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1
Study of Short-Circuit Currents Around Dĕtmarovice Power Station

Ali, Shehab Abdulwadood The Korean Institute of Electrical and Electronic 2014 Transactions on Electrical and Electronic Material Vol.15 No.3
- 원문보기
The calculation of short-circuit currents is important for power systems operation and restoration, and for determining the means to protect human lives and properties. In this paper, a part of a power system network, around the D$\breve{e}$tmarovice power station in Czech Republic, was simulated by the well known program EMTP-ATPDraw (Electromagnetic Transients Program-Alternative Transient Program), and short-circuit currents and voltages were calculated at different points in the electric network and presented as a time function by the PlotXY program. Calculations were done just for phase-to-ground, and for the three-phase short-circuit at the Kun$\check{c}$ice substation. The results were important for determining the characteristics of the equipment required to withstand or break the short-circuit current; for this reason, the calculations were repeated using earth-fault resistances only for the case of busbar KUN shown in Figs. 5 and 6.
2
Modeling of Power Networks by ATP-Draw for Harmonics Propagation Study

Ali, Shehab Abdulwadood The Korean Institute of Electrical and Electronic 2013 Transactions on Electrical and Electronic Material Vol.14 No.6
- 원문보기
This paper illustrates the possibilities of using the program ATP-Draw (Alternative Transient Program) for the modeling of power networks to study power quality problems with highly detailed analyses. The Program ATP-Draw is one of the most widespread and oldest programs. A unique characteristic of this program is its public domain and the existence of forums and study committees where new application cases and modification are presented and shared publicly. In this paper, to study the propagation of harmonics through a power network, a part of an industrial power network was modeled. The network contains different types of electric components, such as transformers, transmission lines, cables and loads, and there is a source of harmonics that injects $3^{rd}$, $5^{th}$, $7^{th}$, $9^{th}$ and $11^{th}$ harmonic currents into the network, causing a distortion of the wave form of the currents and voltages through the power network.
3
Modeling of Power Networks by ATP-Draw for Harmonics Propagation Study

Shehab Abdulwadood Ali 한국전기전자재료학회 2013 Transactions on Electrical and Electronic Material Vol.14 No.6
This paper illustrates the possibilities of using the program ATP-Draw (Alternative Transient Program) for the modeling of power networks to study power quality problems with highly detailed analyses. The Program ATP-Draw is one of the most widespread and oldest programs. A unique characteristic of this program is its public domain and the existence of forums and study committees where new application cases and modification are presented and shared publicly. In this paper, to study the propagation of harmonics through a power network, a part of an industrial power network was modeled. The network contains different types of electric components, such as transformers,transmission lines, cables and loads, and there is a source of harmonics that injects 3rd, 5th, 7th, 9th and 11th harmonic currents into the network, causing a distortion of the wave form of the currents and voltages through the power network.
4
Study of Short-Circuit Currents Around Dĕtmarovice Power Station

Shehab Abdulwadood Ali 한국전기전자재료학회 2014 Transactions on Electrical and Electronic Material Vol.15 No.3
The calculation of short-circuit currents is important for power systems operation and restoration, and fordetermining the means to protect human lives and properties. In this paper, a part of a power system network,around the Dĕtmarovice power station in Czech Republic, was simulated by the well known program EMTP-ATPDraw(Electromagnetic Transients Program-Alternative Transient Program), and short-circuit currents and voltageswere calculated at different points in the electric network and presented as a time function by the PlotXY program. Calculations were done just for phase-to-ground, and for the three-phase short-circuit at the Kunčice substation. Theresults were important for determining the characteristics of the equipment required to withstand or break the shortcircuitcurrent; for this reason, the calculations were repeated using earth-fault resistances only for the case of busbarKUN shown in Figs. 5 and 6.

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