Trafo Tap changer control and generator AVR
Trafo Tap changer control and generator AVR
(OP)
Dear All.
We have some situation a first time.
Industrial substation with co-generation.
SS 170/22kV
170kV :two infeeds, coupler, two outgoings to trafo 170/22kV 70MVA.
22kV : two infeeds from those trafos, coupler and two infeeds from set gaz-turbine-generator 70MVA 11.5/22kV trafo
w/o TCH.
AVR of generator in the power factor mode.
Tap changer control of gris trafos in the automatic voltage control mode.
Possible 3(three) option of work
1. Generator in island mode, no problem with load.
2. Generator in parallel with one grid trafo w/o factory load, import energy, factory is feeded by second grid trafo.
3. Generator in parallel with grid trafo and generator is feeded factory load and import energy to grid.
I try understand, what are right modes of AVR and tap changer control in every case.
Could you help me with this issue, maybe some links to documentation, ideas.
Thanks in advance.
Best Regards.
Slava
We have some situation a first time.
Industrial substation with co-generation.
SS 170/22kV
170kV :two infeeds, coupler, two outgoings to trafo 170/22kV 70MVA.
22kV : two infeeds from those trafos, coupler and two infeeds from set gaz-turbine-generator 70MVA 11.5/22kV trafo
w/o TCH.
AVR of generator in the power factor mode.
Tap changer control of gris trafos in the automatic voltage control mode.
Possible 3(three) option of work
1. Generator in island mode, no problem with load.
2. Generator in parallel with one grid trafo w/o factory load, import energy, factory is feeded by second grid trafo.
3. Generator in parallel with grid trafo and generator is feeded factory load and import energy to grid.
I try understand, what are right modes of AVR and tap changer control in every case.
Could you help me with this issue, maybe some links to documentation, ideas.
Thanks in advance.
Best Regards.
Slava





