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Novel direct current traction power supply rail electriferous monitoring device

A technology for DC traction and power supply rails, applied in the field of rail transit, can solve problems such as low reliability, inability of detection components to accurately provide live status of contact rails, and single live monitoring method, so as to improve test accuracy, reduce failure rate, Reduce the effect of process elements

Active Publication Date: 2020-01-03
ZHENJIANG DAQO SECHERON TRACTION POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the live monitoring method of the domestic power supply system is relatively single at present, and the reliability is not high. If the detection element body fails, it will not be able to accurately provide the live state of the contact rail.

Method used

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  • Novel direct current traction power supply rail electriferous monitoring device
  • Novel direct current traction power supply rail electriferous monitoring device
  • Novel direct current traction power supply rail electriferous monitoring device

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Embodiment Construction

[0019] In order to make it easier for those skilled in the art to understand and implement the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] to combine figure 1 and figure 2 , the new DC traction power supply rail live monitoring device includes a voltage monitoring unit, a monitoring unit, a redundant power supply unit, a residual voltage absorbing unit, a live state indicating unit, a display unit and a fault signal display unit. Among them: the voltage monitoring unit is connected with the contact rail and the monitoring unit, and the internal structure is as follows image 3 , including a first capacitor, a signal isolation amplifier and a second capacitor, the two ends of the input signal of the voltage monitoring unit are connected to the first capacitor, the first capacitor is connected in parallel to the isolation signal amplifier, the two are connect...

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Abstract

The invention discloses a novel direct current traction power supply rail electriferous monitoring device. The device comprises a voltage monitoring unit, a monitoring unit, a charged state indicationunit, a display unit, a residual voltage absorption unit, a redundant power supply unit and a fault signal display unit; and the voltage monitoring unit outputs two paths of signals to the monitoringunit and the charged state indication unit in a redundant manner when a contact rail is charged. According to the novel direct current traction power supply rail electriferous monitoring device provided by the invention, a charged state redundant output mode is adopted, the reliability of the voltage monitoring unit is greatly improved, the residual voltage absorption device is integrated, the residual voltage of the contact rail is actively reduced, a worker directly sets the voltage constant value through a touch screen, and operation management is facilitated.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a novel DC traction power supply rail live monitoring device. Background technique [0002] In the DC traction system, the contact rail live monitoring device is mainly used to detect the power supply status, provide electrical interlock for the switching of the power supply mode of the traction power supply system, and also provide operators with warning signals for safe operation. However, the live monitoring method of the domestic power supply system is relatively single at present, and the reliability is not high. If the detection element body fails, it will not be able to accurately provide the live state of the contact rail. If a solution can be designed that can realize redundant monitoring of the live contact rail, the failure of one of them will not affect the normal operation of the other, so that the combination of the two signals can accurately provide the live s...

Claims

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Application Information

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IPC IPC(8): G01R19/155G01R19/00
CPCG01R19/0084G01R19/155
Inventor 吴杰王彬钱小森张晓峥马晨佘军陆瑞马玲李学安张玉荣
Owner ZHENJIANG DAQO SECHERON TRACTION POWER
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