Dowding and Mills Electronics (DM-E), a leading independent repairer of industrial electronics, has introduced a comprehensive load test facility for drives at its workshops in Aston, Birmingham.
The load room comprises two test rigs of differing sizes and allows the testing of AC inverters and DC drives ranging from 3kW to 110kW. The rigs can vary the torque applied by the load motor and the speed of the test motor in programmable steps over a period of time to create a customised test profile. These test profiles are compiled by the engineers and stored in a database for retrieval, and are tailored to suit a particular drive or even a particular customer’s required profile, recreating the actual on-load running characteristics of the drive under test.
During the test, the engineer can monitor the progress using real-time graphs showing speed, load, current, voltage and drive temperature. When the test is finished, the results are exported to a spreadsheet for production of detailed customer reports and performance graphs.
Bob Scott, general manager of DM-E, said of the new set-up: ‘The system has been designed so that virtually all drives, whether old or new, can be fully functionally tested, ensuring complete customer confidence. We have already generated interest from a number of drive manufacturers who are keen to use our facilities to test their products.’