List any four weaknesses of LIM propelled railway traction system.

List any four weaknesses of LIM propelled railway traction system.
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Answer :

Weaknesses of LIM Propelled Railway Traction System: 1. The system requires looping of all reaction rails all along the route. This considerably adds to the cost of track. 2. Since Al is relative expensive material, hence chances of theft of more, hence disruption of service 3. Due to more air gap in LIM than IM, power factor is poor and increased motor losses. 4. Due to discontinuity in the magnetic and electric circuits at entry and exit ends of motor, poor motor efficiency.

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