protective relay

protective relay

[prə′tek·tiv ′rē‚lā]
(electricity)
A relay whose principal function is to protect service from interruption or to prevent or limit damage to apparatus.
References in periodicals archive ?
Tenders are invited for procurement for testing and caliberation of protective relay of electrical power system of vfj.
EPS focuses on highly technical testing and engineering services that occur in electrical substations covering a broad range of equipment including protective relay and control systems, breakers, transformers, batteries and switchgear.
[ClickPress, Tue Sep 11 2018] The protective relay market is projected to grow from an estimated USD 3.31 Billion in 2016 to USD 4.54 Billion by 2021, registering a CAGR of 6.5% from 2016 to 2021.
[UKPRwire, Tue Sep 11 2018] The protective relay market is projected to grow from an estimated USD 3.31 Billion in 2016 to USD 4.54 Billion by 2021, registering a CAGR of 6.5% from 2016 to 2021.
Michail Maniatakos , a research professor at the NYU Tandon School of Engineering and an assistant professor of electrical and computer engineering at NYU Abu Dhabi, will detail the discovery of a security flaw in the authentication mechanism of a legacy protective relay -- a component that responds to changes in flow across the grid to isolate electrical faults.
The project also includes adding new substation equipment, including a circuit breaker and new protective relay devices designed to remotely monitor operations.
The program is aimed at training some of the most valued and specialized people who keep the nation's electrical grid up and running: protective relay technicians, substation electricians, field service engineers.
Platform's features have been defined taking into account PQ, protective relay functions and synchronization standards.
Department of Energy (DOE) researchers hacked into a replica of a power plant's control system, overriding the reconnection synchronism enforced by the generator's protective relay. Aurora is the name associated with the experiment and more generally with power generator communications vulnerability.
The messaging encourages power companies to donate protective relay discards to the ENOSERV Training Facility for educational use.
According to Don Elliott (P.Eng.), senior power system engineer, the mill chose to install a new type of protective relay from Schweitzer Engineering Laboratories (SEL), the SEL-311L Line Current Differential System, using their installed fiber-optic cable from plant to generating station.
19-21, 31st Annual Western Protective Relay Conference (WPRC), Ag Trade Center, Spokane, WA.

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