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Protective Relays on Pa. Locomotives
Transactions of the American Institute of Electrical Engineers, 1934No 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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Rectifier relay for transformer protection
Electrical Engineering, 1945THE 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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Microgrid Protection through Adaptive Overcurrent Relay Coordination
Electricity, 2021Haneen Bawayan, Mohamed Younis
exaly
Electrical protection relays. Information and requirements for all protection relays
2015+6 more sources
Electrical protection relays. Requirements for the principal families of protection relays
2013+6 more sources
Novel method for adaptive relay protection in distribution systems with electronically-coupled DERs
International Journal of Electrical Power and Energy Systems, 2020Luka Strezoski
exaly
Electrical protection relays. Information and requirements for all protection relays
2013+5 more sources