SIMULATION OF EMERGENCY MODES OF POWER SUPPLY SYSTEMS OF NON-TRACTION CONSUMERS

The influence of sources of reactive power on the quality of electricity on the tires of non-traction consumers who receive power from the two-wire-rail line in the event of a short circuit in the contact network is studied. The results show that the use of sources of reactive power contributes to the maintenance of voltage on the substation tires, significantly reducing the coefficient of asymmetry in the reverse sequence.

Electronic-components less fully textile multiple resonant combiners for body-centric near field communication

Smart and e-textiles have nowadays an important increasing place in the garment industry. The rise of embedded telecommunications, especially smartphones in our pocket, enables us to provide a power source and a wireless link for smart textiles. The main issue is to develop garments able to receive power from smartphones and communicate with them without flexibility and comfort constraints bound to embedded solid-state electronic components. Consequently, this article aims to develop a fully textile NFC combiner to transfer data and power between a smartphone and sensors without any electronic components. It precisely describes textile NFC multiple combiners composed of textile NFC antennas linked by two-wire transmission lines. Also, theoretical analysis, simulations, and experiments have been conducted to adapt the resonant frequency of such structures to the NFC technology (13.56 MHz). Finally, our article generalizes textile NFC combiner resonant frequency equations for multiple combiners with any number of antennas.

The Features of Political and Religious Development of Oirats in the middle of the XIV - the middle of the XV centuries

The period starting from the second half of the XIV century. and up to the middle of the 15th century, had held under the sign of the fall of the Mongol Yuan Dynasty in China, and it was the most important one in the history of the Eastern Mongols and Oirats. Until then, the rule that only representatives of the Golden Family (that is, the descendants of Genghis Khan) were able to receive power to govern over Mongols, was, in fact, not questioned, but later the various interpretations began to appear. For example, Oirats, as non-Genghisids, had to assert their power, possessing only second roles (Taishi - the first minister). Despite the internal turmoil and the struggle with the descendants of the Yuan rulers, the Oirats did to try to create the united Mongol state headed by Taishis from the Choros Oirat clan. After a long struggle with the Eastern Mongols (who sometimes had also been led by Oirats, for example Ugechi Khashig and his son Esehu) of such Oirat leaders as Batula, Batubolo, Taiping and Toghon, the son of the latter, Esen, managed to not only to unite the Oirats in a short time, but also to create the united Mongolian state. In addition, he revived the religious and political role of the sangha, most likely the teachings of black-caped hat Karma Kagyu. This act was especially important because, besides the ideological counterweight to the right of Genghisids, one should have responded to the growth of Islamic activity in the region.

Optimasi Jaringan 4G LTE pada Area Padat Penduduk Menggunakan Antena Multisektoral

Teknologi 4G Long Term Evolution (LTE) menawarkan kecepatan akses paket data yang jauh lebih cepat dari generasi sebelumnya. Namun pada kondisi area-area padat penduduk, kecepatan akses paket data yang dirasakan oleh pengguna akan dirasakan berbeda. Hal ini juga diimbangi dengan meningkatnya pertumbuhan user, seperti di area urban dan kawasan padat penduduk, yang memiliki trafik dan payload data yang tinggi. Kondisi tersebut ternyata tidak diimbangi dengan penyediaan kapasitas jaringan yang memadai sehingga hal tersebut menyebabkan kondisi jaringan berlebihan dan menurunnya performansi jaringan di area tersebut. Untuk memperbaiki kondisi tersebut maka perlu dilakukan suatu proses optimasi, salah satunya dengan menggunakan metode swap antena. Penelitian ini bertujuan untuk mengoptimasi jaringan 4G LTE di area padat penduduk menggunakan antena multisektoral. Metode ini memiliki konsep mengganti antena sektoral single beam yang terpasang dengan antena multisektoral dual beam pada site yang dominan mencakup area tersebut. Penelitian ini mengambil lokasi di kawasan Matahari Kopo Bandung yang memiliki karakteristik padat penduduk. Hasil penelitian menunjukkan bahwa optimasi yang dilakukan dengan menggunakan metode swap antena ini dapat memperbaiki kinerja site tersebut. Hal ini ditunjukkan dengan menurunnya payload site mencapai 41% dan penurunan trafik mencapai 30,8%, serta peningkatan downlink throughput hingga 42,5%. Selain itu coverage level sinyal Reference Signal Receive Power (RSRP) mengalami peningkatan sebesar 6,93% untuk level diatas -100 dBm.

Additional electric loss in rural distribution networks 0.38 kV

The article presents calculations the additional electric loss in the case of three-phase voltage system unbalance in the real rural electrical distribution networks (0.38 kV). Measurements were carried out at substations that receive power from distribution substation “Petropavlovsk”. Measurements were carried out using a certified device “Resource-UF2M”. Also presented are graphs of changes in currents/voltages of the negative-sequence and zero-sequence, electric loss and other parameters. The results of the economic assessment of electricity losses are presented. As a result, the proposed method for reducing the power loss factor, that can reduce the losses of electricity.

Power Quality Inquiry for Grid Connected Solar Inverter

The projected paper presents the survey on load, PV based system, and grid location, affected by the presence of harmonics. Nowadays Photovoltaic (PV) energy has been extensively attentive since it’s fresh and infinite energy without creating pollution. An inverter is required to produce electrical energy from solar. One of the reason for unstable power system is an inverter which is a switching device. It is functioned to regulate the frequency of an AC power as per requirement. On the other hand, it leads to distortion of waveforms produced by the introduction of that upset electronic devices which are employed to receive power. At that moment, it could create the incorrect functioning of electronic devices. The outcomes demonstrations that maximum grid’s harmonics are influenced by the photovoltaic system and the load when the inverter is powered up to the rated value, for the meantime, harmonics present in the load be governed by on the category of load and the fractions of harmonics are compact. Analyzing, the effect of harmonics for three edges, we got to know that harmonics of photovoltaic based system barely have an consequence on load while the harmonics of grid are more exaggerated from load as compared to the PV system

Religion and state in Erdogan's mind

If there are events that confirm Samuel Huntington's argument about the clash of civilizations and Bernard Lewis's thesis on Islam, such as the establishment of the Islamic state in Iran, and the events of September 11, what all these people condone is that Islamist movements are not always an extension of fundamentalism In countries such as Turkey and Indonesia, social movements helped bring in democracy, after decades of authoritarian rule by secularist regimes backed by the army. Religious groups in these countries have participated in the transition to democracy. In Turkey, Islamist groups have fought the vessels in order to strengthen democracy, and in order to participate in the achievement of freedom of opinion and expression and the promotion of religious and human rights, and this is what he did Erdogan and his colleagues since they receive power in Turkey

PENGARUH INOVASI ANTENA PADA SIARAN TELEVISI MOBIL

The best or optimation of mobile television broadcast will be got some ways, one of this is the antenna’s control of mobile’s te;evision. The additionals require a fairly thorough calculation with look teposition and the distance fron the transmitter. Amplifier of the antenna is called the booster. That is needed voltage enlarge, the input voltage is 12 volt. In this research use the eksternal booster. Transmit power and receive power od antenna inversely proportional distance. With use antenna and booster DXXN 1508 strengening booster is 40-46 x. If in this calculate we use 45 x , input voltage 12 V, the output voltage will be very lage.