Lossless detection method of dynamic fault of large power main contactor
A main contactor and non-destructive testing technology, applied in the field of testing, can solve problems such as inability to detect, dynamic faults and position accuracy cannot be detected, and products cannot work normally, so as to achieve non-destructive testing, ensure reliability, reduce The effect of cost of quality
Inactive Publication Date: 2016-04-13
云南昆船机械制造有限公司
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AI Technical Summary
Problems solved by technology
In order to prevent interference, the contacts of this part are encapsulated in a product sealing cover with a metal shielding layer. After disassembling the sealing cover, the product will not work normally; in the working state, since the working voltage of this part is DC 400V, the working The current is up to DC 1000A, which cannot be detected by using a general-purpose instrument; only in the non-working state, the use of a multimeter can only detect the on-off of each contact; the action of the contact in the cavity, dynamic faults and The accuracy of the location cannot be checked
Method used
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Experimental program
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Embodiment Construction
[0012] A non-destructive detection method for a dynamic failure of a high-power main contactor, the invention is characterized in that it includes a detection system and a detection method; wherein the detection system consists of a computer control system, a computer image acquisition system, a computer analysis system, an X-ray system and a voltage regulator Power composition;
[0013] The detection method steps are:
[0014] 1) Install the contactor to be tested horizontally on the detection table of the X-ray system, connect the positive terminal of the starting coil of the contactor with the positive terminal of the regulated power supply with one wire, and connect the contactor with the other wire. The negative terminal of the starting coil is connected to the negative terminal of the regulated power supply;
[0015] 2) Align the X-ray probe of the X-ray system with the contactor horizontally. In the non-working state, turn on the power of the X-ray system, turn on the ...
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A lossless detection method of a dynamic fault of a large power main contactor comprises a detection system and a detection method, wherein the detection system comprises a computer control system, a computer image collecting system, a computer analysis system, an X ray system and a voltage stabilizing power source. The detection method has the beneficial effects that the loss detection of the main contactor is realized by using characteristics of X ray that the X ray can penetrate a closed object and can performing real time imaging on an internal structure and motion state of the object; the main contactor with defects is effectively removed, thus ensuring product reliability, reducing product quality cost and a product fault rate caused by the fault of the main contactor.
Description
technical field [0001] The invention belongs to the technical field of detection, and in particular relates to a nondestructive detection method for dynamic faults of a high-power main contactor. Background technique [0002] The function of the main contactor is to input electric energy into the propulsion parts of the product through the suction of the contacts, so as to ensure the movement energy of the product. In order to prevent interference, the contacts of this part are encapsulated in a product sealing cover with a metal shielding layer. After disassembling the sealing cover, the product will not work normally; in the working state, since the working voltage of this part is DC 400V, the working The current is up to DC 1000A, which cannot be detected by using a general-purpose instrument; only in the non-working state, the use of a multimeter can only detect the on-off of each contact; the action of the contact in the cavity, dynamic faults and The accuracy of the l...
Claims
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Login to View More IPC IPC(8): G01N23/18
CPCG01N23/18
Inventor 窦国强赵一钢舒云刚侯跃高爽
Owner 云南昆船机械制造有限公司