Question: For the electric power transmission system shown in Fig. 21-25, what is the ratio NS / NP for (a) The step-up transformer, (b) The step-down

For the electric power transmission system shown in Fig. 21-25, what is the ratio NS / NP for
(a) The step-up transformer,
(b) The step-down transformer next to the home?

High voltage transmission line Step-down transformer Step-down (substation) transformer Power plant Step-up transformer Home 240,000 V 7200 V 240 V 12,000 V

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