Frequent use of submersible pump users will have encountered more or less tripping, then you will get the relationship between electricity, this must be caused by a short circuit, this is also a reason. In addition to a lot The reasons for the impact of submersible pump trip, you are not stable current or submersible pump switch bad contact and so on. But sometimes we found that these reasons are not.
There is also a problem with the cable of the submersible pump. Current transformer polarity is connected correctly. After troubleshooting the cause of the equipment failure and wiring errors, the differential protection operates during motor start, indicating that the differential current in the differential circuit exceeds the differential relay setting during this process. Above can be regarded as often cause submersible pump failure reasons, we can follow a certain order, overall troubleshooting first, then troubleshooting partial.
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