NAVAL RESEARCH LABORATORY RESEARCH REACTOR. PART IV. CONTROL SYSTEM

Technical Report · Mon Nov 25 04:00:00 EST 1957

OSTI ID:4339500

Young, M P; Wall, G F

The design of the NRL Research Reactor control system was guided by the desire for extreme safety and versatility of operation. The electronic instrumentation for control includes a startup channel, a logarithmic signal channel, a linear signal channel, a gamma channel, and two safety channels. Duplicate equipment is used extensively throughout the control system. This permits load sharing when all electronlc units are operative; or, when a single unit fails, the operative unit can take over the load until the other one is repaired or replaced, without shutting down the reactor. There are numerous backup devices for automatic shutdown in case of reactor runaway, extensive monitoring and warning systems to anticipate and correct unsafe conditions automatically, or to allow the operator to prevent unsafe conditions, and numerous interlocks to prevent unsafe sequences of operation which might arise from inadvertent action of the operator or failure of critical instruments. For flexibility of operation as a research tool, a choice of control instruments and interlocks is available for differeat modes of operation. All the electronic equipment in the control system was fabricated in NRL shops, (auth)

• Research Organization: Naval Research Lab., Washington, D.C.
• NSA Number: NSA-12-009415
• OSTI ID: 4339500
• Report Number(s): NRL-5077
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CONTROL
CONTROL SYSTEMS
ELECTRONIC EQUIPMENT
FABRICATION
FAILURES
GAMMA RADIATION
INSTRUMENTS
MONITORING
NRR
PHYSICS
PLANNING
REACTOR FUELING
REACTOR SAFETY
RESEARCH REACTORS
SAFETY
SHUTDOWN
STARTUP