Rigid catenary system , with which regard to safety, reliability, current carrying capacity, short circuit resistance and minimum construction height, demand innovative solutions, is a new power supply mode of electrification railway, it used in mass transit especially
1. More capability of current carrying, With large cross section current bar profile clamping contact wire, current bar profile and contact wire clamped in the draw-back collet current bar profile can permit high level current passing. Furthermore it can effectively reduce the radiation problem which caused by high levels current.
2. No risk of breaking-off, more security, As there is no traction stress, it allows more contact wire wear without risk of breaking-off in rigid catenary system, the only limitation is that the pantograph can not touch the current bar profile.
3. Easy operation and maintenance, As the contact wire allows more wear and its installation and replacing is easy in rigid catenary system, the maintenance cost is greatly reduced. Periodical control of the current bar profile connectors tightening and cleaning up of the isolators are the only maintenance operations to be carried out..
4. Less tunnel clearance, less construction cost, Rigid catenary system reduces great tunnel clearance against standard catenary system, so the construction cost is greatly reduced.
Keywords:
Railway Traction Equipment,railway electric, traction device, railway transportation