Local partner: ADM Engineering
Industry: Pulp & Paper/Packaging
Location: Canada, Timeline: 2019-2020
The challenge facing ADM was to determine what was causing the periodic failures in the main transformers and to recommend a reliable remedy. Following site measurements and subsequent analysis of the data captured by ADM and Comsys, the root of the problem was identified. The culprit was the resonance caused by the interaction between the natural resonant frequency of the power system, tuned capacitor banks, and nonlinear loads. Based on these findings, ADM was able to recommend ADF as the only viable solution to the site’s persisting problems.
ADF P300 – Active Dynamic Filters engineered and assembled by ADM using PPM300 modules.
The ADF solution has been operating successfully since January 2020, eliminating resonance and harmonics as well as providing near unity power factor. Cost savings alone have amounted to around CAD 30,000 per month by eliminating harmonics and correcting the power factor. Increased uptime and productivity provide even more value.
Mill power outage frequency significantly reduced
Oil cooled transformer runs much cooler and requires less frequent oil changes
Significantly reduced running temperature of several transformers
Reduced nuisance trips and blown fuses of 600V switchgear
Reduced saturation of feeding transformers, reduces voltage variations to nominal values
The feedback from the customer has been great. In fact, ADM has received an order to supply three additional ADF packages – 18 PPM300 modules for this site – and has also been involved in identifying and solving power quality issues at other of their sites.