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CHAINE ARRET URGENCE [2 records]
Record 1 - internal organization data 2011-12-12
Record 1, English
Record 1, Subject field(s)
- Nuclear Plant Safety
- Nuclear Fission Reactors
Record 1, Main entry term, English
- load reactor trip channel 1, record 1, English, load%20reactor%20trip%20channel
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Trips employing auxiliary trip units include the Loss of Load trip and the APD – High trip. The Loss of Load trip is a contact input from the Electro Hydraulic Control System control oil pressure on each of the four high pressure stop valves. … 10. Loss of Load. The Loss of Load (turbine stop valve (TSV) control oil pressure) trip is anticipatory for the loss of heat removal capabilities of the secondary system following a turbine trip. The Loss of Load trip prevents lifting the pressurizer saftey valves, PORVs and MSSVs in the event of a turbine generator trip. Thus, the trip minimizes the pressure and temperature transients on the reactor by initiating a trip well before reaching the Pressurizer Pressure – High trip and pressurizer safety valve setpoints. The four RPS Loss of Load reactor trip channels receive their input from sensors mounted on the high pressure TSV actuators. Since there are four high pressure TSVs, one actuator per valve and one sensor per actuator, each sensor sends its signal to a different RPS channel. When the turbine trips, control oil is dumped from the high pressure TSVs. When the control oil pressure drops to the appropriate setpoint, a reactor trip signal is generated. 1, record 1, English, - load%20reactor%20trip%20channel
Record 1, French
Record 1, Domaine(s)
- Sûreté des centrales nucléaires
- Réacteurs nucléaires de fission
Record 1, Main entry term, French
- chaîne d’urgence
1, record 1, French, cha%C3%AEne%20d%26rsquo%3Burgence
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- chaîne d’arrêt d’urgence 2, record 1, French, cha%C3%AEne%20d%26rsquo%3Barr%C3%AAt%20d%26rsquo%3Burgence
correct, feminine noun
- chaîne d’arrêt automatique 3, record 1, French, cha%C3%AEne%20d%26rsquo%3Barr%C3%AAt%20automatique
feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Ensemble constitué d’appareils de mesure, de systèmes de conditionnement et de traitement des signaux de systèmes, de préparation et d’émission des ordres et d’actionneurs permettant de déclencher l’arrêt d’urgence d’un réacteur nucléaire. 1, record 1, French, - cha%C3%AEne%20d%26rsquo%3Burgence
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2010-02-26
Record 2, English
Record 2, Subject field(s)
- Nuclear Fission Reactors
Record 2, Main entry term, English
- trip channel
1, record 2, English, trip%20channel
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Improved on-power maintenance and testing, additional redundancy in actuating signals for trip channels, reduced risk of spurious trips and overall increased reliability, through use of quadrant-based layout for safety and heat sink systems. 1, record 2, English, - trip%20channel
Record 2, French
Record 2, Domaine(s)
- Réacteurs nucléaires de fission
Record 2, Main entry term, French
- chaîne d'arrêt d'urgence
1, record 2, French, cha%C3%AEne%20d%27arr%C3%AAt%20d%27urgence
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Une amélioration de l'entretien et des essais en régime de puissance, une redondance supplémentaire via le déclenchement de signaux pour les chaînes d'arrêt d'urgence, une réduction des risques d'arrêt intempestif et une amélioration générale de la fiabilité grâce à un aménagement basé sur des quadrants pour les systèmes de sécurité et de source froide. 1, record 2, French, - cha%C3%AEne%20d%27arr%C3%AAt%20d%27urgence
Record 2, Spanish
Record 2, Textual support, Spanish
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