Analysis and Design of Calibration Scheme for Reactor Circulating Loop Coolant Flow Transmitter

Affection of static pressure may cause some error when differential pressure transmitter be used. Based on the reactor coolant flow rate measurement arithmetic do not calculates affection of static pressure, analysis is performed on the TP1RCP59 procedure in the reactor coolant flow rate measurement, during the commissioning of Unit 1 of Fuqing Nuclear Power Plant. Together with site tests and test verification. It has been found that the calibration arithmetic of TP1RCP59 is right, but not perfect. Once the Sensor should be replaced ,better arithmetic is provided by this article. Meanwhile the differential pressure used to calculate the reactor coolant flow rate is not exact, which should be ameliorated.