How much fuel does a train use per Kilometre?
The average fuel consumed per kilo- meter for all passenger and cargo trains is 7.97 L/ km. This value for local, trafficking, railway track laying and maneuvering trains is 7.92 L/km.
Why do trains have wires above them?
In our world, a catenary is a system of overhead wires used to supply electricity to a locomotive, streetcar, or light rail vehicle which is equipped with a pantograph. Overhead line equipment can be adversely affected by strong winds causing swinging wires.
Why is it called a pantograph?
It is a common type of current collector. Typically, a single or double wire is used, with the return current running through the rails. The term stems from the resemblance of some styles to the mechanical pantographs used for copying handwriting and drawings.
What are traction encumbrances called?
Ans: i) Encumbrance: It is the axial distance between catenary and contact wire. It is 1.4 m normally. ii) Stagger : It is the distance between contact wire and pantograph axis.
What does Pantagraph mean?
or pantagraph (ˈpæntəˌɡrɑːf ) 1. an instrument consisting of pivoted levers for copying drawings, maps, etc, to any desired scale. 2. a sliding type of current collector, esp a diamond-shaped frame mounted on a train roof in contact with an overhead wire.
Who uses a pantograph?
Sculpture and minting Sculptors use a three-dimensional version of the pantograph, usually a large boom connected to a fixed point at one end, bearing two rotating pointing needles at arbitrary points along this boom. By adjusting the needles different enlargement or reduction ratios can be achieved.
What are the uses of pantograph?
Pantographs are used for reducing or enlarging engineering drawings and maps and for guiding cutting tools over complex paths.
How many types of pantograph are there?
two types
How does the pantograph work?
Pantograph is an apparatus which mounted on the roof of electric train to collect power through with an overhead tension wire. It lift or down on the basis of the wire tension. Typically a single wire is used with the return current running through the track. It is a common type of current collector.