3 phase 230v highleg service....

[Fulthrotl]

Have you measured all three 'phase to phase' voltages? My guess is that you will find that the phase to phase voltages will be different, and that the unbalanced supply to the motors is causing unbalanced current consumption.

-Jon

yup. unless ohm's law has been repealed.

 

[hardworkingstiff]

Interestingly, I remember from my puppy days that the high leg used to be called 190v, not 208, but the 208v fits the theory.

In Norfolk, early 70's it was called 190 also.

I think it was from the days of 220/110. When you go to 240/120 the 190 goes to 208............................... right?

 

[LarryFine]

I think it was from the days of 220/110. When you go to 240/120 the 190 goes to 208............................... right?

Absoloopy!

 

[jamz]

can you get high leg on 480v systems?

can you get high leg on 480v systems?

can u get 480v/277v with high leg? Are there such systems?

 

[roger]

can u get 480v/277v with high leg? Are there such systems?

No.

Roger

 

[jim dungar]

can u get 480v/277v with high leg? Are there such systems?

If someone built a 480V center tapped delta, the voltages would really be 480V L-L, 240V L-N, and 415V High L-N.