Designed to comply with Network Rail’s latest specification for 25kV a.c. disconnectors, earthing switches and switches, the Vacuum Interrupter has been developed to cater for the requirement for cost-effective and reliable load breaking and short-circuit making of energised overhead lines. Used in conjunction with the MLE range of fully approved disconnectors it is the first of its kind to allow safe on-load operation of an outdoor structure mounted rotating track switch, thereby maintaining electrical clearances in congested overhead conductor systems while continuing to provide clearly visible indication of isolation and minimising disruption to the network.
The Vacuum Interrupter allows track switches to operate when feeder circuit breakers are closed without the risk of damaging the disconnectors. Arc interruption is achieved by drawing the arc through a silicone moulded vacuum bottle which offers extremely high dielectric strength. The interruption of current in this way is the ideal switching technology for the application and provides an environmentally friendly, low maintenance and long-life switching solution.
Vacuum Interrupters for 25kV a.c. Track Switches (Cat. No. TS/16)