Are you having this problem when only one of the generators is working and the other isolated from the bus?. If so I think the problem is with the grounding since both generators are grounded separately and the harmonic current circulates.If this is the problem, you can use a common neutral...
I too agree with Busbar. The harmonics are generated by the drive and one thing to be taken care is that the transformer desgn takes into account the additional heating due to these harmonics. Usually the trick is to increase the transformer rating by a factor so that the effect of harmonics is...
As detailed above many, the main points for the cable sizing can be summarised as below.
1. Ampacity of the cable to meet the load current (Remember to derate the cable for the installation conditions and grouping factors)
2. If it is a medium voltage cable you would also have to check the...
