B
Bill Schafer
- Jan 1, 1970
- 0
I have a question as to wether or not I can parallel two three phase
transformers with a common tie on a double ended switchboard arrangement.
We have two identical dry indoor transformers 13.8kV - 480/277V with primary
sources from same utility line. In order to do service on each tansformer
the tie breaker will be required to close, parallel the switchgear (xfmrs),
and open one transformer and asscociated main breaker without disruption.
I have heard this can be accomplished if each of the three phases voltage
angles are with 15 degrees of each other. I am not planning on performing
this task until I am educated enough on this. Can anyone help or provide
some additional information pertaining to the subject.
Thanks in advance.
transformers with a common tie on a double ended switchboard arrangement.
We have two identical dry indoor transformers 13.8kV - 480/277V with primary
sources from same utility line. In order to do service on each tansformer
the tie breaker will be required to close, parallel the switchgear (xfmrs),
and open one transformer and asscociated main breaker without disruption.
I have heard this can be accomplished if each of the three phases voltage
angles are with 15 degrees of each other. I am not planning on performing
this task until I am educated enough on this. Can anyone help or provide
some additional information pertaining to the subject.
Thanks in advance.