Track circuit of railway signal system is with fixed varistor ware of taking a percentage

The utility model discloses a track circuit of railway signal system is with fixed varistor ware of taking a percentage, including the coil, the top of coil install copper wiring mouthful, connection cable is installed to the top of copper wiring mouth, the last PLC controller of installing of connection cable, first connector lug is installed to the top of first backing plate, the top at the fixed cover of opposite side is installed to the second backing plate, the second connector lug is installed to the top of second backing plate. The utility model discloses a fixed varistor ware of taking a percentage, install two fixed taking a percentage on this varistor ware, and take a percentage and pass through connection cable with the coil and is connected, reduced through this kind of design and fixed the installation of taking a percentage to has saved the cost, and installed the PLC controller on connection cable, through its can the control connection coil length, thereby the size of controlling resistance ha