Firstly, electricity purchasing optimization theory and model of power Grid Company is studied.

首先，对电网公司购电优化理论和模型进行研究。

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Millions of 10kv current and voltage transformers that the company produced have been used in hundreds of 220kv, 110kv, 35kv transformer substations, switch stations and the National Electricity Grid.

公司生产的10 KV电流、电压互感器至今在数百个220 KV、110 KV、35 KV变电站、开关站、及国家电网工程中使用了上百万台。

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The study selects the different reliability samples from a domestic local grid company, collects the users' actual datas and calculates the electricity price of various reliability users.

文章以国内某地区电网公司的实际数据，选取高中低不同可靠性的样本用户，测算了各类用户适用的可靠性电价。

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The pylons in question have been designed by engineers at TenneT, the firm that runs the Netherlands' national electricity grid, in collaboration with KEMA, a Dutch research company.

ECONOMIST: Monitor

Russia's biggest company, Unified Energy Systems, which runs the country's electricity grid and which has been a battleground for communists versus reformers, has a new reform-minded board.

ECONOMIST: Breathtaking

Gerald Draper and his colleagues at the University of Oxford, and John Swanson of National Grid Transco, a power-transmission company, have looked at the distribution of childhood cancer along the power lines of the national electricity grid in England and Wales.

ECONOMIST: Power lines and cancer