Basic Electrical Installation Work

| Kategorie: Kniha  |

Strana 241 z 399

Jak získat tento dokument?






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