Results 251 to 260 of about 231,657 (285)

Novel alpha-transform distance relaying scheme

Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering, 2002
This paper presents a simple novel distance relaying scheme based on the 3-D alpha (/spl alpha/)-hyperplane of (V/sub /spl alpha//- I/sub /spl alpha//- P/sub /spl alpha//) representing the relay location measurement at the bus. The nonlinearly transformed voltage, current and apparent power carries information about the fault location and fault ...
A.M. Sharaf, R.M. El-Sharkawy, H.E.A. Talaat, M.A.L. Badr   +3 more
openaire   +1 more source

Impact of STATCOM on distance relay

2014 International Conference on Circuits, Power and Computing Technologies [ICCPCT-2014], 2014
This paper presents simulation of distance relay with STATCOM and simulation results for investigating the operation of Distance relay in a power system containing flexible alternating current transmission (FACTS) controller such as static synchronous compensator (STATCOM). When STATCOM is connected at the midpoint and fault is after STATCOM have great
Gorakshanath B. Abande, M F A R Satarkar, Maroofa H. Rawoot, Mohan Thakre, V.S. Kale   +4 more
openaire   +1 more source

A simplified unit for distance relaying

Electrical Engineering, 1954
One method of providing an intermediate step between the performance, cost, and complexity of overcurrent and conventional 3-zone distance relays is described here. RELAY APPLICATION naturally varies widely with the practices of the various operating utilities. However, it seems to be a general trend that for low-voltage short lines, simple overcurrent
A. W. Adams, F. R. Bergseth
openaire   +1 more source

Evaluation of distance relay performance

Electrical Engineering, 1949
POWER swings which result in lin large angles between voltages at the ends of a system and faults cause distance relays to measure impedances tedious to evaluate by mathematical computation. Also the slow clearing of a fault may cause a power swing, so that there will be a combination of swing and fault conditions to analyze.
openaire   +1 more source

Combined phase and ground distance relaying

Transactions of the American Institute of Electrical Engineers, 1950
A relaying system is described herein providing complete phase and ground distance ·relaying protection for transmission lines, which features a reduction in the necessary equipment over the 6 directional-reactance-distance relay system usually applied where three relays are connected to protect against 3phase, phase-to-phase, and double-phaseto ...
openaire   +1 more source

Polyphase distance relay

Proceedings of the Institution of Electrical Engineers, 1974
M. Ramamoorty, N.M. Anil Kumar, Y.G. Paithankar, M.U. Deshpande   +3 more
openaire   +1 more source

Polyphase distance relay

Proceedings of the Institution of Electrical Engineers, 1973
Y.G. Paithankar, M.U. Deshpande
openaire   +1 more source

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

Advanced Materials, 2023
Wensheng Gao, Can Li
exaly  

Ultralow overpotential nitrate reduction to ammonia via a three-step relay mechanism

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

A new distance ground relay

Electrical Engineering, 1936
S. L. Goldsborough, R. M. Smith
openaire   +1 more source