I’m seeking help from all the teachers regarding a question. (About the Hz meter)
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I’m seeking advice from the experts here. It turns out that our company’s pump equipment is equipped with ammeters on its explosion-proof control panels; these ammeters allow us to detect faults by observing changes in current levels. For example, low current operation or overcurrent can be used to identify mechanical issues. But now, the dials on the explosion-proof control panels in the company are all Hz meters. I asked an electrician at the company, and he said that an Hz meter does not change due to equipment failures; only when the equipment is not operating stably will there be fluctuations in the readings of the Hz meter. I would like to ask the teachers here a question: is it possible to determine faults in pump equipment or other devices using a frequency meter? Thank you very much!:victory::victory::victory:
I only knew that fault locations could be identified through spectral analysis; I didn’t realize that faults could also be detected by analyzing the power supply frequency.
I only know that the load condition of a motorized device can be determined by the magnitude of the current; I’m not aware that the frequency can be used to assess the operating condition of the device. Of course, if there is an inverter available, it’s possible to identify the cause of faults.
Teacher, I’m just asking – since Hz meters are being used on site right now, I’m not sure how to determine the fault
It’s equivalent to stall protection; I’ve learned something new.
Is the motor driven by an inverter? If so, the Hz value provides a better indication of the pump’s operating condition than the current value.
Non-frequency-variable HZ doesn’t seem to make much sense, at least from a mechanical perspective
I haven’t used a frequency meter yet. . . . But if the Hz meter changes, there must be some abnormality, right?
Please explain in detail, teacher – how to use a frequency meter to determine the cause of a fault
Isn’t the MRI meter connected via the frequency converter?