2391 Practical

[Quirky]

Help please guys, got my 2391 practical in the morning and got a few last minute questions.

I've never done 3phase testing before, having had a glimpse at the test rig, do I isolate the 3 phase board from the seperate isolator or just from the main switch inside the board. If it's from the isolator then how do I do the ZS and Pfc?

3 phase R1+R2, do i just link l1, l2, l3 with cpc and take 3 readings at the contactor and at the motor?

 

[Sparky Ninja]

The isolator is possibly there for the assessors control, or maybe for you to use for isolation purposes. The ZE and PFC will be measured at the three phase board.
As you say, measure the R1&R2 for each of the three lines.

 

[Quirky]

That's a relief, passed the practical today. Had the theory on thurs so fingers crossed for that!

 

[Sparky Ninja]

Well done.

 

[topquark]

Congratulations and well done!

 

[Paul.M]

Well done Quirky, fingers crossed for the written results.

 

[CRAGS]

Congrats and well done