Design and realization of the economical operation monitoring system for traction transformers

Security and economical operation of the traction transformer is a significant guarantee for electric railway with growing apace. Based on analysis of the economical operation principle with an instance, three kinds of power losses due to transformer and the outlay are discussed. Meanwhile, this paper puts forward an economical operation monitoring system for traction transformers, which links to configuration software and digital protection system. The results of system operation (no-load and rated load) confirm that the traction transformer with low power consumption should be selected with a priority to develop economical operation. The embedded monitoring system can be extended in transformer field to analyze power losses.