System and method for simultaneously testing a plurality of cont

Details System and method for simultaneously testing a plurality of cont System and method for simultaneously testing a plurality of cont

1993-12-22

1995-04-18

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

Position detection

376240, 376259, G21C 1700

Patent

active

054085080

ABSTRACT:
A system for simultaneously testing at least two any control rod clusters contained within a reactor vessel, the system comprising a control rod drive mechanism attached to the control rod clusters for retracting the control rod clusters within said reactor vessel to a position suitable for testing. Electrical power means connected to the control rod drive mechanism for supplying electrical power to the control rod drive mechanism and for terminating the power to the control rod drive mechanism and, when terminated, causing said all said control rod clusters to fall into the reactor vessel. A rod position indicator attached to the control rod drive mechanism for monitoring the position of the control rod clusters; and computing means operatively connected to the rod position indicator and receiving a signal representing the fall time of each control rod cluster for generating an elapsed time profile of all the control rod clusters.

REFERENCES:
patent: 4073684 (1978-02-01), Cepkauskas
patent: 4125432 (1978-11-01), Brookes, Jr. et al.
patent: 4661310 (1987-04-01), Cook et al.
patent: 4663576 (1987-05-01), Scarlola et al.
patent: 4696785 (1987-09-01), Cook et al.
patent: 5006301 (1991-04-01), Lexa

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