Water Pump - Motor Turns Off - CR4 Discussion Thread

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nzioka Participant Join Date: Jul 2008 Posts: 4	Water Pump - Motor Turns Off 04/03/2009 10:36 AM
	hi everybody,i have a 380 vts 4.00k ws grundfoss motor which am using with a submersible bore hole pump.the motor starts well after pumping water for about ten minutes.the motor draw more current and a 45amps.three pole mcb turns off.members what might be the problem?
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#1 Re: water pumps 04/03/2009 10:45 AM
	Does the well empty to the point where the pump suction draws air? __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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garth Guru Join Date: Sep 2006 Location: NSW Australia Posts: 1101 Good Answers: 23	#2 In reply to #1 Re: water pumps 04/04/2009 8:14 AM
	Hi PW, I can see it overheating if no cooling water,would expect sensor to shut down pump but not see extra amps being drawn. Possibly bearings overheating causing O/L due to binding, or pump sucking up silt. How many times has this pump been used with this problem? 5 or 6 or all year many times? bearings would have collapsed if it has been many times I would have thought. A bit more info please. __________________ Dont get on to the roundabout if you dont know how to get off
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Andy Germany Guru Join Date: Sep 2006 Location: Near Frankfurt am Main, Germany. 50.390866N, 8.884827E Posts: 17996 Good Answers: 200	#3 Re: Water Pump - Motor Turns Off 04/05/2009 2:56 AM
	What sort of "head" are you pumping to? If its a tank, do you have an automatic valve anywhere? __________________ "What others say about you reveals more about them, than it does you." Anon.
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#4 Re: Water Pump - Motor Turns Off 04/06/2009 3:24 AM
	Is it running sdrawkcab? __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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nzioka Participant Join Date: Jul 2008 Posts: 4	#5 In reply to #4 Re: Water Pump - Motor Turns Off 04/11/2009 7:45 AM
	thanks ,am pumping the water to a trough for animals.the flow rate is ok as per the available manual .the pump operates for only ten minutes and it goes off.when i replace the motor with another one i donot get any promblem, i really want to know what might be wrong.
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Andy Germany Guru Join Date: Sep 2006 Location: Near Frankfurt am Main, Germany. 50.390866N, 8.884827E Posts: 17996 Good Answers: 200	#6 Re: Water Pump - Motor Turns Off 04/11/2009 3:32 PM
	Simply not enough info. Start with a picture and a technical run down of the pump and the way its connected to both water & power...... __________________ "What others say about you reveals more about them, than it does you." Anon.
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Andy Germany (2); garth (1); nzioka (1); PWSlack (2)

You might be interested in: Water Pumps, Submersible Pumps, Submersible Mixers

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Water Pump - Motor Turns Off