phase rotation testers

[Knobhead]

Sounds like fun Tony, any oh **** moments or did it all turn on ok?

There's been a few "Why did I do that?" moments.

The best bit was being accused of being drunk. The above switchroom and the great white chief showed up. He noticed incomer 1 was BYR, incomer 2 RYB. Off he goes to the engineering manager saying I must have been drunk to make such a stupid mistake.

At least he had the decency to come back and apologise.




The bottom line, even if the LV intake is reversed so long as the system follows the same rotation throughout you won’t get a problem.

Note, I did say LV, once transformers get involved then there’s phase shift to take in to account. I’ve seen some glorious balls up due to that!

 

[Simon-0116]

Use mine for setting 3 phase sockets up as 123 so all machines working same no matter were plugged in

 

[davesparks]

But you test phase sequence as part of inspection and testing so why do you then need to go round and test with a rotation tester aswell?

 

[shanky887614]

But you test phase sequence as part of inspection and testing so why do you then need to go round and test with a rotation tester aswell?

not all mft's have a phase rotation setting and try getting rotation right on a ct pump when you cant get to fan on pump and no phase tester