VOLTAGE CONTROLLED TIME OVERCURRENT RELAYS (51V) Clause Samples

The Voltage Controlled Time Overcurrent Relays (51V) clause defines the requirements and operational parameters for protective relays that respond to overcurrent conditions, but only when the system voltage is above a specified threshold. In practice, these relays monitor both current and voltage, ensuring that the relay only initiates a trip if an overcurrent occurs while the voltage is sufficiently high, thereby preventing unnecessary tripping during low-voltage situations such as system faults or voltage sags. This clause is essential for enhancing system reliability by ensuring that overcurrent protection is coordinated with voltage conditions, reducing the risk of nuisance trips and improving overall power system stability.
VOLTAGE CONTROLLED TIME OVERCURRENT RELAYS (51V). In applications where the Generation Facility is interconnected to GPU Energy's distribution system (34.5 kV Wye and below), voltage - controlled time overcurrent relays must be provided. These relays shall be connected to current transformers located on the generator or its associated breaker. These relays shall receive potential from the generator voltage transformers.
View Source

Related to VOLTAGE CONTROLLED TIME OVERCURRENT RELAYS (51V)

  • 190 Contract Complete This contract is the final expression of the Parties' agreement. There are no understandings, agreements, or representations, expressed or implied, which are not specified in this contract.

  • Under-Frequency and Over Frequency Conditions The New York State Transmission System is designed to automatically activate a load- shed program as required by the NPCC in the event of an under-frequency system disturbance. Developer shall implement under-frequency and over-frequency relay set points for the Large Generating Facility as required by the NPCC to ensure “ride through” capability of the New York State Transmission System. Large Generating Facility response to frequency deviations of predetermined magnitudes, both under-frequency and over-frequency deviations, shall be studied and coordinated with the NYISO and Connecting Transmission Owner in accordance with Good Utility Practice. The term “ride through” as used herein shall mean the ability of a Generating Facility to stay connected to and synchronized with the New York State Transmission System during system disturbances within a range of under-frequency and over-frequency conditions, in accordance with Good Utility Practice and with NPCC Regional Reliability Reference Directory # 12, or its successor.

  • Traffic Measurement and Billing over Interconnection Trunks 6.1 For billing purposes, each Party shall pass Calling Party Number (CPN) information on at least ninety-five percent (95%) of calls carried over the Interconnection Trunks. 6.1.1 As used in this Section 6, “Traffic Rate” means the applicable Reciprocal Compensation Traffic rate, Measured Internet Traffic rate, intrastate Switched Exchange Access Service rate, interstate Switched Exchange Access Service rate, or intrastate/interstate Tandem Transit Traffic rate, as provided in the Pricing Attachment, an applicable Tariff, or, for Measured Internet Traffic, the FCC Internet Order. 6.1.2 If the originating Party passes CPN on ninety-five percent (95%) or more of its calls, the receiving Party shall ▇▇▇▇ the originating Party the Traffic Rate applicable to each relevant minute of traffic for which CPN is passed. For any remaining (up to 5%) calls without CPN information, the receiving Party shall ▇▇▇▇ the originating Party for such traffic at the Traffic Rate applicable to each relevant minute of traffic, in direct proportion to the minutes of use of calls passed with CPN information. 6.1.3 If the originating Party passes CPN on less than ninety-five percent (95%) of its calls and the originating Party chooses to combine Reciprocal Compensation Traffic and Toll Traffic on the same trunk group, the receiving Party shall ▇▇▇▇ the higher of its interstate Switched Exchange Access Service rates or its intrastate Switched Exchange Access Services rates for all traffic that is passed without CPN, unless the Parties agree that other rates should apply to such traffic. 6.2 At such time as a receiving Party has the capability, on an automated basis, to use such CPN to classify traffic delivered over Interconnection Trunks by the other Party by Traffic Rate type (e.g., Reciprocal Compensation Traffic/Measured Internet Traffic, intrastate Switched Exchange Access Service, interstate Switched Exchange Access Service, or intrastate/interstate Tandem Transit Traffic), such receiving Party shall ▇▇▇▇ the originating Party the Traffic Rate applicable to each relevant minute of traffic for which CPN is passed. If the receiving Party lacks the capability, on an automated basis, to use CPN information on an automated basis to classify traffic delivered by the other Party by Traffic Rate type, the originating Party will supply Traffic Factor 1 and Traffic Factor

  • Local Circuit Switching Capability, including Tandem Switching Capability 4.2.1 Local circuit switching capability is defined as all line-side and trunk-side facilities, plus the features, functions, and capabilities of the switch. The features, functions, and capabilities of the switch shall include the basic switching function of connecting lines to lines, lines to trunks, trunks to lines, and trunks to trunks. Local circuit switching includes all vertical features that the switch is capable of providing, including custom calling, custom local area signalling service features, and Centrex, as well as any technically feasible customized routing functions. 4.2.2 Notwithstanding BellSouth’s general duty to unbundle local circuit switching, BellSouth shall not be required to unbundle local circuit switching for ▇▇▇▇ when ▇▇▇▇: (1) serves an End User with four (4) or more voice-grade (DS0) equivalents or lines served by BellSouth in Zone 1 of one of the following MSAs: Atlanta, GA;

  • Interconnection Facility Options The Intercarrier Compensation provisions of this Agreement shall apply to the exchange of Exchange Service (EAS/Local) traffic between CLEC's network and Qwest's network. Where either Party acts as an IntraLATA Toll provider, each Party shall ▇▇▇▇ the other the appropriate charges pursuant to its respective tariff or price lists. Where either Party interconnects and delivers traffic to the other from third parties, each Party shall ▇▇▇▇ such third parties the appropriate charges pursuant to its respective tariffs, price lists or contractual offerings for such third party terminations. Absent a separately negotiated agreement to the contrary, the Parties will directly exchange traffic between their respective networks without the use of third party transit providers.