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2021-08Compared with traditional cables, it shows its advantages when transporting large currents. In addition, because of the selection of new technology applications, new technology and new processes, the junctions of the two sides of the busway and the connection o…
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2021-08① The transformer should be closed for five full-voltage shocks, and no abnormal phenomena occur. The magnetizing inrush current should not cause the protection device to malfunction.②Before the transformers are arranged in parallel, the phases should be chec…
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2021-081. If △B is selected too high, the core is hot (check whether the core is hot without load).2. The △B selection is not high, the high-frequency loss of the magnetic core itself is large, and the magnetic core is hot (check whether the magnetic core is hot wit…
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2021-08The main function of the switchgear is to open and close, control and protect electrical equipment during the process of power generation, transmission, distribution and electrical energy conversion in the power system. The components in the switch cabinet are …
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2021-081. Application backgroundThe box-type substation is different from the conventional civil construction power distribution room, and its main features are:(1) The substation is designed, manufactured and installed in the manufacturing plant, and the internal ele…
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2021-08The main function of the switchgear is to open and close, control and protect electrical equipment during the process of power generation, transmission, distribution and electrical energy conversion in the power system. The components in the switch cabinet are …
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