LOT 201.26 Vibration & Loose Parts Monitoring

Question 1

• LOT 201.26 Vibration & Loose Parts Monitoring*
• • *

How is vibration monitoring accomplished in the RCS?

Answer 1

• *Detectors use Piezo-Electric effect**
• Pressure felt on crystal generates a voltage*

Question 2

• LOT 201.26 Vibration & Loose Parts Monitoring*
• • *

Where is the Loose Parts Monitoring Cabinet?

Answer 2

Left of RM-23

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Question 3

• LOT 201.26 Vibration & Loose Parts Monitoring*
• • *

How many sensors are there in the vibration / loose parts monitoring system?

Answer 3

12 Sensors

Lower Reactor Vessel Head (2)

Upper Vessel Head (2)

S/Gs (2 per S/G)

• Hot Leg Penetration
• Intermediate Leg Penetration