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Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 • USA Technical Reference: Component Descriptions - Model C60 MicroTurbine Generator Inductor 1. Smooth AC current waveform RippleproducedbyIGBTswitching HighfrequencyIGBTswitchinghelpsreduceripple 2. Inductor has 3 phases that each provide 100 uH of inductance 3. Connections made to ECM IGBT InductorA2toECMIGBT2(HB1) InductorB2toECMIGBT4(HB2) InductorC2toECMIGBT3(HB3) 4. More component stress is applied with Reducedairflow Increasedcurrent 5. Verify operation by Measureopenbetweenphasesandground Measureopenbetweenphaseswhengeneratorleadsdisconnected Brake Resistor The brake resistor is a low impedance path to discharge the DC Bus voltage in the MicroTurbine system. The brake resistor supplies an alternate path for power from the generator if a load is suddenly removed. 1. Resistance measures 6.7Ω +/- 20% 2. ECM IGBT has additional transistor to switch bus power 3. Connection to Brake Resistor +DCbusalwayspresentatterminalE1ofECMPowerBoard -DCbusswitchedthroughECMIGBT1(HB4)connection 4. Failure of Transitory BrakeIGBTfault(9006) Measureshortbetweenpin1and2ofQ1 Fan Inverter Board Located in the ECM, provides power to both the ECM and LCM fans. 1. ConnectiontoECMPowerBoard ProvidesDCbuspowertocontrolfanmotor J3onECMPowerBoardtoJ1onFanInverterBoard 2. ConnectiontoFans SwitchedDCbuspowerprovidedtofan J2andJ3outputsofFanInverterboard 410035-001 Rev B (August 2003) Page 16 of 38 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 Component Descriptions Capstone Model C60 MicroTurbine
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