Periodic testing of industrial power system components can result in the early detection of problems, allowing corrective actions to be taken before a failure occurs. The positive impact of this on system availability and safety is beginning to be appreciated by both maintenance and production personnel in the mining industry. A variety of procedures are available for periodic testing, although they have some inherent limitations which must be recognized if a meaningful interpretation of the test data is to be achieved. These tests, and their inherent limitations, are reviewed in this paper; appropriate applications for these tests are suggested, and the use of negative-sequence monitoring, as an inexpensive but powerful detector of incipient failure in industrial power systems is proposed.
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Electrical and Electronic Engineering
- Industrial and Manufacturing Engineering
- Engineering (miscellaneous)