One question regarding all pump current issues
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In production, there are many pumps; some of them have current displays while others only have control levers. The question is: shouldn’t all pumps have current displays? If not, what is the reason for that, and what is the basis for it? Thank you
It is generally set based on the size of the motor and its importance； There is no ammeter; if you want to know, it can be measured using a clamp ammeter (a portable tool).
Generally, there is an electric current display in the control room.
This should have been determined during the initial design, right! Any type of pump can be manufactured to meet production needs!
Some on-site units have current display functions, and it is also possible to transmit data to the DCS system.
Which DCS can display current values? Can I take a screenshot to check it?
You can view all of them, but you need to set it up
Are there such actual application cases? I also know that they can all be watched. I hope relevant practical application cases can be provided. Also, is there anyone using DCS to monitor the current of the pumps? I hope everyone can provide materials. Maybe it’s because I haven’t seen much of it, but I still suggest that people shouldn’t casually mention various parameters. If the pump is integrated into the DCS system, is it monitored? Set high and low alarms? How to set it? Operators should not assume whether they need to pay attention to this parameter.
There must be many such cases. In my current installation, the more important pumps and compressors are equipped with both on-site current measurements and remote transmitted current data. The DSC also shows information such as the temperature of the bearings and bearing shells, as well as the temperature of the motor windings. For compressors, additional parameters such as vibration, displacement, and rotational speed are also available. Everyone who enters the DCS needs to be monitored; otherwise, why come in? We don’t have alarms or interlocks for the motor current of the pump, but there are alarms for the bearing temperature, medium temperature, and pressure of the pump