PDF Publication Title:
Text from PDF Page: 079
CHAPTER 9 Capstone PROTECTIVE RELAY FUNCTIONS Protective Functions The protective functions included in the C200 microturbine are described in this section. Voltage sensing and signal processing are described in the System Overview section. The Protective Function designator numbers correspond to those published by IEEE1. When a protective function initiates a shutdown, the following occurs: 1. Output power flow ceases within one millisecond for at least four milliseconds 2. The main power output contactor is opened within 100 milliseconds. 3. Fuel flow to the microturbine stops, and 4. A warm shutdown is initiated, during which control power is supplied from the microturbine generator as it slows down. The warmdown lasts 1 – 2 minutes before the rotor is stopped. Under Voltage (Protective Function 27) Primary Under Voltage Trip The Primary Under Voltage is adjustable from 352 VL-L up to the Over Voltage set point. (Initial factory setting = 422 V). The time period is adjustable from 0.01 to 10.00 seconds in 0.01 second increments. (Initial factory setting = 2.00 seconds) The UL1741 requirement for this function is: The device should cease to energize the output within 2 seconds when any of the phase voltages is lower than 244 VL-N while the other phase voltages remain at 277 VL-N As shipped, each microturbine is tested to verify that it meets the UL1741 requirement to initiate a Grid Fault Shutdown, if any phase-to-neutral voltage sags to less than 244 VL-N for duration greater than 2.0 seconds. The primary trip voltage set point may be adjusted upwards within the range indicated in Table 9-1 and still comply with UL1741. The primary duration to trip may also be adjusted downwards as indicated in Table 9-1 and still comply with UL1741. Fast Under Voltage Trip The Fast Under Voltage is adjustable from 0 VL-L up to the Under Voltage set point. (Initial factory setting = 240 VL-L). The time period is adjustable from 0.03 to 1.00 second in 0.01 second increments. (Initial factory setting = 0.16 seconds) 1 IEEE C37.90-1989. IEEE Standard relays and Relay Systems Associated with Electric Power Apparatus. Institute of Electrical and Electronics Engineers, New York. 410066 Rev C (June 2009) 9-2 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 All protective function measurements and calculations are based on the Line-to- Neutral voltage values. However, for convenience, all protective function settings are entered as equivalent Line-to-Line voltage values.PDF Image | CAPSTONE C200 MICROTURBINE TECHNICAL REFERENCE
PDF Search Title:
CAPSTONE C200 MICROTURBINE TECHNICAL REFERENCEOriginal File Name Searched:
410066C_C200_Tech_Ref.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 | RSS | AMP |