Scram - Wikipedia, the free encyclopedia
A scram or SCRAM is an emergency shutdown of a nuclear reactor – though the term has been extended to cover shutdowns of other complex operations, such as server farms and even large model railroa...
en.wikipedia.org/wiki/Scram
"A scram or SCRAM is an emergency shutdown of a nuclear reactor"A manual Scram at K-State, it was done to show what is done if the reactor need to ...
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Subject: Reactor scram!!! capt soap 7/10/2005 7:37:19 PM ... I spent 28 months aboard a usn ssn during the late 70's. One of the most scarcest time aboard the boat was reactor scram. ... At least once a week we would have a reactor scram, the boat would be sinking deeper and deeper while trying to get the reactor back...
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Webster defines Scram as “A rapid emergency shutdown of a nuclear reactor.” To most of us in the nuclear business this term means “to place the reactor in a safe condition.”...
www.ornl.gov/reporter/no19/scram.htm www.ornl.gov/reporter/no19/scram.htm
THE ANATOMY of a REACTOR SCRAM ... Reactor scram is used for rapid reactor shutdown ... the ultimate safety action used to prevent reactor core damage in abnormal or emergency situations, as typically associated with an over-power condition or an under-cooling condition.
www.pipeline.com/~rstater/nuke1zhh.html
In any reactor, a SCRAM is achieved by a large insertion of negative reactivity. In light water reactors, this is achieved by inserting neutron-absorbing control rods into the core, although the mechanism by which rods are inserted depends on the type of reactor.
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Besides the reactor scram, the following automatic actions were initiated during the event: main steam isolation valve actuation, turbine trip, feedwater pump trip, containment isolation, standby gas treatment system start, and reactor water clean up isolation.
www.world-nuclear-news.org/nerliste.aspx?id=11724
81-25: OPEN EQUALIZING VALVE OF DIFFERENTIAL PRESSURE TRANSMITTER CAUSES REACTOR SCRAM AND LOSS OF REDUNDANT SAFETY SIGNALS Description of Circumstances: On March 13, 1981, the Tennessee Valley Authority reported to the NRC that a scram occurred at the Browns Ferry Unit 2 facility as a result of an open equalizing...
www.nrc.gov/reading-rm/doc-collections/gen-comm/info-no... www.nrc.gov/reading-rm/doc-collections/gen-comm/info-notices/1981/in81025.html
You can order a single issue or an individual article, as well as view the table of contents or article abstract by clicking on the volume number, then the issue number in the ... Continuous withdrawal of CPS control rods without reactor scram leads to significant reactivity and power changes in the reactor core.
www.begellhouse.com/journals/49b4a705043d807c,2c324f407... www.begellhouse.com/journals/49b4a705043d807c,2c324f407df690a8,5d765f4036d3505c.html
Definition of reactor scram with German, Dutch, French, Italian, and Spanish translations and search. Pronunciation sound files. ... An automatic safety feature of nuclear reactors where the control rods are automatically dropped into the reactor core when any of several emergency conditions are reached.
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