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Aleksandr Kulikov, Pavel Ilyushin and Anton Loskutov
Current microprocessor-based relay protection and automation (RPA) devices supported by IEC 61850 provide access to a large amount of information on the protected or controlled electric power facility in real time. The issue of using such information (Bi...
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Aleksandr Kulikov, Pavel Ilyushin, Anton Loskutov and Sergey Filippov
The identification of fault locations (FL) on overhead power lines (OHPLs) in the shortest possible time allows for a reduction in the time to shut down OHPLs in case of damage. This helps to improve the reliability of power systems. FL devices on OHPLs ...
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Johannes Timaeus, Ties Ruigrok, Torsten Siegmeier and Maria Renate Finckh
Many agronomic studies have shown the advantages of species mixtures (SM), but for food grain production, they represent only a small niche. Empirical studies that investigate reasons for SM adoption in food grain production are scarce. Here we present a...
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Serhii Domoroshchyn,Alexandr Sakhno
Pág. 70 - 81
The approach has been developed to determining the numerical value of a failure probability and to forecasting the resource of an instrument transformer cell at the time of observation. Underlying a given approach is the control over the main parameters ...
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Pavel Mikhalichenko,Ivan Biliuk,Olexandr Kyrychenko,Victor Nadtochii,Anatoly Nadtochiy
Pág. 12 - 18
All types of relay protection are based on comparing the values for certain attributes under a system's normal and emergency operational modes. A new attribute for defining the emergency mode in a direct current traction electricity supply system has bee...
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Huiyuan Liu, Kehan Xu, Zhe Zhang, Wei Liu and Jianyong Ao
With the substantial increase in the capacity of grid-connected photovoltaic (PV) power, the adverse effects of its complex fault characteristics on grid relay protection are increasingly highlighted. Based on the introduction of the topology and the con...
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Yavuz Ates, Ali Rifat Boynuegri, Mehmet Uzunoglu, Abdullah Nadar, Recep Yumurtaci, Ozan Erdinc, Nikolaos G. Paterakis and João P. S. Catalão
The renewable energy-based distributed generation (DG) implementation in power systems has been an active research area during the last few decades due to several environmental, economic and political factors. Although the integration of DG offers many a...
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M. O. Kostin,P. Ye. Mihalichenko
Pág. 84 - 88
In the article a new indication of emergency conditions detection for the traction DC power supply system, namely the rate of decreasing the traction substation feeder voltage is suggested. The indication considered allows determining a kind of short cir...
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Yu. I. Khmarskyi
Pág. 259 - 262
A structure and principle of construction of microprocessor circuit of local railway automation is examined on relay-and-contact principle, which realize the three-level filtration of errors providing the highest protection of the systems of station auto...
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Kang, Y. C. Jin, E. S. Kang, S. H. Crossley, P. A.
Pág. 281 - 289
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