Basic Electrical Installation Work

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Strana 241 z 399

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