RU-825LR switchgears with line disconnector are provided for closing and opening of metro contact rail 825 V dead parts in tunnel and depot. They provide supply line 825 V switching with rated current 4000 A.
They consist of two compartments:
compartment with disconnector and power jumper;
control and disconnector drive compartment.
Overview door for visual observation of disconnector operation is on control compartment door. A small cabinet with disconnector control buttons and lighting switch is installed in the top part of the door. The cabinet is equipped with a door with locks in form of free key-handle.
There are several modifications of cabinets depending on number and location of connected power cables and bus bars at input and output.
Connection of power cables to disconnector is provided via cable clamps and special marine pressure seals. Pressure seals provide high sealing level in conditions of equipment operation in metro tunnels. Connection of power bus bar to disconnector is carried out from below through a hole in insulation panel installed on the bottom. There is a possibility of disconnector drive control in local or remote modes.
Climatic design and category of location:
for depot (outdoor installation);
for tunnels (indoor installation).