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Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 • USA User’s Manual: Advanced Power Server (APS) Model 145 User's Manual The Maximum Efficiency mode can result in some units being shut down, which means fewer turbines will be available to pick up increases in power demand. Spinning Reserve is used to ensure stable turbine operation even when the efficiency-optimized MultiPac is challenged with fast power demand changes. This value acts as an imaginary power demand and should be set to the approximate value of the expected maximum power demand change. When the spinning reserve value is added to the actual power demand, the result is used to determine the number of operating turbines required. The actual power demand is then divided by the number of operating turbines in order to set the individual power demands for each turbine. This ensures that a demand change equal to the spinning reserve setting can be done without starting an additional turbine, for a faster power response and more stable operation. The faster response to changes in power demand comes at a small cost to overall system efficiency. Spinning Reserve can result in additional turbines being used to share the power demand. See Figure 10. To set the spinning reserve, touch the SET button under Spinning Reserve on the screen. This opens the data entry keypad as shown in Figure 5. Use the touch screen buttons on the keypad to enter the power demand value in kilowatts. Touch the OK button to save the value and close the keypad. 2.3.3.3 Power Factor (Grid Connect) The microturbine power factor settings enable the customer to adjust the microturbine’s KVA power factor to supplement reactive power loads and reduce demand from the utility company. On the APS, the Power Factor field on the touch screen (see Figure 7 for location) lets the user adjust the power factor for a Grid Connect group. See Figure 10. To set the power factor, touch the SET button under Power Factor on the screen. This opens the data entry keypad as shown in Figure 5. Use the touch screen buttons on the keypad to enter the power factor value as follows: • C65: from 0.80 to 1.00 in increments of 0.01. • C200/C1000: from 0.90 to 1.00 in increments of 0.01. Touch the OK button to save the value and close the keypad. The LAG/LEAD button to the right of the Power Factor field is used to determine if the power factor will be leading or lagging. Touch this button to select LAG for lagging or LEAD for leading. 400026 Rev E (March 2014) Page 16 of 56 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. NOTE: Power factor settings are available for CE systems only and can only be applied if the turbine software is compatible. If the turbine software does not have the power factor correction capability, the power factor settings on the APS screen will not be available for use. The software versions that accept power factor settings are as follows: 1. Software version 5.40 (gaseous) or 2.20 (liquid fuel) and higher for C65 microturbines. 2. Software version 1.80 (gaseous) and higher for C200 microturbines and C600/C800/C1000 turbine assemblies. NOTE: The power factor must be configured using CRMS-APS for User Input, as opposed to Fixed or Table, in order to change the power factor demand or LEAD/LAG on the touch screen. Refer to the APS-145 Technical Reference (Table 1) for details.PDF Image | Advanced Power Server (APS) Model 145 User's Manual
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