three phase sequence testing

[Pondy]

Hi guys, as the title suggests just trying to get my head round three phase sequence testing, if I understand it correctly this is confirm that the three phases are in sequence.....obviously
Now as I understand it this is obviously a live test and a three test leads are connected to L1 L2 L3 and test button pressed, the 'red' probe on the tester is connected to L1. Green to L2 and blue to L3. If there where any sub boards they would have to be tested as well to make sure that the phases are in line. Am I correct, your help is much appreciated.

 

[telectrix]

red, YELLOW and blue. or with these stupid colurs we have been forced to use now, it'll be grot, black and grot.

 

[Pondy]

Thanks, just want to make sure I'm understanding correctly

 

[telectrix]

have to revise my post. if using a MFT for this purpose, your leads may not be red/yellow/blue. if you google phase rotation test, there's a youtube by chris kitcher showing the test using a megger 1730, and sure there's a few more.

 

[Pondy]

Thanks tel....your a star

 

[dan86]

delta...

 

[telectrix]

nah, in delta, i run too fast.

 

[dan86]

and that's Gotta be bad for your old joints

 

[telectrix]

I only smoke fresh joints.

 

[dan86]

good comeback. well played. I'm gonna give you a like for that

 

[telectrix]

you got a thanks for that

 

[Knobhead]

So you test phase rotation, what do you do if it’s reversed?

 

[telectrix]

stand on his head?