Failure current simulation device and working method thereof
A fault current and simulation device technology, applied in the field of simulation, can solve the problems of high cost, troublesome operation, long test time, etc.
Active Publication Date: 2013-01-16
AEROSPACE SCI & IND SHENZHEN GROUP
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Problems solved by technology
[0004] The present invention aims to solve the technical problems of troublesome operation, long test time, high cost, and failure to display the number of tests in the prior art for fault current simulation testing of power products, and provides a fault current simulation device that can realize fault current simulation. The device is easy to operate, and the entire test process can record the number of fault current tests
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[0062] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0063] Such as figure 1 As shown, a fault current simulation device of an embodiment of the present invention is shown, including a current generator 300, which has AC and NC terminals, and can be used to generate and output an alternating current I of a certain magnitude, as described here The AC end of the current generator refers to the sending end of the alternating current of the current generator, and the NC end refers to the inflow end of the alternating current of the current generator, which generally refers to the grounding end. The first controllable switch 1...
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The invention provides a failure current simulation device, which comprises a current generator, a first controllable switch, a second controllable switch, a third controllable switch, a test coil, a sliding rheostat, a direct current power supply, a master controller, an electronic counter, a first switch controller, a second switch controller and a third switch controller, wherein an AC end of the current generator is respectively connected with a sliding sheet of the sliding rheostat and one end of the third controllable switch; the other end of the third controllable switch is connected with one end of the test coil; the other end of the test coil is connected with an NC end of the current generator; one end of a resistance wire of the sliding rheostat is connected with one end of the first controllable switch; the other end of the resistance wire is connected with one end of the second controllable switch; the other end of the first controllable switch and the other rend of the second controllable switch are respectively connected with the NC end of the current generator; and the first switch controller, the second switch controller and the third switch controller are electrically connected with the electronic counter through the master controller and the direct current power supply respectively. The failure current simulation device is easy to operate and can comprehensively test a product to be tested.
Description
technical field [0001] The invention belongs to the field of simulation, and in particular relates to a fault current simulation device and a working method thereof. Background technique [0002] In the development process of many products, product testing is the last barrier to ensure whether the product meets the regulations. Through relevant testing methods, it can be known whether the developed product is qualified. In the development of some power products, the detection step is even more indispensable. It is necessary to confirm that the performance parameters of the power product are qualified through testing before it can be installed in the power system for work. If the unqualified power product If it is used in the power system, it will lead to a power outage, and it will cause a major power accident or even a casualty accident. [0003] At present, many power products developed by power companies are installed in the power system to monitor current fault conditio...
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IPC IPC(8): G01R31/00G01R35/00
Inventor 郭彦伟
Owner AEROSPACE SCI & IND SHENZHEN GROUP