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Hi 50 Hz Cannot read the plate like I said before lack on information. This data I got from a photo I found and I can barely read it. I will keep looking for more information but we dealing with very old pumps

Hi guys, Sorry took so long like I said it was not easy finding information about these pumps They are really old, documents are almost none existent and the few docs I found were images and I can´t barely read. Vertical Discharge pressure: 40 kg/cm2 Suction pressure: 8,8 kg/cm2 Diferential...

Agree. However like you said VFD is expensive. I was actually thinking on analyzing the system, there may be something it can be done in order to improve the situation. I will see if I can get more information about: 1. System 2. Pumps 3. Motor...

Actually 3 pumps not 2. However system is works only with 2 since with the 3 pump-motor there is no significant gain. The 2 working pumps are identical the one not operational is different. About degraded, we dealing with very old pump-motor, so a little degradation from both is expected...

When I arrived in the company the system was already there, and that's the reason why is hard for me to give data on the same. Because something seem weird that's why individually I decided to investigate. End result I am hear hearing what all of you have to say about it, so I can pin point...

I will see if I can get something from the tags. ---------------------------------------------------------- waross (Electrical) 8 May 19 17:59 Hello Romesffo1. I have edited my last post to include a link to a pump curve tutorial. But on reviewing your data it seems that with two pumps...

I wish I had but I am dealing with very old pump-motor and everybody saying that the documentation was lost.

Agree. But like I explain not even documentation of the pumps I have. That's why all my assumptions where base on test run of 3 vertical pumps, although I didn't put the values of the 3ª Pumps in there but yes you are right. It´s never double but difference is noticeable. I believe next step...

Agree. And thank you. I was not disagreeing with anyone, in fact I was agreeing, since i have one f3ew information, i was asking if what i thought was actually possible looking at the information i posted. Thanks everyone for the help

we had 3 pumps-motor in the same collector, and we stop using all 3 because there was no noticeable increase of pressure or Caudal.

Coting.... " When the mechanical load on the rotor is low the slip rate is lower, the back emf is higher, so the current allowed to flow is reduced (and the resulting power drawn is low). " " When the mechanical load on the rotor is high the slip rate is higher, the current flowing in the rotor...

I believe I am not expressing myself well. My question has to do with me knowing if is possible that the pump-motor will be able to give more than is giving when in parallel. This is not about energy consumption I am just wondering if is possible that my system is restricting the Pump - Motor...

Thank you for you reply everyone. 1. No utility consumption I am running Generators outside of Grid. 2. although everything you said was corrected I am still wondering why is my Amperes Higher for the motors on vertical pumps. Individually their Amperes are higher however in parallel it seems...

System - Take water from a well both pumps connected to a collector and booster pump to take water to destination. Initial intention by building a collector - to increase the caudal of water at the end location and increase pressure at booster pump. Why do I have a difference of consumption...