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2019 IEEE/IAS 55th Industrial and Commercial Power Systems Technical Conference (I&CPS), 2019
An unbalance current protection relay (60C, 51NC) cannot operate fast enough to avoid catastrophic failure against high system fault currents within capacitor units because traditional unbalance current protection relays are not capable of distinguishing and classifying transient fault current and switching inrush current.
Theerasak Patcharoen +1 more
openaire +2 more sources
An unbalance current protection relay (60C, 51NC) cannot operate fast enough to avoid catastrophic failure against high system fault currents within capacitor units because traditional unbalance current protection relays are not capable of distinguishing and classifying transient fault current and switching inrush current.
Theerasak Patcharoen +1 more
openaire +2 more sources
11th IET International Conference on Developments in Power Systems Protection (DPSP 2012), 2012
In a power system network, an unbalanced voltage condition can occur due to various reasons. Excessive voltage unbalance has become an issue of concern in power quality at network level, leading to numerous problems. This calls for a stringent management of unbalanced.
Vishwanatha Hiremathad
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In a power system network, an unbalanced voltage condition can occur due to various reasons. Excessive voltage unbalance has become an issue of concern in power quality at network level, leading to numerous problems. This calls for a stringent management of unbalanced.
Vishwanatha Hiremathad
openaire +2 more sources
Applying unbalance detection relays with motor loads
IEEE Transactions on Industry Applications, 1999Prolonged operation under moderate to severe unbalanced supply conditions is well known to cause undesirable heating in motors. Occasionally, users are surprised that the protective relays intended to detect voltage unbalance will fail to respond. This paper reviews the definitions, calculation methods and standards of supply unbalance and compares the
openaire +1 more source
Optimal Multi-User Scheduling for the Unbalanced Full-Duplex Buffer-Aided Relay Systems
IEEE Transactions on Wireless Communications, 2019Multi-User scheduling is challenging due to the channel unbalance problem, which leads to system performance degradation. In this paper, two optimal multi-user scheduling schemes maximizing the system throughput are proposed for the fixed and adaptive ...
Cheng Li +4 more
semanticscholar +1 more source
Determining Critical Clearing Time Based on Critical Trajectory Method using Unbalance Fault
International Seminar on Intelligent Technology and Its Applications, 2019Transient stability has an essential role in the electric power system. When a disturbance occurs, the minimum protection relay will operate in about 0.22 seconds.
A. Priyadi +4 more
semanticscholar +1 more source
2025 5th International Conference on High Voltage Engineering and Power Systems (ICHVEPS)
Voltage stability is one of the key concerns in electricity issues, especially in intensively industrialized areas with high-voltage consumers. The reliability of power systems in interconnected grids depends on maintaining voltage stability.
Andika Bagaskara +2 more
semanticscholar +1 more source
Voltage stability is one of the key concerns in electricity issues, especially in intensively industrialized areas with high-voltage consumers. The reliability of power systems in interconnected grids depends on maintaining voltage stability.
Andika Bagaskara +2 more
semanticscholar +1 more source
IEEE International Conference on Power System Technology
Conventional distance protection relays face the challenge of accurately calculating fault distances for unbalanced or non-transposed lines. The unbalance of the lines results in significant deviations during distance calculation.
Carlo Liebermann, P. Schegner
semanticscholar +1 more source
Conventional distance protection relays face the challenge of accurately calculating fault distances for unbalanced or non-transposed lines. The unbalance of the lines results in significant deviations during distance calculation.
Carlo Liebermann, P. Schegner
semanticscholar +1 more source
Safety Relay Prototype Based on Fuzzy Logic to Protect 3-Phase Induction Motor
Nanotechnology PerceptionsThis research aims to create a Prototype Relay to avoid fatal damage for induction motors due to unbalance voltage problem at electrical network, by using a microcontroller "AVR AT Mega 32" type based fuzzy logic.
Yunus Tjandi, M. Lullulangi
semanticscholar +1 more source
Electric power systems research, 2017
The phase sequence arrangements of multi-circuit overhead lines on the same tower, commonly used in extremely high voltage/ultra-high voltage (EHV/UHV) transmission lines, directly affects the symmetry of power transmission systems, which influence the ...
Cui Tang +3 more
semanticscholar +1 more source
The phase sequence arrangements of multi-circuit overhead lines on the same tower, commonly used in extremely high voltage/ultra-high voltage (EHV/UHV) transmission lines, directly affects the symmetry of power transmission systems, which influence the ...
Cui Tang +3 more
semanticscholar +1 more source
Conference for Protective Relay Engineers, 2019
This paper presents application and performance of microprocessor-based protective relay when applied to a bi-directional generator. The two-shaft gas turbine drives the generator to deliver energy to local load or to the grid.
Umar Khan +3 more
semanticscholar +1 more source
This paper presents application and performance of microprocessor-based protective relay when applied to a bi-directional generator. The two-shaft gas turbine drives the generator to deliver energy to local load or to the grid.
Umar Khan +3 more
semanticscholar +1 more source