Denan
Electrical
- Jul 19, 2006
- 66
Hi all,
I have a problem with a CHP plant, strange gen.CB trips.
The situation is like this:
First I have to say that the gris in the area is very bad, unstable. there are two similar plants, one (our, with the problem) has one genset, and the other (neighbour) with two gensets. If we are on the grid (both plants are running on the grid only, no island mode etc.) and the neighbour starts his two engines our engine often trips. But if the neighbour is running first and we start after, everything is OK. And, also the trip does not happen every time, but most of the times. I attach some trendings (I am not there, but got it from my colleague), as well as AVR settings.
Hopefully someone has an idea of what could cause these problems.
As I mentioned, the grid is very unstable, and the voltage is usually little bit higher than nominal (Un=10,5kV)
Regards,
Denan
I have a problem with a CHP plant, strange gen.CB trips.
The situation is like this:
First I have to say that the gris in the area is very bad, unstable. there are two similar plants, one (our, with the problem) has one genset, and the other (neighbour) with two gensets. If we are on the grid (both plants are running on the grid only, no island mode etc.) and the neighbour starts his two engines our engine often trips. But if the neighbour is running first and we start after, everything is OK. And, also the trip does not happen every time, but most of the times. I attach some trendings (I am not there, but got it from my colleague), as well as AVR settings.
Hopefully someone has an idea of what could cause these problems.
As I mentioned, the grid is very unstable, and the voltage is usually little bit higher than nominal (Un=10,5kV)
Regards,
Denan