why do all electrical transmission system work in the multiples of 11?

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why do all electrical transmission system work in the multiples of 11?

2006-07-20 22:32:17 · 2 answers · asked by vikram104 1 in Science & Mathematics ➔ Engineering

2 answers

no idea

2006-07-20 22:37:22 · answer #1 · answered by mithun 1 · 0⤊ 0⤋

Well ... they don't, actually ... or, at least, not over here in Europe.
Hydropower generators are made to produce 10kV single-phase AC and 10kV three-phase AC. Through transformers, these are converted into single-phase 15 kV (for trains), or, following another transformation, into 1 kV, later to be rectified and turned down to 500 V DC (for streetcars). Most households receive three-phase AC, 380 Volts, separated into 3x220V AC (at 60 Hz all over at least most of Europe).
Hope this may help you a bit.
Have a nice day!

2006-07-21 05:57:42 · answer #2 · answered by Axel "mahto" 4 · 0⤊ 0⤋