Automatic Quench Analysis Components

(BKh)

Channel 
Group
Channel Analysis
Group Analysis
Resulting Data
Alerts
Comment
TR
Trigger group
Check on trigger condition:
V(-Delay) > Vthreshold
V(0)           > Vthreshold
List triggered channels, 
the primary one is first
Triggered channel list 
with parameters
None
V(t), t is time,
t=0 for trigger
VT
Voltage Taps
(differential)
  • Noise evaluation
  • Quench signal detection
  • Quench attributes: 
  • precursor? inductivity?
  • Channel's Q-time and shape parameters
  • Active channels list
  • Primary channel identif.
  • Quench transv. location
  • Final time and shape quench parameters
  •  Quench parameters
  •  Active channel list with parameters
  • Quench should or should not occur for given test type
  • Quench is outside of main coil(Warn)
  •  
    QA
    Quench antenna
  • Noise evaluation
  • Quench signal detection
  • Quench precursor?
  • Active channels list
  • Primary channel identif.
  • Quench longit. location
  • Quench longit. location
  • Active channel list with parameters
  • None

     DVT
    Direct
    Voltage Taps
  • Noise evaluation
  • Oscillation evaluation
  • Check max values against criteria
  •  Collect info and generate alerts
     DVT channel list with  parameters
  • Dangerous oscillations after quench 
  •  Crucial against possible magnet crash
    Current related channels
  • From Current graph, find Q, Tr, Max points and calculate decay parameters and MIITS
  • Calibrate Hall sensor and get the same info
  • Get Vtotal graph
  • Decide the use of Hall sensors or Current's one for calculated parameters
  • Field parameters
  • Tspot
  • Estored, Eextracted
  • Field decay parameters
  • Tspot
  • MIITS, Estored, Eextracted
  • Abnormally high current for test type 'q'
  • MIITS exeeds (or too close to) the limit for given current

  • TG
    Temperature Gauges
    T values at Q, Tr  and Max points
    Choose main or spare gauge
    T values at Q, Tr and Max points
    None

     QH
    Quench Heaters
  • Discharge parameters taken from V anf I measurements 
  • Momental discharge speed graphs and value jumps for V & I
  • Momental R & C value graphs and their initial values
  • Check the value of every parameter to be in specified interval
  • Collect info
  • check the timing for given test type
  • generate alerts for incorrect parameter values
  • QH channel list with parameters
    • QH not charged
    • QH not discharged
    • QH-s timing error for given test type
    • QH parameter error