Fault type judgment system and method based on transient wave recording type fault indicators
A fault indicator and fault type technology, which is applied in the detection of faults by conductor type, fault location, information technology support system, etc., can solve the problems of difficulty in judging fault types, inaccurate judgment, and difficult to meet the user's high efficiency and high precision, etc. Achieving the effect of reducing troubleshooting time
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Embodiment 1
[0032] Refer to the accompanying drawings in the manual figure 1 , Figure 10 , Figure 11 , the described system and method for judging a fault type based on a transient wave recording type fault indicator, comprising a transient state recording wave type fault indicator installed on a power line, a data acquisition communication terminal, a foreground web system and a background master station system; the fault indicator performs wave recording and fault diagnosis on the current state of the line in real time, and sends its own attribute information and related action information to the data acquisition communication terminal through radio frequency communication, and the data acquisition communication terminal then transmits the fault information through 4G communication After receiving multiple sets of fault action information of the transient wave recording fault indicator through Ethernet, the background master system obtains relevant data and performs intelligent judgm...
Embodiment 2
[0053] Such as figure 2 As shown, in the metal grounding test of No. 1 pole of 15# branch of Shanting Line, the current recording wave is as follows image 3 and Figure 4 as shown,
[0054] The poles 5# and 11# of the Shanting line are located on the fault path of the faulty line. When metallic grounding occurs, the electric field of the line will decrease instantaneously, and the current of the grounding item will increase instantaneously. In this way, when the zero-sequence current is synthesized, the zero-sequence The current will increase instantaneously, and at the same time, the zero-sequence current at the fault point will have the same mutation direction, and at the same time, it will suddenly change downwards. The transient peak value is large and the waveform height is similar. The ground fault type here is metallic grounding.
[0055] Such as Figure 5 and Figure 6 As shown, the 15 3# poles and 17# poles of the Shanting Line are located downstream of the faul...
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