What is a switch-disconnector?

A switch-disconnector is an electromechanical device able to interrupt or establish low-intensity currents at the moment they are driven, and, under normal operating conditions, in the closed position, to withstand high-amplitude currents, such as those of short circuits.

Projetados e desenvolvidos em conformidade com a norma NBR IEC 62.271-102, possuem a função de garantir a isolação de equipamentos ou trechos de linhas de subestações, quando na posição aberta, permite confirmar visualmente que o trecho isolado encontra-se desenergizado.

 

WEG Advantages

  • Line of 100% national switch-disconnectors;
  • Constant innovations in components, processes and products;
  • Special service focused on the specific needs of each customer;
  • Verticalization of processes, allowing broad quality control of the different production phases, as well as flexibility of lead times;
  • Wide network of accredit Technical Assistants, ensuring fast, local technical service and support to WEG's customers. 

Opening types 

  • Hook stick switch: Used in distribution substations. Switched by stick;
  • Tandem hook stick switch: Used in distribution substations. Switched by stick;
  • Center break disconnector: Used in industrial substations due to their simpler construction;
  • Vertical break disconnector: Used mainly in transmission substations due to their excellent endurance to short circuit;
  • Vertical reach disconnector: Used in substation inputs/outputs, connection of upper x lower busbars and bypasses;
     
  • Double side break disconnector: Excellent endurance to short circuit, with smooth operation, since they do not require compensation springs;
  • Horizontal semi-pantograph disconnector: Used mainly in transmission substations due to their excellent endurance to short circuit. Because of its compact size, it can be used in areas with little space;
  • Vertical semi-pantograph disconnector: Used in substation inputs/outputs, connection of upper x lower busbars and bypass.
     

 

Applications

  • Power distribution substations operated by stick switch;
  • Industrial substations;
  • Generation and transmission substations;


Special applications (laboratories, automatic systems for equipment monitoring, etc.).