Criteria for Permanent Blocking and Tripping Sample Clauses

The 'Criteria for Permanent Blocking and Tripping' clause defines the specific conditions under which a system or device must be permanently disabled (blocked) or automatically shut down (tripped) to ensure safety and prevent damage. This typically involves outlining measurable thresholds, such as voltage, current, or temperature limits, that, when exceeded, trigger these protective actions. By establishing clear operational boundaries, the clause helps prevent equipment failure, ensures personnel safety, and maintains system integrity by mandating decisive responses to hazardous or abnormal situations.
Criteria for Permanent Blocking and Tripping. The Merchant Transmission Facility system shall be permitted, but not required, to trip for the following extreme system conditions:
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Criteria for Permanent Blocking and Tripping. The Merchant Transmission Facility system shall be permitted, but not required, to trip for the following extreme system conditions: Positive-sequence component of the fundamental frequency AC bus voltage at either the ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇ 345kV Substation 345kV AC bus or the Bergen 230kV AC bus greater than the upper limit or less than the lower limit as specified in Figure G-1. For the period up to 0.5 seconds, the upper voltage limit specified in Figure G-1 shall be applied to the greater of the fundamental-frequency positive-sequence AC bus voltage in pu on the nominal line-to-line rms voltage, the crest phase-to-ground voltage of any AC bus phase in pu of times the nominal line-to-line rms voltage, and the crest phase-to-phase voltage of any AC bus phase in pu of times the nominal line-to-line rms AC bus voltage. Negative-sequence component of the fundamental frequency AC bus voltage at either the ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇ 345kV Substation 345kV AC bus or the Bergen 230kV AC bus greater than the limits specified in Figure G-2. AC system fundamental frequency outside of the limits specified in Figure G-3. System conditions causing the AC system short-circuit capacity at the West ▇▇▇▇ ▇▇▇▇▇▇ 345kV Substation 345kV AC bus to fall below 500MVA provided the AC system condition is not the result of the performance of the Merchant Transmission Facility. Figure G-2 Voltage imbalance (negative sequence component) threshold for permanent blocking and converter station tripping.
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