Device and method for synchronous measurement of short-circuit current distribution in substations
A technology of synchronous measurement and current distribution, applied in the direction of measuring devices, measuring electrical variables, measuring current/voltage, etc., can solve the problems of inconsistent initial recording time, large error of results, and inability to compare waveforms, etc., to achieve convenient and reliable acquisition Effect
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[0031] like figure 1 As shown, a device for synchronous measurement of short-circuit current distribution in a substation, the device includes multiple oscilloscopes 1# oscilloscope 1, 2# oscilloscope 2, 3# oscilloscope 3, ..., N# oscilloscope N, one of which is an oscilloscope The external trigger signal of 1# oscilloscope 1 is used as the trigger source of other oscilloscopes. Other oscilloscopes 2# oscilloscope 2, 3# oscilloscope 3,..., N# oscilloscope N are connected in parallel with this one through coaxial cables. The oscilloscopes are connected to realize synchronous triggering of all multiple oscilloscopes. The oscilloscope 1# oscilloscope 1 is connected to a current transformer (not shown in the figure), and the total fault current when a short-circuit ground fault occurs is measured through the current transformer , the other oscilloscopes 2# oscilloscope 2, 3# oscilloscope 3, ..., N# oscilloscope N are all connected with current transformers (not shown in the figure...
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