"Comment on the measured values obtained" <<<< Can you help me please?

[05gmccarthyg]

Hi, above is a picture of some measurements I have taken, and there is a task underneath it that asks me to "Comment on the measured values obtained". I'm not really sure WHAT it is I have to comment on, could someone help me out please?

Thanks a lot.

 

[telectrix]

not a very clear pic. mate, but from what i can see, the only comment i can make is that itr shows that the phases are fairly well balanced. (each phase is drawing approx. the same current)

 

[05gmccarthyg]

not a very clear pic. mate, but from what i can see, the only comment i can make is that itr shows that the phases are fairly well balanced. (each phase is drawing approx. the same current)

Thanks for your reply!

I remember my Tutor mentioning the Power Triangle, something to do with using it to work out what the reading SHOULD come out as before actually testing it.

Thanks again.

 

[telectrix]

if all phase currents were exactly the same the current in the neutral would be 0.

 

[Adam W]

Also think about the relationship between the line voltage and phase voltage, ie is the phase voltage exactly a third of the line, or is there some other kind of equation at work here....

 

[kippaxkid]

you also need to look at the values you have obtained, and ask if they are right.
Can you get those readings from a 1Kw load?
Apply the power triangle and do a checksum.

Chris