Submersible pumps burn out every week | Root Cause Analysis

As others stated, need more details. Burn out, you mean the motor windings fail? Is there any temperature alarms for winding, moisture alarm for seal? Who is the OEM, the model, all will help in the diagnosis of your problem. 

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IF the system has ran fine for years and you are now having issues. KISS principle, keep it simple stupid is a good practice, pardon the analogy, have you checked the discharge check valve for proper operation? Just because you see movement on the outside of the check valve does not mean things are moving on the inside. If the pump runs dry it typically fails the seal if it is a non oil style pump. How long does the pump run before it fails, hours, days, weeks?

IF you changed piping recently you could be running the pump off its designed curve or operating parameters. Blockage somewhere in the discharge line, break in the discharge line.

The electrical connections could be in question, like hooking it to 480 volt and it is wired for 240 volt, running backwards. Have you checked the motor amps? Taking the motor amps and dividing by 1.2 will give you the approximate HP the pump is drawing at the time of your amp reading. Is the winding grounded? Is the cable pinched? Are the wires going to the pump grounded? Is the contactor/fuses/switch single phasing?

This system is good to 50' depth for trending of temperature and vibration

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Contact us to discuss your requirements of Submersible Slurry Pump. Our experienced sales team can help you identify the options that best suit your needs.

As you can see there are lots of questions that still need answered

Dave

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