FIELD: power industry.
SUBSTANCE: method for determining error of in-core temperature measurements consists in heating of a sensitive element of a temperature sensor by passing current pulses on two different levels of reactor power. Pulses are supplied in series, at least two pulses with different durations and/or current values. Duration of each pulse exceeds the value of inertia constant. Strength of pulses, temperature of the temperature sensor prior to pulse supply and values of temperature amplitude are recorded immediately after pulses are switched off. Error of temperature measurements is calculated by the formula.
EFFECT: possible determination of a correction for measured temperature on the reactor in operation at any stage of campaign with different fuel loads, and therefore, improvement of accuracy of in-core control of coolant temperature.
3 cl, 1 dwg
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