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A reactor scram or trip is initiated automatically if certain reactor operating conditions depart from their normal range of values, which could mean that if not acted on, reactor fuel damage could result. The reason for the scram could be to protect against release of activity from the reactor, or it could be to protect the investment against damage. The actual parameters selected depend on the type of reactor, and obviously water reactors and gas-cooled reactors will have different operating envelopes, but I expect you are interested mainly in PWR and BWR designs.
Parameters chosen for scram purposes are neutron flux (ie reactor neutron power), reactor cooling sytem temperature, reactor cooling system pressure, reactor cooling system flow, steam pressure, and comparison of feedwater flow and steam flow.
Instruments measuring these parameters feed into safety circuits which when actuated cause the control rods to be inserted, and maybe other actions. Since shutting down a large reactor involves a large loss of income for the owners, and it can take a couple of days to get the plant back up to full power, unnecessary scrams are to be avoided, and the safety systems are designed so that no single instrument or component failure will cause a trip. This is done by having a voting system, with 3 or 4 identical instruments for each parameter, and only acting if 2 out of 3, or 2 out of 4, give the same indication.
See link below for more information
What else can I help you with?
Can SCRAM device detect marijuana?
The scram can detect t.h.c in the air when your around it. my parole officer asked me if i was smoking marijuana and luckily i wasnt but the moniter detected it.
Does the scram ankle monitor detect marijuana?
The SCRAM ankle monitor is typically designed to detect alcohol consumption by analyzing the wearer's sweat. It is unlikely to specifically detect marijuana use, as cannabis metabolites are not typically measured by this device.
Does a scram bracelet detect meth?
No. But if you have a SCRAM, you may be tested randomly for drugs and because you have a SCRAM, you are already in trouble and you don't need more.
Does the scram bracelet detect inhalants?
The SCRAM bracelet is designed to detect alcohol consumption through the skin. It is not specifically designed to detect inhalants or other substances.
Does scram bracelet detect ecstasy?
No
Can scram detect weed?
SCRAM systems are typically designed to detect alcohol consumption rather than drugs like weed. However, some advanced systems may have the capability to detect certain drugs through sweat analysis. It is best to consult with the specific manufacturer or supplier for more information on the capabilities of their particular device.
Does the SCRAM Bracelet detect marijuana use?
No, the SCRAM bracelet is designed to detect alcohol consumption through skin sweat. It does not detect drug use, including marijuana.
Does scram detect nail polish?
Yes, SCRAM devices can detect nail polish, particularly if it contains certain chemicals that may interfere with the device's alcohol detection capabilities. This is because SCRAM monitors alcohol content through transdermal measurements, and substances like nail polish can create a barrier that affects the readings. However, the primary purpose of SCRAM is to measure alcohol consumption, so while nail polish may influence results, it is not specifically designed to detect nail polish itself.
Can scram pick up 5 percent of alcohol?
Yes, a scram device can detect alcohol levels, including picking up as low as 0.02% blood alcohol concentration (BAC), which is equivalent to about 0.5 grams of alcohol per liter of blood. However, a scram device typically measures much lower levels than 5% alcohol, which is significantly higher than the legal driving limit in most jurisdictions. Therefore, while a scram can detect alcohol consumption, it is not designed to measure high concentrations like 5% alcohol.
Can a scram alcohol monitoring detect marijuana?
No, a SCRAM (Secure Continuous Remote Alcohol Monitor) device is specifically designed to detect alcohol consumption through sweat. It does not measure the presence of marijuana or its metabolites. For marijuana detection, other types of drug testing methods, such as urine or blood tests, would be required.
Can scram detect drugs?
No
Can scram cam detect meth?
Meth bew?
