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Power-User

Join Date: Jan 2011
Location: Lahore, Pakistan
Posts: 113

How To Find Capacitor Ratting of Water Pump Motor?

05/31/2013 12:20 PM

Dear Sir,

I was using water pump at my home & its specifications are mention below, Today's its capacitor has been faulted, i opened its cover & try to find its ratting but there is no any values mention on capacitor body. now please help me which capacitor will be suitable as per motor ratting?

Pump Motor 1HP

RPM 2850

Phase Single

Voltage 220VAC

Your prompt action will be appreciated.

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Guru
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#1

Re: How To Find Capacitor Ratting of Water Pump Motor?

05/31/2013 9:38 PM

I take it the motor has a rating plate.

Try phoning the motor manufacturer. They will give their prompt attention to you're enquiry.

It won't involve people that don't have the full information making assumptions and wild guesses.

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Power-User

Join Date: Jan 2011
Location: Lahore, Pakistan
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#2
In reply to #1

Re: How To Find Capacitor Ratting of Water Pump Motor?

06/01/2013 2:47 AM

Dear Sir,

There is no any name plate available or missing that's the reason i put request to hare.

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Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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#6
In reply to #2

Re: How To Find Capacitor Ratting of Water Pump Motor?

06/03/2013 3:31 AM

And how is the forum supposed to know, when the motor cannot be seen from here?

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Power-User

Join Date: Jun 2010
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#3

Re: How To Find Capacitor Ratting of Water Pump Motor?

06/01/2013 3:07 AM

The last time I had ratting, the little blighters had chewed up the insides of the capacitor. The signs were obvious, and I had no trouble seeing the problem.

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Power-User
Belgium - Member - New Member

Join Date: May 2007
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#4

Re: How To Find Capacitor Ratting of Water Pump Motor?

06/01/2013 6:12 AM

I guess a capacitor +/- 16 uF 450V will fit, compared with an other 1HP 2Pole 220V 50Hz motor.

Please measure the voltage at the capacitor when the motor is on load, it should be +/- 400Vac. Also compare the current the motor takes full loaded it should be +/- 4.5 Ampères. If the motor is not warming excessief, it will fit.

Information given without any liability.

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Guru

Join Date: Dec 2007
Location: Mumbai, India
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#5

Re: How To Find Capacitor Ratting of Water Pump Motor?

06/01/2013 6:32 AM

Ask any local shop owner at Lahore, he will guide you.

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Engineering Fields - Electrical Engineering - New Member

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#7

Re: How To Find Capacitor Ratting of Water Pump Motor?

06/04/2013 11:27 PM

Can you be able to provide the type and dimension of the capacitor. If possibile can you show the picture of it. How do know that the capacitor is faulty? Is there a physical sign of damage on the capacitor, do you understand it's function. What is the motor make. If there is no rating, we can only assist you basing on you giving us the above information correctly. Thanks.

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Guru

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#8

Re: How To Find Capacitor Ratting of Water Pump Motor?

06/05/2013 6:48 AM

whats a few micro farads here or there? between friends? you could always just Google 1HP motor, 220V.....and get a real close comparison!

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