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外文翻译--线损管理VIP免费

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外文原文Line Loss ManagementLoss calculation is the first Energy to strengthen the line loss management of the technology an important management tool. Through theoretical calculations can be found in the energy loss distribution in the grid, can be revealed through the analysis of management and technical problems, loss of down work based on the theory and technology, enabling lower loss focused work to improve the energy efficiency of Loss effectiveness, so that line loss management more scientific. Therefore, the transformation in the construction of power grids, as well as the normal management process to keep the theoretical calculation of line losses to. Line Loss calculation is cumbersome and complex process, in particular low-voltage distribution lines and branch lines as a result of multi-line, load a large amount of data and more complicated, the work is more difficult. Line Loss Calculation Method of many different characteristics, different accuracy. Here is relatively simple calculation, the accuracy of the method is relatively high. Calculation of theoretical line loss of the concept of 1. Transmission line loss When the load current through the circuit when the resistance in the circuit will have a power loss. (1) single-line formula for active power loss △P=2I RWhere △ P - loss of power, W; I - Load Current, A; R - wire resistance, Ω (2) three-phase active power line loss line 23ABCPPPPI R(3) Effect of temperature on the impact of wire resistance: Wire resistance R is not constant, the frequency of the power under certain circumstances, the wire resistance with temperature changes. Copper wire resistance temperature coefficient of a = 0.004. In the technical manual is given at 2...

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外文翻译--线损管理

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