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wyszukanych pozycji: 8
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Optimum Design of Grounding System of High Voltage Substations
ISBN: 9783844314311 / Angielski / Miękka / 2011 / 188 str. Termin realizacji zamówienia: ok. 10-14 dni roboczych (Bez gwarancji dostawy przed świętami) The main purpose of this article is to study the optimum design of grounding system of high voltage substations by using artificial neural network. The proposed study will implement the following important contributions: 1-Performance of grounding system under uniform and non-uniform soil resistivity. 2-Grounding by using equal and non-equal spacing grids studying the performance of non equal spacing grid incase of uniform and non-uniform soil. 3-Grounding by grids and rods in non- uniform soil and unequally spaced grids. 4-Safety analysis of grounding grid with different structures....
The main purpose of this article is to study the optimum design of grounding system of high voltage substations by using artificial neural network. Th...
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cena:
304,88 zł |
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On-line Monitoring of High Voltage Transmission Line
ISBN: 9783659150388 / Angielski / Miękka / 2012 / 248 str. Termin realizacji zamówienia: ok. 10-14 dni roboczych (Bez gwarancji dostawy przed świętami) Pollution flashover accidents in H.V. insulators had a great assessment in power outage of transmission lines. Two new techniques using artificial neural networks are presented in this book to monitor the discharging level on the insulator surface. The techniques can be programmed to a monitor that produces an alarm signal when the discharging level reaches dangerous range and hence it can be used to predict the flashover accidents before its occurrence.The new techniques using instantaneous leakage current patterns and the meteorological effects are used to classify the discharging activity...
Pollution flashover accidents in H.V. insulators had a great assessment in power outage of transmission lines. Two new techniques using artificial neu...
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cena:
354,20 zł |
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Optimum Design of Stand Alone Photovoltaic Power System
ISBN: 9783639362152 / Angielski / Miękka / 2011 / 124 str. Termin realizacji zamówienia: ok. 10-14 dni roboczych (Bez gwarancji dostawy przed świętami) This book introduces a modular design approach with complete methodologies to evaluate the performance of stand-alone photovoltaic power system /battery storage. The optimum solar cell area and optimum tilt angle of solar cell are estimated to obtain maximum solar insolation and to avoid unwanted shading , the capacity of battery storage have been determined .The solar cell tracker has been installed by a dc motor with high torque and low speed. The output of its sensor is entered to an amplifier circuit and output of amplifier is entered to comparator to convert the signal to...
This book introduces a modular design approach with complete methodologies to evaluate the performance of stand-alone photovoltaic power system /bat...
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cena:
264,53 zł |
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Simulation of Back-Flashover Caused by Lightning
ISBN: 9783659360848 / Angielski / Miękka / 2013 / 168 str. Termin realizacji zamówienia: ok. 10-14 dni roboczych (Bez gwarancji dostawy przed świętami) Lightning strokes represent a considerable cause of short interruptions in overhead line transmission line networks. The over voltages caused by lightning cannot be avoided but their influence can be limited by appropriate overvoltage protection. Lightning is one of the main causes of problems on transmission lines; this is usually happening when a stroke hits: the phase conductor, the ground wire or directly the structure. If the first case occurs, the line may have a shielding failure. Meanwhile in the second or third cases, there may be a back flashover, which generally depends on a high...
Lightning strokes represent a considerable cause of short interruptions in overhead line transmission line networks. The over voltages caused by light...
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cena:
290,98 zł |
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Partial Discharge Testing of XLPE Underground Cables Insulation
ISBN: 9783844397994 / Angielski / Miękka / 2011 / 140 str. Termin realizacji zamówienia: ok. 10-14 dni roboczych (Bez gwarancji dostawy przed świętami) |
cena:
264,53 zł |
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Bonding of Underground Single-Core Cables and sheath losses : Bending Methods of Underground Single Core Power Cables and Factors affecting the Sheath Losses
ISBN: 9783848433940 / Angielski / Miękka / 2012 / 156 str. Termin realizacji zamówienia: ok. 10-14 dni roboczych (Bez gwarancji dostawy przed świętami) |
cena:
264,53 zł |
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Transmission Line Integrated Protection and Auto-Reclosure Scheme
ISBN: 9783847311898 / Angielski / Miękka / 288 str. Termin realizacji zamówienia: ok. 10-14 dni roboczych (Bez gwarancji dostawy przed świętami) This book presents a new transmission line protection scheme using voltage transient waveforms and fundamental voltage and current signals. The scheme integrates the high frequency transient protection algorithms with the synchronized sampling fault location algorithms to produce high speed fault detection and accurate location to the fault. The algorithms were enhanced by a new fault classification technique based on wavelet singular entropy and neural networks to classify different fault types and detect arcing activity within the faultIn order to reach better reliability and stability to...
This book presents a new transmission line protection scheme using voltage transient waveforms and fundamental voltage and current signals. The scheme...
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cena:
354,20 zł |
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Electrical Hazards on Gas Metallic Pipelines Due to Transmission Lines
ISBN: 9783845440101 / Angielski / Miękka / 148 str. Termin realizacji zamówienia: ok. 10-14 dni roboczych (Bez gwarancji dostawy przed świętami) Metallic pipelines are used to transmit the natural gas and petrolum products. Usually pipelines are constucted in the same pathway of the High Voltage Transmission Lines to save the right-way cost. AC voltage is induced on these pipelines due to the electric and magnetic fields of the overhead transmission lines. This book gives the calculations of electric and magnetic fields around the H.V.T.L and studies the hazards appear due to electromagnetic field on the workers, the damage of the pipelines coating and corrosion of the metallic pipelines construction.
Metallic pipelines are used to transmit the natural gas and petrolum products. Usually pipelines are constucted in the same pathway of the High Voltag...
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cena:
264,53 zł |
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