Protecting device convenient to mount aiming at rail electric potential and method thereof

Abstract

The invention discloses a protecting device convenient to mount aiming at rail electric potential and a method thereof. The protecting device comprises a programmable controller and a voltage detecting module; the voltage detecting module for detecting voltage between steel rails and an protected area is in communicating connection with the programmable controller; the programmable controller is arranged in a cuboid hollow controlling cabinet, and a cover plate is welded to an opening of the controlling cabinet through a hinge; more than two opening structures are formed in the ring side wall of a second nesting part, an iron material protrusion is integrally connected to the upper portion of the outer wall of a shell of the programmable controller and is located outside a supporting platform, and a rubber piece is glued to the lower portion of the outer wall of the shell of the programmable controller through glue; and a controlling cabinet which can exchange air and lower temperature and avoid influence of particulate impurities is achieved, and the defect that the fixed connecting mode is often poor in firmness is avoided.

Description

technical field [0001] The invention relates to the technical field of traffic rail potential, in particular to a conveniently installed protection device for rail potential and a method thereof. Background technique [0002] The traction power supply system of urban rail transit adopts overhead catenary power supply, and the running rail is used as the return path. In order to reduce the corrosion of stray currents on civil structural steel bars, steel rails, equipment metal casings and other underground metal pipelines, relatively complete stray current protection measures have been adopted during the construction of rail transit. That is: the DC traction power supply system is designed as an ungrounded system, and the DC power supply equipment is installed in isolation, and the rail is insulated from the ground through an insulating pad to reduce the leakage of stray current. When there is a starting or running train in the power supply section, or a system short-circuit...

AI Technical Summary

Problems solved by technology

[0018] In order to solve the above problems, the present invention provides a conveniently installed protection device for rail potential and its method, which realizes a control cabinet that can realize ventilation and cooling and avoid the influence of particulate matter impurities, and avoids simple structure, Defects of unstable connection and insufficient reliability of the fixed connection method

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