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Inverter mutual-standby function tester

A test device and inverter technology, which is applied in the field of inverter mutual backup function test device, can solve the problems of damage to the handle of the fuse holder and the danger of electric shock, and achieve the effects of preventing burnout, low cost and convenient installation.

Active Publication Date: 2016-03-09
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of breaking the fuse suddenly, it is easy to cause damage to the handle part of the fuse holder, and this test is carried out during the live process, if the operation is improper, there will be a risk of electric shock

Method used

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  • Inverter mutual-standby function tester

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Experimental program
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Embodiment

[0023] Such as figure 1 As shown, an inverter mutual backup function test device of the present invention includes a DC power supply cabinet 1, a DC600V incoming line diode 2, a DC110V incoming line diode 3, an inverter box terminal block 4, a DC600V control switch 5, and a DC110V control switch Switch 6, inverter 1 DC600V indicator 7, inverter 2 DC600V indicator 8, inverter 1 DC110V indicator 9, inverter 2 DC110V indicator 10, inverter 1 input terminal 11, inverter Two input terminals 12 .

[0024] The DC power supply cabinet 1 is an integrated design, and all core components are placed inside the cabinet. The power cabinet has one DC600V output and one DC110V output, and the two DC outputs are respectively controlled by DC contactors. There is a three-digit display instrument on the surface of the cabinet for current and voltage display; the two-way DC output control circuit breaker can control the output of DC600V or DC110V power supply respectively according to the actua...

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Abstract

An inverter mutual-standby function tester comprises a DC power cabinet, a DC600V inlet diode, a DC110V inlet diode, an inverter box terminal row, a DC600V control switch, a DC110V control switch, a DC600V indicating lamp of a first inverter, a DC600V indicating lamp of a second inverter, a DC110V indicating lamp of the first inverter, a DC110V indicating lamp of the second inverter, the input end of the first inverter and the input end of the second inverter. DC600V and DC110V required by work of each inverter are switched ON / OFF independently, and the indicating lamps are used to visually display main power supplies of the inverters and the controlled electrification state; and during mutual-standby test, and the DC600V at the input end of the first inverter is disconnected to simulate fault of the first inverter easily. The tester is safe and reliable, and the risk that a fuse seat is damaged when an internal fuse is disconnected can be reduced.

Description

technical field [0001] The invention relates to the technical field of rail passenger car power supply devices, in particular to an inverter mutual backup function test device. Background technique [0002] The 25T / G rail car inverter is integrated in the box and hung under the car body. The input control power is DC110V, and the main power supply is DC600V, which mainly supplies power for the air conditioner and three-phase load on the car. Generally, there are two inverters in the box. Under normal conditions, only one works, and the other will switch to work when a fault occurs, which is the so-called mutual backup power supply function. Before leaving the factory, this function must be tested to prevent the failure to achieve mutual backup when the online operation fails. Since the control power and the main power input by the two inverter modules come from the box terminal block, they are switched on and off at the same time. Therefore, when testing the mutual backup f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/40
CPCG01R31/40
Inventor 王莉万玉山
Owner CHANGZHOU UNIV