EMI/EMC qualification of differential pressure monitoring system for PFBR A case study
Increasing use of fast switching digital Instrumentation and Control (I&C) system in Nuclear Industry has raised the concern of Electromagnetic Interference (EMI) EMI and Radio Frequency Interference (RFI) are considered as common causes for potential failures in microcontroller based systems for nuclear power plants. Electromagnetic compatibility (EMC) concerns related to qualification testing and the electromagnetic environment must be addressed to ensure safe and reliable operation of these systems. It is thus essential to consider EMI/EMC from the initial stage of digital system design. In addition, it is important to carry out EMI analysis on the system during the development phase to avoid serious EMI problems in operational phase. This paper describes the design consideration adopted and EMI/EMC qualification of Differential Pressure Monitoring System developed for low pressure measurement in nitrogen circuit of PFBR. It also deals with the EMI problems encountered during testing and methods implemented to circumvent them.
2016 International Conference on ElectroMagnetic Interference Compatibility (INCEMIC)