In DC traction systems, the presence of operating current and short-circuit current may cause contact voltage exceeding safety limits between the return circuit (running rail) and the ground.In this case, it is necessary to install a steel rail potential limiting device, also known as a short circuit device, between the return circuit (operating rail) and the ground to limit the potential of the operating rail and avoid the occurrence of contact voltage exceeding safety limits.

Advantages

1. Adopting high-performance DC contactors to meet the safety requirements of the European standard EN

2. Using thyristor circuit breakers for low maintenance costs

3. Compact design, high utilization of cabinet space, and easy installation 

 Features

High load and high current closing technology: meet the requirements of customers for high load application and high current closing performance and heavy load earthing system;Efficient feedback: Rapid response, maximizing personnel and facility safety;Force free operation and maintenance: The factory already has the conditions for operation, and there is no need for further debugging on site.