Substation Installation Choices
Substation Installation Choices
(OP)
What are the advantages/disadvantages/potential problems that need to be addressed when choosing between the following installations? Cost and redundancy need not be addressed.
The installation of a single 4000kVA transformer or two 2000kVA transformers.
The installation of a single 4000kVA transformer or two 2000kVA transformers.






RE: Substation Installation Choices
4000kva advantages
only one main breaker high side
only one main breaker low side
only one set of relays
only one SWGR
no problem about getting load balanced
no problem about getting one XFMR overloaded while the other has spare capacity
2x2000 advantages
smaller short circuit current in the secondary
If a capacitor bank is considered and you have some VFD (harmonic production)you can put most of these VFD in one XFMR and have the other XFMR a rather clean
RE: Substation Installation Choices
RE: Substation Installation Choices
RE: Substation Installation Choices