Switch cabinet wire connection terminal electric leakage detection system
A terminal and leakage detection technology, which is applied in the direction of measuring electricity, measuring devices, and measuring electrical variables, etc., can solve problems such as threatening the normal use of switch cabinets, shorting terminals, and affecting terminals, so as to save manpower and improve work safety. performance, accurate test results
Inactive Publication Date: 2017-02-15
ZHENJIANG DAQO SECHERON TRACTION POWER
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[0002] A switchgear is an electrical device used to control the switches of various equipment, in which there are multiple secondary side terminals, limited to the structure of the switchgear, the arrangement of the terminals is relatively dense, so once a certain terminal leaks, it is very It is easy to affect the adjacent terminals, resulting in short-circuiting of multiple terminals, which seriously threatens the normal use of the switchgear
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[0012] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0013] Such as figure 1 As shown, the present invention provides a leakage detection system for switch cabinet terminals, including n leakage detection circuits, filter circuits, judgment circuits and display circuits, wherein the n leakage detection circuits correspond to the n connection terminals in the switch cabinet respectively , collect the current signal, and send the collected current signal to the filter circuit for filtering processing, and then judge whether there is a leakage fault through the judgment circuit, and control the display circuit to display when the leakage fault occurs.
[0014] The leakage detection circuit includes a sequentially connected current transformer, a differential amplifier circuit and an absolute value circuit, wherein the current transformer is connected to the corresponding terminal, and the curren...
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The invention discloses a switch cabinet wire connection terminal electric leakage detection system comprising n electric leakage detection circuits, a wave filtering circuit, a determining circuit and a display circuit, wherein the n electric leakage detection circuits respectively correspond to n wire connection terminals in a switch cabinet, output ends of the electric leakage detection circuits are connected with an input end of the wave filtering circuit, current signals that are collected are sent into the wave filtering circuit and subjected to wave filtering operation, an output end of the wave filtering circuit is connected with the determining circuit, whether an electric leakage fault occurs can be determined via the determining circuit, and the display circuit can be controlled to display the electric leakage fault when the electric leakage fault occurs. Via the detection system, electric leakage conditions of wire connection terminals can be detected in real time, and normal operation of the switch cabinet can be ensured.
Description
technical field [0001] The invention belongs to the technical field of electrical equipment, and in particular relates to a leakage fault detection system of a switch cabinet terminal. Background technique [0002] A switchgear is an electrical device used to control the switches of various equipment, in which there are multiple secondary side terminals, limited to the structure of the switchgear, the arrangement of the terminals is relatively dense, so once a certain terminal leaks, it is very It is easy to affect the adjacent terminals, resulting in a short circuit of multiple terminals, which seriously threatens the normal use of the switchgear. Contents of the invention [0003] The purpose of the present invention is to provide a leakage detection system for the wiring terminals of the switchgear, which can detect the leakage of the wiring terminals in real time and ensure the normal operation of the switchgear. [0004] In order to achieve the above object, the solu...
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IPC IPC(8): G01R31/02
CPCG01R31/50
Inventor 钱小森朱祥连韩伟许荣军仇敏
Owner ZHENJIANG DAQO SECHERON TRACTION POWER