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U.S. Department of Energy
Office of Scientific and Technical Information

Control rod drive mechanism stator loss of coolant test

Technical Report ·
DOI:https://doi.org/10.2172/7108436· OSTI ID:7108436

This report documents the stator loss of coolant test conducted at HEDL on the lead unit Control Rod Drive Mechanism (CRDM) in February, 1977. The purpose of the test was to demonstrate scram capability of the CRDM with an uncooled stator and to obtain a time versus temperature curve of an uncooled stator under power. Brief descriptions of the test, hardware used, and results obtained are presented in the report. The test demonstrated that the CRDM could be successfully scrammed with no anomalies in both the two-phase and three-phase stator winding hold conditions after the respective equilibrium stator temperatures had been obtained with no stator coolant.

Research Organization:
Hanford Engineering Development Lab., Richland, WA (USA)
DOE Contract Number:
EY-76-C-14-2170
OSTI ID:
7108436
Report Number(s):
HEDL-TME-77-31
Country of Publication:
United States
Language:
English