We have provided design engineering for food processing companies for more than 25 years.
We provided services for an international food processing company at its Toledo, Ohio, facility to replace several components of aging electrical distribution infrastructure. The equipment was housed within an existing dedicated electrical building.
The project included replacement of three existing, 6.9kV- 480V, single-phase service transformers and a radially-fed 480V switchboard with new double-ended, three-phase transformers and associated main-tie-main 480V switchgear. The project converted a single supply to a fully redundant supply of power to several critical facility processes. The existing transformers had exposed bushings, which meant maintenance staff had to work around live 6.9kV bus within the building. The new transformers were designed as pad-mounted transformers to eliminate the exposed bus and located outside to avoid costly building cooling systems for this building, which is typically unmanned.
The project also included significant ventilation and architectural upgrades for the aging electrical building to bring it up to current building efficiency code requirements. Finally, the existing static capacitor banks were a source of extensive maintenance; the project replaced them with active capacitor banks that automatically adjust the volt-amperes reactive (VAR) output to match the distribution system requirements. The capacitor bank output improves the facility power factor, which reduces the kVA demand charges imposed by the electric utility.