Basic Electrical Installation Work

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Strana 241 z 399

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400 V c. Transmission electricity the National Grid network takes place at: a. 230 V b. 230 V b. load connected the three phases star-connected three-phase four-wire supply system from the local sub-station would have a voltage of: a. . kV d. 132 kV. 400 V c. 5. kV d. Electricity distributed from the local sub-stations underground cables at: a. 400 V c. 400 V c. 230 V b. kV d. 3. Check your Understanding 1. 4. current increased c. 132 kV.When you have completed the questions, check out the answers the back of the book. 132 kV. losses are increased. Electricity transmitted very high voltages because for given power the: a. Electricity generated large commercial power stations at: a. current reduced b. 2. kV d. losses are reduced d. 230 V b. Note: more than one multiple choice answer may correct. 132 kV