RPLDECT rail potential limiting apparatus electrical apparatus characteristics tester

Abstract

The invention provides a RPLDECT rail potential limiting apparatus electrical apparatus characteristics tester which comprises a housing in which following components are connected in a successive order through lines: a power supply input control unit, a power supply isolation and regulation unit, a power supply voltage doubling, current rectifying and voltage boosting unit, a high voltage current limiting unit, a high voltage output control unit, a high voltage conduction millivolt maintaining and synchronizing unit and a millivolt output unit. The power supply input control unit is further connected to an auxiliary power supply unit. The high voltage output control unit, the high voltage conduction millivolt maintaining and synchronizing unit and the millivolt output unit are connected to a data accessing, displaying and recording unit. The millivolt output unit is further connected to a millivolt power supply generating and setting unit which acts on the millivolt. With the invention, in the construction and delivery of a steel rail potential limiting apparatus for a power grid of a rail traffic system as well as in the maintenance of the apparatus, it is possible to obtain relevant accurate electric characteristic parameters about the apparatus so as to provide effective data for the safety of concerned people around a rail transportation facility.

Description

technical field [0001] The invention relates to a tester, in particular to an electrical characteristic tester for a RPLDECT rail potential limiting device. Background technique [0002] In order to solve the contradiction between the stray stray currents in the rail transit power supply network that corrode underground metal objects and the high floating potential between stations and cars that endanger personal safety, the rail transit system has installed a rail potential limiting device in the power supply network. The setting limit voltage of the rail potential limiting device is below 200 volts, and the electrical characteristic parameters of this device can be tested on-site usually with general-purpose instruments. [0003] However, with the popularization and rapid development of rail transit, the design concept is constantly updated, and the relevant parameters of the rail potential limiting device are required to be higher and higher according to the geographical ...

AI Technical Summary

Problems solved by technology

Due to many factors such as long-distance transportation, loading and unloading, on-site installation environment, construction technology and many other factors, it is difficult to ensure the correctness of its parameters, especially in the operation and maintenance, because there is no special instrument to calibrate the electrical parameters, only visual inspection can be done, so that Hidden dangers have been laid for personal safety around rail transit facilities

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