Results 201 to 210 of about 12,784 (247)

Simplicity in protective relaying

Electrical Engineering, 1946
SIMPLICITY is of paramount importance when designing and laying out protective relay circuits. These circuits are called upon to operate so infrequently that they should be more reliable than the apparatus or lines they protect. Certain limiting conditions and requirements requested by circuit designers generally cause false tripping and make the ...
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Green protective relay

2013 International Conference on Green Computing, Communication and Conservation of Energy (ICGCE), 2013
Growing concern over the ever-increasing energy needs prompted various research in energy conservation field. Many organizations have initiated programs to save energy technologies that would enable them to meet the demands of energy. A variety of devices and systems has been created to conserve energy.
Akash Saha, Ch. Krishnakantha
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Protective Relays

2023
Samir I. Abood, John Fuller
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Protective Relays on Pa. Locomotives

Transactions of the American Institute of Electrical Engineers, 1934
No current rupturing device is provided between pantograph and main transformer on electric locomotives recently placed in operation on the Pennsylvania Railroad; instead a ``pantograph relay'' is used which is connected so as to utilize the substation circuit breakers to open high voltage short circuits, grounds, or overloads ofi the locomotive.
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Selective electrochemical synthesis of urea from nitrate and CO2 via relay catalysis on hybrid catalysts

Nature Catalysis, 2023
Ivan Grigioni, Bilu Liu, Jennifer B Dunn
exaly  

Alloying of Cu with Ru Enabling the Relay Catalysis for Reduction of Nitrate to Ammonia

Advanced Materials, 2023
Wensheng Gao, Can Li
exaly  

Rectifier relay for transformer protection

Electrical Engineering, 1945
THE BASIC PRINCIPLE of differential protection of electric equipment consists of measuring the sum of the currents at the various terminals of the generator, transformer, or bus. If the vector sum of these currents is substantially zero, there is no fault; if the vector sum is not zero, a fault condition is indicated.
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Ultralow overpotential nitrate reduction to ammonia via a three-step relay mechanism

Nature Catalysis, 2023
Shu-He Han, Hongjiao Li
exaly  

Relay Protection

2012
C.R. Bayliss, B.J. Hardy
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Protective Relaying

2006
J. Lewis Blackburn, Thomas J. Domin
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