Paralleling of autotransformer and normal power transformer?
Paralleling of autotransformer and normal power transformer?
(OP)
Dear collegues,
Is it possible to operate an autotransformer 74MVA YN,a0d11, 275/66/11kV, 10%, in parallel with a normal three winding power transformer 74MVA, YNyn0d1, 275/66/11kV, 11.2%,? Can an autotransformer ever be operated in parallel with a conventional power transformer? Need help from transformer experts.
Is it possible to operate an autotransformer 74MVA YN,a0d11, 275/66/11kV, 10%, in parallel with a normal three winding power transformer 74MVA, YNyn0d1, 275/66/11kV, 11.2%,? Can an autotransformer ever be operated in parallel with a conventional power transformer? Need help from transformer experts.






RE: Paralleling of autotransformer and normal power transformer?
RE: Paralleling of autotransformer and normal power transformer?
RE: Paralleling of autotransformer and normal power transformer?
Bill
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"Why not the best?"
Jimmy Carter
RE: Paralleling of autotransformer and normal power transformer?
RE: Paralleling of autotransformer and normal power transformer?
The vectors, as long as the windings are connected properly would be fine. As previously mentioned though, there are much more concerning issues in terms of X/R ratio, how the system acts for +ve/-ne/zero sequance scenarios, etc...
RE: Paralleling of autotransformer and normal power transformer?
The Z variation with tap changing will be diffrent depending on the physical position of the regulating winding with respect tp nothers.Hence the need to check the impedance at extreme tappings.
Of course neutrals are to be earthed.
RE: Paralleling of autotransformer and normal power transformer?
RE: Paralleling of autotransformer and normal power transformer?