A
Greetings,
We are running 2,5 MW Diesel generator (400 VAC) and synchronizing it to the utility power grid. There is nothing abnormal during ramping load up to 1 MW. When the load is increased to 2 MW, we are starting to see something abnormal behaviour in grid line voltage and therefore in generator voltage. Both voltages are starting to swing from 380 VAC to 420 VAC. When we reduce the load back to 1 MW the swinging stops and the voltages are stabilized. Could the 20 kV / 0,4 kV transformer affect the voltage fluctuations?
We are running 2,5 MW Diesel generator (400 VAC) and synchronizing it to the utility power grid. There is nothing abnormal during ramping load up to 1 MW. When the load is increased to 2 MW, we are starting to see something abnormal behaviour in grid line voltage and therefore in generator voltage. Both voltages are starting to swing from 380 VAC to 420 VAC. When we reduce the load back to 1 MW the swinging stops and the voltages are stabilized. Could the 20 kV / 0,4 kV transformer affect the voltage fluctuations?