TE Launches New VESA Vacuum Circuit Breaker, A Milestone in the Development of an All-Electrically Operated Train
TE Connectivity has developed an enhanced generation of electrical circuit breakers for trains which eliminate the disadvantages associated with conventional mechanical, pneumatic circuit breakers.
• Reliability: the VESA VCB system needs less servicing than conventional pneumatic systems.
• Space & weight savings: the VESA VCB requires a smaller sized air supply and a compressor for the pantograph actuation. There is no further need for pneumatic plumbing. In addition, the VCB is amongst the lightest in its class and is less than half the weight of some pneumatic products on the market.
• Energy savings: the system has low electric power consumption for reduced power demand on the train's low-voltage system. In addition it offers traction energy savings from the significant overall weight reduction combined with reduced aerodynamic drag.
• Backwards compatibility: the system can be retrofitted as part of refurbishments, refits or major maintenance cycles.
• Customization: the VESA VCB can be customised in several ways. The choices include earthing arms, various operating voltage options, integration of additional control relays and feedback switches.
• Cost-saving potential: TE estimates a savings potential of 120 maintenance hours per installed unit - thanks to self-cleaning insulators and a reduced reliance on pneumatic systems.
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