Frequency converter intelligent black box with electric pump abnormity diagnosis function

A frequency converter intelligent black box with an electric pump abnormity diagnosis function is characterized in that an electric submersible pump unit is connected with a frequency converter through a power cable, a control unit PLC and a frequency converter black box are arranged in the frequency converter, and the control unit PLC is connected with the frequency converter black box for data communication; and the high-speed current signal detection Hall current sensor is connected with the frequency converter black box. The frequency converter black box comprises an AD sampler and an embedded computer, and the AD sampler and the embedded computer record data of the high-speed current signal detection Hall current sensor. The method has the beneficial effects that the abnormal data of the on-site frequency converter can be intelligently analyzed, the on-site operation personnel can be assisted to analyze the abnormal parameters of the unit, and a suggestive guidance decision can be provided; the problem t