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The rapid development of mobile telecommunication industry has brought great convenience to people's lives, and even progressively have changed our way of life. With the continuous improvement regarding coverage area, internet speed etc. of requirements, there are more and more mobile base stations, and the issue concerning the electromagnetic radiation of mobile base station is also of very high...
There are three different structures between process level and bay level in digital substations below 35kV nowadays; they are IEC61850-9-1 standard, IEC61850-9-2 standard and small analog signal transmission standard. Accounting for the features of three kinds of structures and special requirements of non-effectively grounded system fault line detection device, the design of line detection device...
Through-casing resistivity (TCR) measurement instruments such as Cased Hole Formation Resistivity are extensively used for the dynamic monitoring of oil reservoirs during the production phase in oil wells to evaluate the residual oil distribution. However, two shortcomings still exist in the common TCR model based on single-injection electrodes: The real value of steel-casing resistance is difficult...
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