ELECTRICALLY SPEAKING
In my last column on the Eskom integrated power system, I explained that I worked for the State-owned power utility as the senior engineer for operations in the Eastern Cape for nearly two years. The backbone of the national grid was the 400 kV powerline system and the 220 kV powerline system. The 400 kV and 220 kV power systems fed, through transformers, into the 132 kV distribution systems. The whole power system, including distribution, was known as the interconnected power system. Each had ...
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