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Novel motor train unit roof insulation detecting device

A roof insulation and detection device technology, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve the problems that EMUs cannot be used, the capacity is small, and the insulation status of high-voltage electrical appliances of EMUs cannot be detected, so as to reduce flash Network accidents, insulation performance drop repair effect

Inactive Publication Date: 2017-06-09
富强
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AI Technical Summary

Problems solved by technology

However, this method has the following problems: ① It cannot be used for EMUs without high-voltage voltage transformers
② Due to the small capacity of the high-voltage voltage transformer, it cannot provide a large current, which makes it impossible to detect the real insulation state of the high-voltage electrical appliances of the EMU

Method used

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  • Novel motor train unit roof insulation detecting device

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Embodiment Construction

[0015] Such as figure 1 As shown, the new EMU roof insulation detection device is composed of a processor, a control / display panel, an inverter, a voltage regulator, a current / voltage sampling module, a step-up transformer, a permanent magnet mechanism, and a vacuum interrupter. The device can be divided into a high-voltage signal generation part and a control part, the former is installed on the roof, and the latter is installed in the electrical cabinet of the car. The high-voltage signal generation part is mainly composed of a voltage regulator, a step-up transformer, a vacuum switch, a current and voltage sensor, and the like. It mainly completes the generation, control and measurement of high voltage. The control part is composed of embedded single-chip microcomputer, digital circuit, AD conversion, control software design, etc. It mainly completes human-computer interaction, signal collection, fault judgment, and on-site operation guidance. The detection device uses an...

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Abstract

A new EMU roof insulation detection device is composed of a processor, a control / display panel, an inverter, a voltage regulator, a current / voltage sampling module, a step-up transformer, a permanent magnet mechanism, and a vacuum interrupter. The device can be divided into a high-voltage signal generation part and a control part, the former is installed on the roof, and the latter is installed in the electrical cabinet of the car. The invention introduces the composition principle of the insulation detection system, the structure of main units and the characteristics of the new insulation detection system. The device has the function of automatic data storage. These data provide a scientific and accurate basis for judging the insulation performance of the device, and also provide real and reliable reference data for the insulation design of the high-voltage equipment on the roof. reference. The device has the function of repairing the insulation performance degradation of high-voltage equipment caused by pollution and smog, thereby reducing the flashover accidents caused by pollution and smog.

Description

technical field [0001] The invention relates to a detection device, in particular to a new type of insulation detection device for the roof of an EMU. Background technique [0002] After the high-speed EMU was put into operation, the car body insulation problem caused by the flashover of the roof insulator was gradually exposed; the external insulation performance of the roof insulator of the high-speed EMU has received extensive attention. When the roof insulator flashes over, it will cause catenary failure, and even burn out the contact wire and pantograph slide. The high-voltage insulation detection device on the roof of the EMU can quickly and accurately judge whether the high-voltage equipment on the roof is grounded or the insulation is lowered, so as to prevent the catenary and pantograph from being burned by blindly lifting the bow, and at the same time provide a convenient and reliable method for improving the punctual driving rate and judging the fault point on sit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/1263
Inventor 富强
Owner 富强
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