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Testing device of low-voltage panel cabinet

A technology for testing devices and cabinets, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., and can solve problems such as cumbersome wiring, wrong wiring, and short circuits.

Pending Publication Date: 2022-03-11
无锡中科电气设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the existing low-voltage panel test equipment usually requires manual assistance, and the different functions of the panel switch need to be tested separately with different instruments, such as relay protection calibrator, mechanical characteristic tester, direct resistance tester, Insulation resistance tester, etc., the wiring of the test process is cumbersome and there is a risk of short circuit and wrong wiring, which affects the test efficiency and reliability

Method used

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  • Testing device of low-voltage panel cabinet
  • Testing device of low-voltage panel cabinet
  • Testing device of low-voltage panel cabinet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] figure 1 It is a schematic structural diagram of a test device for a low-voltage panel provided in Embodiment 1 of the present invention, figure 2 It is a structural block diagram of a test device for a low-voltage panel provided in Embodiment 1 of the present invention. refer to figure 1 and figure 2 , this embodiment is applicable to the case of testing the low-voltage panel. The test device for the low-voltage panel includes: a connector 10 , a wiring switching module 20 , a test circuit 30 and a controller 40 .

[0028] Wherein, the wiring switching module 10 is electrically connected with the controller 40, the test circuit 30 includes a plurality of testing modules, each testing module is electrically connected with the controller 40 and the wiring switching module 20, and the connector 10 is used to connect the wiring switching module 20 and the low-voltage panel cabinet 50 to be tested; each test module in the plurality of test modules is used to test diffe...

Embodiment 2

[0037] image 3 It is a schematic structural diagram of a control loop test module provided in Embodiment 2 of the present invention, refer to image 3 On the basis of Embodiment 1, optionally, the control loop test module 32 further includes a first switch unit 321, the test unit is electrically connected to the control loop of the low-voltage panel cabinet 50 to be tested through the first switch unit 321, and the first switch The unit 321 is also electrically connected with the controller 40; the controller 40 is also used to control the opening and closing of the low-voltage panel 50 to be tested through the first switch unit 321, so that the test unit tests the resistance of the opening and closing coil of the low-voltage panel to be tested. value.

[0038] Wherein, each test unit in the control loop test module 32 is electrically connected to the first switch unit 321 . The internal trigger J1 is electrically connected to the first switch unit 321, and the controller 4...

Embodiment 3

[0045] Figure 4 It is a schematic structural diagram of a main circuit test module provided in Embodiment 3 of the present invention, refer to Figure 4 On the basis of Embodiment 1, optionally, the main loop test module 31 includes an insulation resistance unit 311 and a second switch unit 312, the second switch unit 312 is electrically connected to the controller 40 (not shown in the figure), and the insulation The resistance unit 311 is electrically connected to the main circuit of the low-voltage panel cabinet 50 to be tested through the second switch unit 312 .

[0046] Wherein, the insulation resistance unit 311 in the main circuit test module 31 is electrically connected to the three-phase line ABC of the main circuit of the low-voltage panel cabinet 50 to be tested through the second switch unit 312, and the on-off of the second switch unit 312 is controlled by the controller 40 , realizing insulation tests at different positions of the main circuit of the low-voltag...

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PUM

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Abstract

The embodiment of the invention discloses a testing device of a low-voltage panel cabinet. The testing device comprises a plug connector, a wiring switching module, a testing circuit and a controller, wherein the wiring switching module is electrically connected with the controller, the test circuit comprises a plurality of test modules, and each test module is electrically connected with the controller and the wiring switching module; the plurality of test modules are respectively used for testing different characteristics of a to-be-tested low-voltage panel cabinet, and the controller is used for controlling the wiring switching module to switch the test modules electrically connected with the to-be-tested low-voltage panel cabinet; the plurality of test modules comprise a main loop test module and a control loop test module of a to-be-tested low-voltage panel cabinet, the control loop test module comprises a plurality of test units, each test unit is provided with two power supply output ends, and the two power supply output ends are respectively used for providing a first voltage and a second voltage. According to the technical scheme provided by the embodiment of the invention, the test efficiency and reliability can be improved.

Description

technical field [0001] The embodiment of the present invention relates to a switch testing technology, in particular to a testing device for a low-voltage panel. Background technique [0002] For switchboards, such as the low-voltage panels used in nuclear power plants, regular overhauls are required. During the overhaul process, various tests must be performed on the low-voltage panels, such as loop resistance tests and insulation tests of the low-voltage panels. When there is a fault in the panel cabinet, take corresponding measures in time. [0003] At present, the existing low-voltage panel test equipment usually requires manual assistance, and the different functions of the panel switch need to be tested separately with different instruments, such as relay protection calibrator, mechanical characteristic tester, direct resistance tester, Insulation resistance tester, etc., the wiring of the test process is cumbersome and there is a risk of short circuit and wrong wirin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 顾如清周翌嘉余剑华吴旭东陈志洪
Owner 无锡中科电气设备有限公司