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  1. bmw318be

    High Amp of Inverter Duty Motor 15 KW with inverter ATV 610D for CONSTANT TORQUE Plunger Pump

    @LionelHutz, I changed the VFD setting U/F setting of VFD to 100%, i am able to drive the pump at 50 Bar. Before the setting of U/F wass at 30%, Motor stalled when i loaded the pump to 25Bar. But from torque sensor, it showed high Torque, but the motor current of 15 KW in my workshop was...
  2. bmw318be

    High Amp of Inverter Duty Motor 15 KW with inverter ATV 610D for CONSTANT TORQUE Plunger Pump

    @Littleinch, You mentioned earlier the total power at 50 Bar is only 2HP. what is your insight wheb we run in VFD the power BKW is getting quadraticly high ? .
  3. bmw318be

    High Amp of Inverter Duty Motor 15 KW with inverter ATV 610D for CONSTANT TORQUE Plunger Pump

    @LionelHutz. Setting : only set for 25 KW parameter My apologize this was typo, setting motor parameter as PER 15 kW motor 4 pole. Sorry for the confusions
  4. bmw318be

    High Amp of Inverter Duty Motor 15 KW with inverter ATV 610D for CONSTANT TORQUE Plunger Pump

    Hi All, By changing the U/F setting of VFD to 100%, i am able to drive the pump at 50 Bar. Before the setting of UF eas at 30%. Motor stalled when i loaded the pump to 25Bar. My objective of this workshop test using 15 KW motor to prove that the old motor of 11 KW at 11 Hz which has been run...
  5. bmw318be

    Magnetic Drive Pump Leak at Containment Shell

    Hi Jasada, Sorey for the late reply. Please refer to attached https://1drv.ms/u/s!AshU1On9Vy6fiv1Uqq8m0Ck6cLSL9g from the pump photo the motor is frame B35, however it was not bolted. 1. How many KW the motor power and RPM . 2. This normally no alignment is done since it is flanged...
  6. bmw318be

    High Amp of Inverter Duty Motor 15 KW with inverter ATV 610D for CONSTANT TORQUE Plunger Pump

    Hi Jraef, The recomennedation for 15 KW from manufacturer is Delta connection. I also tried star,It has low current when i increases the mechanical load for rated application such as pump pressure, result motor stalled unable to drivs the pump at low pressure. From this 3 KW above shall...
  7. bmw318be

    High Amp of Inverter Duty Motor 15 KW with inverter ATV 610D for CONSTANT TORQUE Plunger Pump

    Hi Littleinch, It has forced cooling fan so throttling it as this is membrane application where need to boost the pressure. The pump is designed for the pressure up to what i throttled. I just trying to troubleshoot of higher current of smaller motor of 11 KW at site with the same pressure but...
  8. bmw318be

    High Amp of Inverter Duty Motor 15 KW with inverter ATV 610D for CONSTANT TORQUE Plunger Pump

    Hi, I wonder if my setting of Variable speed drive need to be fined tune for Constant torque application. Application: 10 HZ of 15 KW 4 Pole 50 Hz Pump: Plunger triplex at 20 LPM Pressure: 50 Bar achieved by regulating the throttle valve with gate valve VFD; ATV 610D Setting : only set for 25...
  9. bmw318be

    Plunger Triplex Pump- Stiff Shaft cause high current

    Hi Littleinch, Issue is my system pressure is throttled not gdnerated by systsm at 51 bar and the motor is overload whixh is not supposed to be. Littleinch, i managed bring down the pump to my setup system however i am using a different 15 KW motor to test this pump actual power consumption...
  10. bmw318be

    Plunger Triplex Pump- Stiff Shaft cause high current

    Hi Littleinch, It is Phased to Phased UV UW VW However, wondering why the current is exceeding rated current of the motor ? . Is it normal at VFD 20%, generating flow 18 LPM 51 Bar, the power usage is greater than 11 KW ? Using the manufacturer formula...
  11. bmw318be

    Plunger Triplex Pump- Stiff Shaft cause high current

    Hi Littleinch, If i use fluke voltmeter. Measured it is 38.4 Volt at 10 Hz using ac multimeter. Below pump spec https://www.northridgepumps.com/upload/pdfs/CAT-1540E-1540EC-1541-1541C-Technical-Specification-English.pdf
  12. bmw318be

    Plunger Triplex Pump- Stiff Shaft cause high current

    Littleinch, Yes would do, i measured from incoming, when run on VFD, i did not measure the voltage at outgoing. Ok would do check on this terminal phased as well.
  13. bmw318be

    Magnetic Drive Pump Leak at Containment Shell

    Hi Jasada, I encountered a similar failure of magnetic drive but it is with external gear magnetic drive. Can you check the following 1. NPSH margin during the operation 2. Suction Pressure 3. Vibration 4. shaft Alignment 5. Keyway tolerance In my encountered of containment can and drive...
  14. bmw318be

    Plunger Triplex Pump- Stiff Shaft cause high current

    Hi, We have triplex pump running for sometime with VFD of 20% of 50 HZ Cat Pump 11 KW 4 Pole motor 400 V Maximum current 415 V is 20.2 Ampere. We see the running current at Discharge Pressure of 51 Bar is 20.6 Ampere and at 0 Bar is 11 Ampere. At 0 Bar to 45 Bar, the motor was running okay...
  15. bmw318be

    maximum Lift of Diesel Pump

    Littleinch, It is real apllication, most of tbe diesel storage is in underground and located a disfance away from pump room. operating low pressure, are you referring to low npshr of rotary pump ? . Assuming the npshr is low, however the suction lift is already 7 to 8 m with ample npsh margin...
  16. bmw318be

    maximum Lift of Diesel Pump

    With reference to this similar thread, therr was discussion that a pump, pressumed a self priming is able to lift up to 12 m height. https://www.eng-tips.com/viewthread.cfm?qid=307610 Iam wonderin if how it be possible considering a pump is having NPSHr, let say 0.3 to 1 meter depending on...
  17. bmw318be

    Laser Shaft alignment Pump, gearbox input outputand motor

    Hi, Thanks for the advise, I have moved the shims to the machine bolt and it is easy to align now with coupling on.
  18. bmw318be

    Laser Shaft alignment Pump, gearbox input outputand motor

    Hi, Appreciate for such a great suggestion, @FacEngrPE It is temporary setup testing, in actual site, the frame would be filled with epoxy grouting on 4" C channel after alignment and actual pipe is hooked up. I noted on suggestion of Tugboat that I should place the shim inner on the holding...
  19. bmw318be

    Laser Shaft alignment Pump, gearbox input outputand motor

    Tugboardeng, Sorry I did not get your point that I shoupd put the ahim on side at # 5. The 5 is where the shim would support the whole wright of geaebox. The bolt hole as i said is not symetrical. I also not getting you 2nd mounting pad is designed in the wrong direction. Which one ?
  20. bmw318be

    Laser Shaft alignment Pump, gearbox input outputand motor

    Hi Thanks for the inputs, I attached the alignment photo of the equipment's for better discussion. https://1drv.ms/u/s!AshU1On9Vy6fipV5fodEJqpQr6bXpA?e=YJh05m Here what is the finding: 1. The Gearbox bolt is not symmetrical in design, shims can only be placed at the back of the gearbox...

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