protective relay definition

protective relay means an electrical device that detects a fault or abnormal condition on a transmission system or a distribution system and that is designed to respond to abnormal variations in input conditions and to cause prescribed contact operation or similar abrupt changes in associated electric control circuits which, in turn, if prescribed parameters are met, initiate the operation of a system element (such as a circuit breaker) to disconnect a faulty element (such as a transformer);
protective relay means a relay that detects a fault or abnormal condition on a power system and initiates appropriate action by the control system;
protective relay means an electrical device that detects a fault or abnormal condition on a transmission system or a distribution system and that is designed to respond to abnormal variations in input conditions and to cause prescribed contact operation or similar abrupt changes in associated electric control circuits which, in turn, if prescribed parameters are met, initiate the operation of a system Element (such as a circuit breaker) to disconnect a faulty Element (such as a transformer);

Examples of protective relay in a sentence

  • An Asynchronous Generating Facility shall comply with the off nominal frequency requirements set forth in the NERC Reliability Standard for Generator Frequency and Voltage Protective Relay Settings, or successor requirements as they may be amended from time to time.

  • An Asynchronous Generating Facility shall comply with the off nominal frequency requirements set forth in the NERC Reliability Standard for Generator Frequency and Voltage Protective Relay Settings as they may be amended from time to time.

  • XXXXXXX EXECUTIVE DIRECTOR TARIFF BRANCH EFFECTIVE 8/20/2013 PURSUANT TO 807 KAR 5:011 SECTION 9 (1) EXfflBIT A PROTECTIVE RELAYS The Protective Relay System will be designed to allow reductions in load at the Hawesville Smelter consistent with a MISO Operating Guide that is expected in July It may require manual or automatically implemented system or a combination of both.

  • The Protective Relay panel shall be located in a conditioned space and shall contain all protective relaying not integral to the switchgears or the CTG protection cubicles.

  • The database may include some alarm points defined by the NorthWestern Energy Protective Relay Department as well as all of the metering quantities as listed in the EMS Databases to Support the Intertie section above.

  • Most of the database is defined by the NorthWestern Energy Protective Relay Department.

  • In addition, the specified voltage range that the Facility shall be designed to operate within shall comply with the standards of NERC Reliability Standard PRC-024-2 entitled “Generator Frequency and Voltage Protective Relay Settings”, without Momentary Cessation, as such standard may be revised, modified, or replaced from time to time.

  • The alarms are generally defined by the NorthWestern Energy Protective Relay Department and include items such as relay watchdogs, relay operations, SF-6 monitors, loss of potential, and other various relay alarms.

  • Any Protective Relay System that causes any Transmission Owner protective device or Local Distribution Company protective or switching device connected to a Transmission Owner bus to operate shall be maintained and tested in accordance with the provisions of this Article 6.

  • MD Excergy: Renumbered to ADMS_098 to avoid duplication with already numbered ADMS_085 OPC interface has been delevered in the past, however, this implmentation of OPC tags from historical data will rqeuire development Perform Short Circuit Analysis ADMS_044 Offeror shall describe their solutions ability to support Fault Magnitude, Fault Type (phase), and Protective Relay Targets from Relay IED SF Fault magnitude and fault type (i.e. the phase) from relays and recloser controllers are supported.


More Definitions of protective relay

protective relay is a device that detects abnormal power system conditions and, in response, initiates automatic control action.
protective relay. System is a group of Protective Relays and associated sensing devices and communications equipment that detects system abnormalities and performs automatic control action to mitigate or reduce adverse effects of such abnormalities.

Related to protective relay

  • Protective glove means a glove made of radiation absorbing materials used to reduce radiation exposure.

  • Adaptive Reuse means a proposed development that will be repurposed from what it was originally built and designed for. Except where stated otherwise, rehabilitation requirements in Threshold apply to Adaptive Reuse projects.

  • Selective Router means the equipment necessary for Selective Routing. "Selective Routing" is the automatic routing of 911/E911 calls to the PSAP that has jurisdictional responsibility for the service address of the caller, irrespective of telephone company exchange or Wire Center boundaries. Selective Routing may also be used for other services.

  • Prospective review means utilization review conducted prior to an admission or a course of treatment.

