Phase Rotation - Page 2 - Electrician Talk - Professional Electrical Contractors Forum

JoeHVD · 06-03-2009, 11:52 AM

Quote:

Originally Posted by Zog

Look for "phasing sticks" very common, if you cant fond it I will post some links but google is your friend. Dont look for high voltage, you are looking for medium voltage.

Go to bierermeters.com, they have a meter called a PDSeries 25kV or 50kV model that will phase sequence anything from 208Volts to 50kV and up if you add extension resistors.

JoeHVD · 06-03-2009, 12:05 PM

If you do any high voltage rotation get either a PD25 or PD50 meter from Bierer Meters. These meters will phase anything from 208 volts to 50kV. If you need to go higher than 50kV add extension resistors and you got it.

JoeHVD · 07-07-2009, 03:04 PM

PD800W from bierermeters.com, the best there is!!!

Chris Kennedy · 07-07-2009, 07:16 PM

Call me kookie, but why not check the secondaries of the LV transformer/s it serves?

powerlineman78 · 07-07-2009, 08:54 PM

If you know what phase is what abc bca and cab are all clock wise rotation.

JoeHVD · 07-08-2009, 08:30 AM

Quote:

Originally Posted by Chris Kennedy

Call me kookie, but why not check the secondaries of the LV transformer/s it serves?

You can. You can check the low voltage side (anything 120/208V and above) all the way to 765kV. What I am saying is you dont have to waste your time going to a low voltage side.

JoeHVD · 07-08-2009, 08:43 AM

Quote:

Originally Posted by powerlineman78

If you know what phase is what abc bca and cab are all clock wise rotation.

"Rotation" is a bad word anyway, "sequence" is better, it keeps people from arguing. If your in the field and nothing is labled a,b or c, the meter (PD800W) will tell you your sequence with LED's plus how many degrees of separation (LCD)

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