Accurate Measurement of Energy Dissipated in Braking Rheostats in DC
Railway Systems
Abstract
This paper describes the measurement system used to monitor the energy
dissipated in the braking rheostat resistors on board a locomotive
operating in a DC rail system. The aim of the activity is the accurate
estimation of the energy, nowadays wasted, that could be recovered
thanks to the implementation of the smart grid paradigm in the DC
railway system. To provide metrological reliability to the measured
wasted energy, a preliminary identification and estimation of the
uncertainty is provided. The target uncertainty of the measurements is 1
%.