Test device for simulating instantaneous offline of pantograph of electric locomotive
A technology of electric locomotives and test devices, applied in the direction of test/monitoring control systems, instruments, control/regulation systems, etc., can solve the problems that the devices cannot be simulated
Inactive Publication Date: 2011-05-18
CHINA CNR CORPORATION
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Problems solved by technology
In this way, the device cannot simulate the off-line time of less than 100ms, and the instantaneous off-line time of the pantograph is often tens of milliseconds
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[0019] The present invention will be further described below in conjunction with the accompanying drawings. Such as figure 2 As shown, a test device for simulating the instantaneous offline pantograph of an electric locomotive includes an MT transformer 1 and a contactor, and also includes a control board 4. The contactor includes a KM1 contactor 2 and a KM2 contactor 3, and the The KM1 contactor 2 and the KM2 contactor 3 are connected in parallel to the input end of the transformer, and the control board 4 is respectively connected with the KM1 contactor 2 and the KM2 contactor 3 through control cables. The MT transformer 1 is a single-phase voltage regulator or a three-phase voltage regulator. Described control board 4 is DSP board or single-chip microcomputer.
[0020] The present invention uses the input voltage Ui to simulate the input of the electric locomotive traction transformer, the output voltage Uo to simulate the output of the traction transformer, the KM1 cont...
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The invention discloses a test device for simulating instantaneous offline of pantograph of an electric locomotive. The test device comprises an MT transformer, a contactor and a control panel, wherein the contactor comprises a KM1 contactor and a KM2 contactor; the KM1 contactor and the KM2 contactor are connected in parallel with the input end of the transformer; and the control panel is connected with the KM1 contactor and the KM2 contactor through a control cable respectively. Through the invention, any offline time can be obtained through accurate control of the control panel, for example, the time of twice instantaneous offline in an interval of 80 ms is obtained just by timing for 80 ms in the control panel; however, for a manual scheme, the hand response time is generally longer than 100 ms, and the offline time is difficult to be controlled accurately at 80 ms; by adopting two contactors, one contactor can be controlled to be open at first, and the other contactor is controlled to be closed so that the instantaneous offline time can be accurately simulated; and in practice, any offline time can be simulated.
Description
technical field [0001] The invention relates to a simulation test device for an electric locomotive, in particular to a test device for simulating the instantaneous off-line pantograph of an electric locomotive. Background technique [0002] In electrified railways, power supply is a crucial link, and the instantaneous offline pantograph is a problem that cannot be ignored. Instantaneous off-line is a very harmful phenomenon in the operation of electric locomotives, which can cause unstable operation of electric locomotives, abnormal wear of catenary and pantograph slides, radio noise interference, deterioration of locomotive rectification conditions, and in the main circuit cause overvoltage, etc. In the ground test stage of electric locomotives, it is often difficult to simulate the instantaneous off-line of the pantograph. Such as figure 1 As shown, the prior art simulates the instantaneous off-line of the electric locomotive by manually controlling the on and off of t...
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IPC IPC(8): G05B23/00
Inventor 王雪迪裘敬发
Owner CHINA CNR CORPORATION