Hi Guys!
we are doing synchronizing 02 gensets. one is 400v, the other one is 6.3kv genset. we use a step up transformer 400/6.3KV/DY11 to step up the voltage to 6.3kv and doing the synchronizng at 6.3kv side. Attached is single line diagram. The synchronizing controller is easygen 2300. when the controller close the 6.3kv breaker to syn. the 400v breaker at 400v side tripped immediatly.
so, i am thinking about the fault can come from the transformer with the questions as below:
1. The Step up transformer 0.4/6.3kv/DY11 is ok for this application?
2. the phase angle shift between primary winding and secondary winding of the transformer affected to the system when synchronizing?
3. the winding connection of the transformer need to match the winding connection of the gensets (both LV and MV side)?
Can you please give me advices for this case?
Thank you in advanced.
we are doing synchronizing 02 gensets. one is 400v, the other one is 6.3kv genset. we use a step up transformer 400/6.3KV/DY11 to step up the voltage to 6.3kv and doing the synchronizng at 6.3kv side. Attached is single line diagram. The synchronizing controller is easygen 2300. when the controller close the 6.3kv breaker to syn. the 400v breaker at 400v side tripped immediatly.
so, i am thinking about the fault can come from the transformer with the questions as below:
1. The Step up transformer 0.4/6.3kv/DY11 is ok for this application?
2. the phase angle shift between primary winding and secondary winding of the transformer affected to the system when synchronizing?
3. the winding connection of the transformer need to match the winding connection of the gensets (both LV and MV side)?
Can you please give me advices for this case?
Thank you in advanced.