INSTRUMENTATION FOR A SUBCRITICAL HOMOGENEOUS SUSPENSION REACTOR. IV. THE SAFETY CIRCUITS

Journal Article · Sat Mar 12 04:00:00 EST 1960 · Philips Technical Review (Netherlands)

OSTI ID:4095237

Schijff, F J

The KEMA subcritical suspension reactor contains three safety rods of boron carbide, which are suspended from electromagnets, the energizing current for which flows through a number of relay contacts in series. If one of the relays cuts out, the rods drop and the reactor is stopped. Each of the relays receives its energizing current via a thyratron, which can ignite only when its input voltage Vi is between --0.20 and --1.6 v, corresponding, respectively, to the lower and upper limits of the quantities to which the safety system is required to respond (neutron flux, reactor period, temperature, suspension flow rate, etc.). The voltage Vt is taken from the channels used for monitoring these quantities. Measures are taken to make the system "fail safe." (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-15-010429
• OSTI ID: 4095237
• Journal Information: Philips Technical Review (Netherlands), Journal Name: Philips Technical Review (Netherlands) Vol. Vol: 21; ISSN PTREA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BORON CARBIDES
CONTROL ELEMENTS
CONTROL SYSTEMS
CRITICALITY
ELECTROMAGNETISM
FLUID FLOW
FUEL SUSPENSIONS
HOMOGENEOUS REACTORS
INSTRUMENTS
MULTIPLICATION FACTORS
NETHERLANDS
NEUTRON FLUX
REACTIVITY
REACTOR SAFETY
REACTOR TECHNOLOGY
REACTORS
RELAYS
RODS
SAFETY
SUSPOP
TEMPERATURE