 Sizing a transformer feeding a non-linear load (rectifiers, uninterruptible power supplies, varying speed motors, etc.)
Standard transformers are sized on the basis that they are feeding linear loads.
The supply of non-linear receivers, such as rectifiers, uninterruptible power supplies, varying speed motors, etc. … disturbs the operation of the transformer, due to the more or less significant presence of current harmonics. In this case, it is necessary to derate the transformer capacity. This should be done during the design phase, in accordance with NF C 52-112-4 |
Trihal cast resin transformers HV/LV and HV/HV
