electrical glitch 06:02
DESCRIPTION
Electrical Glitch 06:02. Electrical glitch is seen on all circuits connected to the 18kV (RD1.LR1, RD1.LR5, RD34.LR3, RD34.LR7). FMCM signal vs Threshold. RD1.LR1. RD1.LR5. RD34.LR3. RD34.LR7. [11]. 2. Converter Current & Voltage. Δ I/I=8.95E-4. Δ V~5V. RD1.LR5. Δ I/I=6.3E-4. - PowerPoint PPT PresentationTRANSCRIPT
[email protected] ITER – Machine Protection
Electrical Glitch 06:02Electrical glitch is seen on all circuits connected to the 18kV (RD1.LR1, RD1.LR5, RD34.LR3, RD34.LR7)
[email protected] ITER – Machine Protection
FMCM signal vs Threshold
2
[11]
RD1.LR5 RD1.LR1
RD34.LR3RD34.LR7
[email protected] ITER – Machine Protection
Converter Current & Voltage
3
[11]
RD1.LR5
RD34.LR3
ΔI/I=6.3E-4
ΔI/I=8.95E-4
ΔV~5V
ΔV~5V
[email protected] ITER – Machine Protection
Protection requirements
4
Beam dump(s) are consistent with defined protection requirements (for all 2011 triggers)
Reminder: FMCMs are protecting the beams, not the powering equipment!
The fact that no power converters trip during the perturbation does not mean that the beam dump could be avoided by increased FMCM thresholds (current changes induce orbit
movements and eventually dumps on losses