Problem of pump reversal in the oil pump of the screw compressor oil station
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Due to a fault in one of the units, there was voltage fluctuation in the line; as a result, the backup oil pump at the compressor oil station started automatically, with the control switch set to automatic mode. The pump that was operating previously stopped, and its control switch is set to manual mode. What should be done now? If there’s a power fluctuation, get out of the car.
If the main oil pump is set to manual and the auxiliary oil pump to automatic. Once the voltage is stable and the unit is operating normally, manually switch to the main oil pump. The auxiliary oil pump is in automatic standby mode.
It’s possible to set everything to automatic mode, so they can back each other up
Check the instrument control logic diagram; it should be possible to make the automatically started pump the main oil pump, and the one that stops due to power fluctuations the backup pump.
You can set the pump that is currently running to manual mode, and the stopped pump to automatic mode
Ask your supervisor or engineer; this isn’t something you can just say arbitrarily without knowing the process!
It’s possible to set everything to automatic mode, so they can back each other up
It’s possible to set everything to automatic mode, so they can back each other up
Set the operation column of the pump that was just running to automatic mode, and then activate the SIS interlock
Are both your primary and backup oil pumps connected to the same power supply line? If so, then turning off the backup pump is useless. In this case, it’s completely possible to install anti-vibration equipment on the pump’s contactor; this will prevent it from tripping during vibrations. Since the vibrations last only for a short time, there’s no need to shut down the pump.