Searched for: subject%3A%22ATP%255C-EMTP%22
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document
Medeiros, R.P. (author), Costa, F.B. (author), Silva, K.M. (author), de Jesus Chavez, Jose (author), Popov, M. (author), Lima Junior, J.R. (author)
Phasor-based differential protection is widely used as the main protection function of the power transformer due to its reliability and ability to discriminate internal from external faults and inrush currents. However, these methods present some delays due to phasor convergence during the fault occurrence and can fail during challenging...
journal article 2022
document
KOUROS, Michail (author)
To ensure a safe power system which operates correctly, a proper grounding system is necessary to provide connections to the ground at specific points. A grounding system is generally designed: (1) to reduce voltages occurring in the grounding system for short circuit situations (at power frequency) to an acceptable level in terms of step and...
master thesis 2020
document
Wu, Wenbin (author)
Industries such as chemical companies need a continuous power supply and the fast transfer relay Siemens 7uv68 is designed to transfer frompresent feederwhich encounters a fault to an auxiliary feeder and minimizes the transient torque of the induction motors during transfer. The relay will be installed in a DOW power plant in South Tarragona,...
master thesis 2018
document
Agbemuko, Adedotun (author), van Meurs, Johannes (author), van Driel, W.D. (author)
This chapter gives an extensive overview into the nature of the environment that luminaires and thus LEDs are subjected to during the event of a lightning stroke. Direct lightning stroke almost always results in instant damage for low-voltage connected devices, except in “extraordinary circumstances” where random components may survive. This is...
book chapter 2018
document
Dedi Mahendra, Dedi (author)
As the primary protection of high voltage (HV) and Extra high voltage (EHV) transmission networks, distance protection needs to operate properly under all possible fault conditions. It needs to operate as fast as possible for internal fault, while it also must be able to discriminate between the internal and the external faults to prevent...
master thesis 2017
document
Saraswathi, A.T. (author)
Protection in electrical power system plays an important role in human and material safety during abnormal operating conditions. The heart of electrical protection system is the relay which senses abnormalities and commands the switches to break the circuit during a fault. Hence, optimization of protection parameters has gained paramount...
master thesis 2016
document
Hakim, A.R. (author)
The thesis deals with the modeling and simulation of distance relays in ATP - EMTP. Transmission line which is 125.6 miles long operates at 60 Hz and 115 kV line voltages are simulated in ATP - EMTP. The first part of the thesis discusses the implementation and simulation of the ATP - EMTP model for microprocessor based mho distance relay using...
master thesis 2015
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Xue, H. (author), Popov, M. (author)
Large transient overvoltages are normally caused by vacuum circuit breaker (VCB) switching operation during disconnection of induction motors. In this paper VCBs, cables, generators, busbars, induction motors and surge arresters are modeled by making use of ATP-EMTP. Switching transient overvoltages of four typical induction motors are analyzed...
conference paper 2013
document
Xue, H. (author)
Large transient overvoltages can be caused by the switching operation of vacuum circuit breakers of induction motors. In order to analyze the switching transient overvoltage and use an appropriate protective method in the power system of floating production storage and offloading (FPSO) vessel, the accurate models of electrical equipments are...
master thesis 2012
document
Dakhlan, D.F. (author)
The thesis describes the modeling of the internal faults in three-phase three-winding power transformer related to the differential relay protection behavior due to those faults. This transformer model is based on the mutually coupled [RL] matrix and entirely compatible with ATP/EMTP software. The model uses the real power transformer and the...
master thesis 2009
Searched for: subject%3A%22ATP%255C-EMTP%22
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