X. Выберите правильный перевод

1) …single phase AC current is used as traction current for railway traction.

a) …однофазный переменный ток используется так, как тяговый ток для железнодорожной тяги.

b) …однофазный переменный ток используется в качестве тягового тока для железнодорожной тяги.

c) …однофазовый переменный ток используется как тяговый ток для железнодорожной тяги.

2) This is distinct from electricity which...

a) Это отделено от распределения электричества, которое…

b) Это отличается от распределения электричества, которое…

c) Это отделяет от распределения электричества, которое…

3)...power can be routed from any power plant to any load centre...

a)... энергия может быть проложена от электростанции до любого узла нагрузки… b) …энергия может быть распределена от любой электростанции до узла нагрузки…

c) …энергия может быть направлена от любой электростанции до любого узла нагрузки...

XI. Выполните перевод всего текста.

ELECTRIC POWER TRANSMISSION

Electric power transmission is one process in the delivery of electricity to consumers. It refers to the 'bulk' transfer of electrical power from place to place. Typically power transmission is between the power plant and a substation in the vicinity of a populated area. This is distinct from electricity distribution which is concerned with the delivery from the substation to the consumers. Due to the large amount of power involved, transmission normally takes place at high voltage (110 kV or above). Electricity is usually sent over long distance through overhead power transmission lines. Power is transmitted underground in densely populated areas (such as large cities) but is typically avoided due to the high capacitive and resistive losses incurred.

A power transmission system is sometimes referred to colloquially as a "grid". However, for reasons of economy, the network is rarely a grid (a fully connected network) in the mathematical sense. Redundant paths and lines are provided so that power can be routed from any power plant to any load center, through a variety of routes, based on the economics of the transmission path and the cost of power. Much analysis is done by transmission companies to determine the maximum reliable capacity of each line, which, due to system stability considerations, may be less than the physical limit of the line. Deregulation of electricity companies in many countries has lead to renewed interest in reliable economic design of transmission networks. The separation of transmission and generation functions is one of the factors that contributed to the 2003 North America blackout.