gui chao cable news: what is the bus?
from：guichao author：admin click： 439 addtime：2017-04-17 17:13:17
connection of voltage distribution devices in substations,
as well as the transformer and other electrical equipment and the corresponding distribution device connection,
most of them are rectangular or circular cross section bare wires or strands,
this is called bus. the bus is used to collect, distribute and transmit electrical energy.
because the bus is in operation, there is a huge power through the short circuit,
it has a lot of heat and electrical effects,
reasonable choice of bus materials,
sectional shape and sectional area to meet the requirements of safe and economic operation.
according to the structure of the bus bar is divided into hard and soft bus.
the hard bus is divided into rectangular bus and tubular bus.
rectangular busbar is generally used in the main transformer to the distribution room,
the utility model has the advantages of convenient installation and construction and small change in operation,
carrying capacity is large, but the cost is higher.
soft bus is used outdoors, because of large space,
the conductor does not swing caused by insufficient distance between lines.
soft bus construction is simple, low cost.
conic section,
a bus is a line connecting the vertices of a cone and any point on the circumference of the bottom.