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        The line selection device of industrial computer for small current grounding has high accuracy

        AddTime:2021-04-30 15:06:39   Views:     【 Big Mid Small 】   Print   Close

        Our company independently developed a zn09icm series embedded industrial computer small current grounding line selection device with more accurate sampling, faster operation speed, stronger grounding fault screening ability and wider adaptability to system changes. It uses high-precision zero sequence current transformer to systematically solve the problems in the process of single-phase grounding line selection in small current system and achieve better line selection effect.

        On the basis of big data and strong computing power, it adopts steady algorithm + transient algorithm, line selection learning algorithm, combined with effective region line selection technology, and uses "physical real experiment system" to verify that it can detect metal grounding, transition resistance grounding, intermittent arc grounding and other complex grounding fault types, Accurate fault diagnosis is carried out. Equipped with high-precision current transformer, it can identify the fault grounded by 8000 ohm transition resistance.

        Industrial control computer has powerful function of small current grounding line selection, including line selection function, tripping (closing) function, post acceleration tripping function, wheel cutting (leakage test) function, dual channel protection, phase judgment, Pt line breaking judgment, fault recording and fault statistical analysis

        When single-phase grounding occurs in the system, the device can make accurate judgment according to the collected signal, select the fault line, display the name (number) of grounding line and bus on the device, and automatically reset after the grounding disappears.


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