Our GT Generator will be upgraded with the turbine Advanced gas path.
The Generator output will increase to 296 MW , the power factor of 0,85 will require 184 MVar instead of 171 MVar that are now capable.
GE proposed to replace the Excitation transformer (PPT) since it will require 3150 KVA instead of 2600 KVA.
Due to the high costs imposed GE came with another proposal
TO decrease the excitation ceiling voltage from 2 pu to 1,92 pu
Can you share similar experiences?
From the little things i red, the higher the ceiling voltage (maximum votlage supplied from the excitaiton to the GEN filed) the quicker the AVR control.
The Generator output will increase to 296 MW , the power factor of 0,85 will require 184 MVar instead of 171 MVar that are now capable.
GE proposed to replace the Excitation transformer (PPT) since it will require 3150 KVA instead of 2600 KVA.
Due to the high costs imposed GE came with another proposal
TO decrease the excitation ceiling voltage from 2 pu to 1,92 pu
Can you share similar experiences?
From the little things i red, the higher the ceiling voltage (maximum votlage supplied from the excitaiton to the GEN filed) the quicker the AVR control.