Full Scale over –20 to 50 C range 1.0% of Full Scale (typical) / 2.0% (maximum) 0.2% of Full Scale over –20 to 50 C range 2.5% of Full Scale (typical) / 5.0%(maximum) 0.4% of Full Scale over –20 to 50 C range 0.05% of Reading (or Indication) 0.005% of Reading over –20 to 50 C range 1 minute per month 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. 8-8PDF Image | CAPSTONE C200 MICROTURBINE TECHNICAL REFERENCE
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