JHZR2
Member
- Location
- New Jersey
- Occupation
- Power Systems Engineer
This is a question related to some hurricane relief work. In one home (really will be connected to two homes next to each other via lockable disconnects), a 20kW genset was provided. It's not on the mainland and so power won't be restored for months, nor are a wide range of gensets easily found. It's a beggars can't be choosers scenario. There are no manuals and I cannot find one online!
Apparently its set up as a 3ph delta configuration, so I'm assuming there is a setup to provide ancenter point neutral the a-c phase and provide a high leg setup to provide split phase 120/240ac for home. Since its residential, and there are no three phase loads, the imbalance will naturally be high, correct?
If the controls only permit 20% unbalanced load capability, will the output be limited to around 40% of the genset rating? Since the b phase will be completely unloaded, it seems to me that the genset can only support up to 20% loading on the a and c phases, and assuming that there is some imbalance in the load on either side of the split phase, the first one to hit 20% load would trigger a fault.
Is my thought process on this correct?
thanks!
Apparently its set up as a 3ph delta configuration, so I'm assuming there is a setup to provide ancenter point neutral the a-c phase and provide a high leg setup to provide split phase 120/240ac for home. Since its residential, and there are no three phase loads, the imbalance will naturally be high, correct?
If the controls only permit 20% unbalanced load capability, will the output be limited to around 40% of the genset rating? Since the b phase will be completely unloaded, it seems to me that the genset can only support up to 20% loading on the a and c phases, and assuming that there is some imbalance in the load on either side of the split phase, the first one to hit 20% load would trigger a fault.
Is my thought process on this correct?
thanks!