Moving equipment experts please answer! ! !
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Piston pump, produced in Brown & Rupee, Germany, with three plungers, the system outlet pressure is 3.2Mpa. Why does the pump fail to start when the pump back pressure exceeds 0.4Mpa? What is the reason? What measures should be taken to solve this problem? Thank you for your answer, I will give you more points if you answer well! It's urgent, I hope everyone can help! !
Is the motor equipped with over-current protection and the current value is too small? Check and correct it.
The overload protection system is activated when starting with load.
The back pressure is high, causing the power to reach high and the motor overload protection to trip. The back pressure valve should be adjusted.
1. If the motor is over-current, the motor current protection value can be appropriately increased. 2. What is the reason for your 0.4Mpa back pressure? Pumps generally have backflow, you can pump backflow first and then integrate it into the system
Start without load (close the outlet valve, open the return valve), wait for the motor speed to reach the normal value, about 3-5 minutes, then load again (open the outlet valve, close the return valve).