English to Arabic Tech/Engineering Energy / Power Generation

Electrical Considerations:
The 3.5MW motor on the VFD (Variable Frequency Drive or Variable Speed Drive) is a major concern for directly coupled alternators (i.e. 6.6kV alternators connected in parallel). The alternators (with their limited fault impedances) will be directly exposed to the harmonic content from the VFD front-end. The harmonics will also be ‘seen’ by other loads connected to the alternators. This can be mitigated by implementing active front-end rectifiers on the VFD, but this is extremely expensive.