Technical Standards Applicable to a Wind Generating Plant i. Low Voltage Ride-Through (LVRT) Capability A wind generating plant shall be able to remain online during voltage disturbances up to the time periods and associated voltage levels set forth in the standard below. The LVRT standard provides for a transition period standard and a post-transition period standard.
Technical Standards Applicable to a Wind Generating Plant i. Low Voltage Ride-Through (LVRT) Capability A wind generating plant shall be able to remain online during voltage disturbances up to the time periods and associated voltage levels set forth in the standard below. The LVRT standard provides for a transition period standard and a post-transition period standard. Transition Period LVRT Standard The transition period standard applies to wind generating plants subject to FERC Order 661 that have either: (i) interconnection agreements signed and filed with the Commission, filed with the Commission in unexecuted form, finally executed as conforming agreements, or filed with the Commission as non-conforming agreements between January 1, 2006 and December 31, 2006, with a scheduled in-service date no later than December 31, 2007, or (ii) wind generating turbines subject to a wind turbine procurement contract executed prior to December 31, 2005, for delivery through 2007.
Technical Standards Applicable to a Wind Generating Plant i. Low Voltage Ride-Through (LVRT) Capability A wind generating plant shall be able to remain online during voltage disturbances up to the time periods and associated voltage levels set forth in the standard below. The LVRT standard provides for a transition period standard and a post-transition period standard. Transition Period LVRT Standard The transition period standard applies to wind generating plants subject to FERC Order 661 that have either: (i) interconnection agreements signed and filed with the Commission, filed with the Commission in unexecuted form, finally executed as conforming agreements, or filed with the Commission as non-conforming agreements between January 1, 2006 and December 31, 2006, with a scheduled in-service date no later than December 31, 2007, or (ii) wind generating turbines subject to a wind turbine procurement contract executed prior to December 31, 2005, for delivery through 2007. Wind generating plants are required to remain in-service during three-phase faults with normal clearing (which is a time period of approximately 4 - 9 cycles) and single line to ground faults with delayed clearing, and subsequent post-fault voltage recovery to prefault voltage unless clearing the fault effectively disconnects the generator from the system. The clearing time requirement for a three-phase fault will be specific to the wind generating plant substation location, as determined by and documented by the Transmission Owner for the Transmission District to which the wind generating plant will be interconnected. The maximum clearing time the wind generating plant shall be required to withstand for a three-phase fault shall be 9 cycles at a voltage as low as 0.15 p.u., as measured at the high side of the wind generating plant step-up transformer (i.e. the transformer that steps the voltage up to the transmission interconnection voltage or "GSU"), after which, if the fault remains following the location-specific normal clearing time for three-phase faults, the wind generating plant may disconnect from the transmission system. This requirement does not apply to faults that would occur between the wind generator terminals and the high side of the GSU or to faults that would result in a voltage lower than 0.15 per unit on the high side of the GSU serving the facility. Wind generating plants may be tripped after the fault period if this action is intended as part of a special protection system. Wind generating plants may meet the LVRT requiremen...
Technical Standards Applicable to a Wind Generating Plant i. Low Voltage Ride-Through (LVRT)
Technical Standards Applicable to a Wind Generating Plant i. Low Voltage Ride-Through (LVRT) Capability A wind generating plant shall be able to remain online during voltage disturbances up to the time periods and associated voltage levels set forth in the applicable NERC or WECC Standard. QUALIFYING FACILITY POWER PURCHASE AGREEMENT BETWEEN NORTHWESTERN CORPORATION D/B/A NORTHWESTERN ENERGY AND NEW COLONY WIND, LLC DATED EFFECTIVE AS OF May [23], 2017 TABLE OF CONTENTS [REVISE UPON EXECUTION] PREAMBLE 1 RECITALS: 1 ARTICLE 1: DEFINITIONS 1 ARTICLE 2: RULES OF INTERPRETATION 9 ARTICLE 3: SELLER’S REPRESENTATIONS AND WARRANTIES 9 ARTICLE 4: CONDITIONS PRECEDENT 11 ARTICLE 5: PURCHASE AND SALE OF ENERGY, CAPICITY AND ENVIRONMENTAL ATTRIBUTES 12 ARTICLE 6: OPERATIONS 16 ARTICLE 7: SECURITY & DAMAGES 20 ARTICLE 8: EVENTS OF DEFAULT AND TERMINATION 211 ARTICLE 9: INDEMNIFICATION AND LIABILITY 22 ARTICLE 10: INSURANCE 25 ARTICLE 11: NOTICES 26 ARTICLE 12: ASSIGNMENT AND OWNERSHIP 27 ARTICLE 13: TAXES 28 ARTICLE 14: FORCE MAJEURE 30 ARTICLE 15: CONFIDENTIALITY 31 ARTICLE 16: GENERAL PROVISIONS 32 ARTICLE 17: REGULATION BY THE MONTANA PUBLIC SERVICE COMMISSION 34 ARTICLE 18: LOCAL HIRING AND WAGE STANDARDS 35
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Technical Standards Applicable to a Wind Generating Plant
