SYSTEM OF REGULATION OF DRAGAGE OF A BAR OF REGULATION OF A NUCLEAR REACTOR AND PROCEDURE OF REGULATION OF THE DISPLACEMENT OF THE BAR OF REGULATION.

摘要

A control bar control regulation system (70) for regulating a nuclear reactor, the nuclear reactor comprising a plurality of regulation bars (54), said regulation system comprising: a regulation processor (72); a regulator bar (58) configured to be connected to a regulation bar; and a hydraulic regulator unit (78) connected to said regulator rod drive, said hydraulic regulator unit comprising at least one solenoid (92), at least one directional regulating valve, and at least one transponder card (76) , each solenoid being connected to a valve of said at least one directional regulation valve, each transponder card being functionally coupled to said regulation processor and adapted to: receive commands from said regulation processor; energize an appropriate solenoid when it receives a command from said regulation processor; detecting a fault in the regulation circuitry of said transponder card; send the fault alarm to said regulation processor; and characterized by means (words of CMD) to suppress the power of a solenoid during a fault episode during a fault episode of the regulation circuitry when there is no command to energize said solenoid.