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therealabdo
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Join Date: Feb 2009
Posts: 33

Confused About a Power Meter

11/06/2010 4:43 AM

I am not an Electrical engineer.. But the other day I have seen a device just like the ampmeter which has 3 outlines which are connected to the 3 phase voltage. and this device would be able to measure the Watt... My question is that the given watt is the instant watt or what? because I was having a problem by comparing the watt number I had from this device and the watt which should be used for the factory
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timelord
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Join Date: Oct 2010
Location: Quantum Dimension
Posts: 85
Good Answers: 1
#1

Re: Confused about a power meter

11/06/2010 6:58 AM

Yo there,

Does it look somewhat like this ?

It's a Phase sequence tester. To test if you have the correct sequence and rotational field on a 3 phase system.

T L.

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therealabdo
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Join Date: Feb 2009
Posts: 33
#2
In reply to #1

Re: Confused about a power meter

11/06/2010 7:14 AM

yeah exactly!! but it was measuring the kw ... it has an indicator which shows that it is measuring so
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timelord
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Join Date: Oct 2010
Location: Quantum Dimension
Posts: 85
Good Answers: 1
#3
In reply to #2

Re: Confused about a power meter

11/06/2010 7:29 AM

that's possible yes, whit an extra clamping part.

T L.

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gringogreg
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Join Date: Dec 2007
Location: Haverhill, MA
Posts: 1149
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#4

Re: Confused About a Power Meter

11/06/2010 5:22 PM

What is a Watt? Potential (Volt) * Current (Amp) * power factor (Cosine of the phase angle between potential and current) The ability to do work. This is indeed an instantaneous value. The work done, energy. is the integral (sum) of power (watts) over time: Watt-Hours.

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timelord
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Join Date: Oct 2010
Location: Quantum Dimension
Posts: 85
Good Answers: 1
#5
In reply to #4

Re: Confused About a Power Meter

11/06/2010 5:48 PM

And ? what has this to do with the subject ?

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