Figure A6: Cross Section of Up
Line/ Down Line Double Track
Elevated Guide way with 33
kV AC Power Supply and 750
V DC Power Rail (4TH Rail) for
Kelana Jaya Line LRT System
(Linear Induction Motor
Propulsion by Bombardier Inc)
Kelana Jaya Line LRT
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Linear Induction Motor (LIM) Traction
System (proprietary technology by
Bombardier Inc.)
Four-Rail System
- 2 running rails
- 2 power rails (± 375 VDC)
Minimal stray current problem (Since
running rail carry no return current)
Relatively simple motor with only
moving parts being cooling fans (low
maintenance)
Free rolling axle wheel sets without
gearboxes (low maintenance)
Reduce vertical height
Poorer energy consumption compared to
rotary traction system because of air gap
of LIM reaction rail.
Automated Operation due to LIM’