Electrical Engineering ⇒ Topic : Systems of traction

SYSTEMS OF TRACTION

The various systems of traction commonly used are Direct steam-engine system

1. Direct internal-combustion engine system
2. Steam-electric system
3. Internal-combustion engine with electric drive
4. Battery-electric drive
5. Electric drive

System of Track Electrification

The systems of track electrification are as follows:

• Direct current. 600 V D.C. for tramways and 1500 or 3000 V D.C. for main line railways.
• Single phase A.C. system. 15/16 kV at 16 2/3 or 25 Hz. This of course varies for different countries.
• Three-phase A. C. system. A high voltage three phase system. Here two wires are generally used, the track rails are used for third phase.