PDF Publication Title:
Text from PDF Page: 021
Capstone Turbine Corporation 21211 Nordhoff Street Chatsworth CA 91311 USA Technical Reference: Capstone MicroTurbine Electrical Installation Non-linear lighting loads: Fluorescent ballasts and sodium lamps There are two major benefits that are worth consideration. First, the energy storage in the transformer windings will reduce voltage drop during DOL (across-the-line) motor starts. Second, for 400V applications, using an operating voltage of 480V on the microturbine side of the transformer will provide up to 20% higher kVA margin available for starting large electric loads. For sites requiring an isolation transformer, the recommended configuration is as follows: - Delta connection on microturbine side. - Wye connection is recommended on load side. However, delta connection on load side is also acceptable if required by installation. - 480 volts output setting on microturbine side (may not be commercially available in your country, so 400V is acceptable, but this limits any motor starting benefits). - Impedance between 4-8%. Lower impedance will provide overall better voltage regulation, but may require a soft start ramp to be configured on the microturbines for installations with 3 or more microturbines. Autotransformers are not allowed as an alternative to the required isolation transformer, since they do not provide the galvanic isolation and delta winding which minimize the transmission of harmonics. 5.4. Transformer Sizing Recommendation For any SA installation requiring a transformer, the following sizing recommendations are provided. Per the discussion in Section 5.3, the recommended configuration is one or two large transformers after the paralleling of the microturbines, so these recommended sizes can be summed based on the total number of units connected to the same paralleling bus. o 45kVAperC30system o 112.5kVAperC65system o 300kVAperC200system o 900kVAperC600system o 1200kVAperC800system o 1500kVAperC1000system 5.5. Generic Diagrams of Isolation Transformer Installation Figure 14 through Figure 16 represent examples of allowed configurations for SA and DM installations. Capstone recommends any transformers should be placed after the paralleling of the Multipac. Figure 17 represents a connection that is not recommended, but may be possible. If individual transformers are used before the paralleling of the microturbines, these transformers must be matched with identical impedance, kVA rating, wiring sequence, and phase difference (primary to secondary). 410009 Rev F (October 2013) Page 21 of 31 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 | Technical Reference Capstone MicroTurbine Electrical Installation
PDF Search Title:
Technical Reference Capstone MicroTurbine Electrical InstallationOriginal File Name Searched:
410009F_TR_ELECTRICAL_INSTALLATION.pdfDIY PDF Search: Google It | Yahoo | Bing
Capstone Turbine and Microturbine: Capstone microturbines used and new surplus for sale listing More Info
Consulting and Strategy Services: Need help with Capstone Turbine, sizing systems, applications, or renewable energy strategy, we are here to assist More Info
Container Lumber Dry Kiln: Since 1991 developing and innovating dry kilns using standard shipping containers More Info
Supercritical CO2 Lumber Dry Kiln: Compact fast drying in 3 days or less for small amounts of wood and lumber drying More Info
BitCoin Mining: Bitcoin Mining and Cryptocurrency... More Info
Publications: Capstone Turbine publications for microturbine and distributed energy More Info
FileMaker Software for Renewable Energy Developing database software for the renewable energy industry More Info
CO2 Gas to Liquids On-Demand Production Cart Developing a supercritical CO2 to alcohol on-demand production system (via Nafion reverse fuel cell) More Info
Stranded Gas for low cost power Bitcoin Mining Using stranded gas for generators may provide breakthrough low power costs for cryptocurrency miners. More Info
CONTACT TEL: 608-238-6001 Email: greg@globalmicroturbine.com (Standard Web Page)