  • Selective Routing is a service which automatically routes an E911 call to the PSAP that has jurisdictional responsibility for the service address of the telephone that dialed 911, irrespective of telephone company exchange or Wire Center boundaries.

  • Administrative Review means any decision making process of the director requested by a party aggrieved with an action taken under these rules except the hearing process described in OAR 436-001.

  • Protective apron means an apron made of radiation-attenuating materials used to reduce exposure to radiation.

  • Protective Measures means appropriate technical and organisational measures which may include: pseudonymising and encrypting Personal Data, ensuring confidentiality, integrity, availability and resilience of systems and services, ensuring that availability of and access to Personal Data can be restored in a timely manner after an incident, and regularly assessing and evaluating the effectiveness of the such measures adopted by it;

  • Administrative Requirement means any required notice, filing or other similar administrative requirements (other than any requirement for Consent or any Eligibility Requirements) for the Transfer of any Appointment to the applicable Purchaser as set forth in the related Corporate Trust Contract.

  • Competitive Real Estate Commission means a real estate or brokerage commission paid for the purchase or sale of a Property that is reasonable, customary and competitive in light of the size, type and location of the Property.

  • Protective barrier means a barrier of radiation absorbing material(s) used to reduce radiation exposure. The types of protective barriers are as follows:

  • Claims Procedure Order means the Order under the CCAA establishing a claims procedure in respect of the Applicant, as same may be further amended, restated or varied from time to time.

  • Protective services means expedited services that are provided:

  • Active duty military means full-time duty status in the active uniformed service of the United States, including members of the National Guard and Reserve on active duty orders pursuant to 10 U.S.C. Section 1209 and 1211.

  • Armed Forces service medal veteran means any veteran who, while serving on active duty in the U.S. military, ground, naval, or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985 (61 FR 1209).

  • Retrospective review means a review of medical necessity conducted after services have been provided to a patient, but does not include the review of a claim that is limited to an evaluation of reimbursement levels, veracity of documentation, accuracy of coding, or adjudication for payment.

  • Administrative Rules means the rules and procedures of the Issuer relating to the operation of the Plan.

  • Catastrophic disability means a physical and not a psychological

  • Military means the Department of Defense (DOD), the Armed Services, Coast Guard, National Guard, Department of Energy (DOE), or other parties under contract or acting as an agent for the foregoing, who handle military munitions.

  • Catastrophic injury or illness means a life-threatening injury or illness of an employee or a member of an employee's immediate family that totally incapacitates the employee from work, as verified by a licensed physician, and forces the employee to exhaust all leave time earned by that employee, resulting in the loss of compensation from the state for the employee. Conditions that are short-term in nature, including, but not limited to, common illnesses such as influenza and the measles, and common injuries, are not catastrophic. Chronic illnesses or injuries, such as cancer or major surgery, that result in intermittent absences from work and that are long-term in nature and require long recuperation periods may be considered catastrophic.

  • Catastrophic illness or “injury” means an illness or injury that is expected to incapacitate the employee for an extended period of time, or that incapacitates a member of the employee’s family which incapacity requires the employee to take time off from work for an extended period of time to care for that family member, and taking extended time off work creates a financial hardship for the employee because he or she has exhausted all of his or her sick leave and other paid time off.

  • Uniformed personnel means: (a) Law enforcement officers as

  • Violent juvenile felony means any of the delinquent acts enumerated in subsection B or C of

  • Protective custody means the temporary custody of an individual by a peace officer with or without the individual's consent for the purpose of protecting that individual's health and safety, or the health and safety of the public, and for the purpose of transporting the individual under section 276, 408, or 427 if the individual appears, in the judgment of the peace officer, to be a person requiring treatment or is a person requiring treatment. Protective custody is civil in nature and is not an arrest.

  • Adhesive remover means a product designed to remove adhesive from either a specific substrate or a variety of substrates. “Adhesive Remover” does not include products that remove adhesives intended for use on humans or animals.

  • Adverse employment action means an action that affects an em- ployee ’s compensation, promotion, transfer, work assignment, or performance evaluation, or any other employment action that would dissuade a reasonable employee from making or supporting a report of abuse or neglect under Family Code 261.101.