MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.
-
Upload
magdalen-bailey -
Category
Documents
-
view
222 -
download
6
Transcript of MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.
![Page 1: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/1.jpg)
MKD stack upgrade
MKD generator meetingViliam Senaj23/06/2015
![Page 2: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/2.jpg)
Effect of return rod displacement
RR displacement [mm] 0Present
situation
5 10 15 20
Inductance stack [nH] 132 141 149 157 165
Inductance MKD total [nH] 2.682 2.691 2.699 2.707 2.715
Voltage @ 7 TeV [kV] 29 29.06 29.1 29.14 29.19
Emax [MV/m] 2.9 2.53 1.91 1.59 1.4
Trise increase [ns] 0 +4 + 8 +12 + 15
![Page 3: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/3.jpg)
Solution with return rods displaced by 20 mm
• Return rod displaced by 20 mm• Araldite insulation of RR• Modified top insulator – upper tube
included• Reduced diameter of 4 upper HV
deflectors and full insulation by araldite• HV contact insulated by araldite• Modified 4 top snubber capacitors –
araldite tube around instead of HV deflectors
![Page 4: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/4.jpg)
Solution with return rods displaced by 20 mm
![Page 5: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/5.jpg)
Time plan
• Drawing of machining plans ~ 2 weeks• Procurement of raw material for 3 switches ~ 2 months • Machinning ~ 4 weeks• Assembly ~ 3 days • Test of single stack in HV case up to 40 kV ~ 1 week• Test inside generator ~ 6 months
![Page 6: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/6.jpg)
Magnet current @29 kV o vs 20 mm displacement (132 vs 165 nH)
![Page 7: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/7.jpg)
Main dividers 2 x 100 MΩ
![Page 8: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/8.jpg)
Main dividers 2 x 100 MΩ
![Page 9: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/9.jpg)
Main dividers 2 x 100 MΩ - solution
![Page 10: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/10.jpg)
Main dividers 2 x 100 MΩ - solution
![Page 11: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/11.jpg)
HV divider 10 x 5 MΩ, top deflector
![Page 12: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/12.jpg)
HV divider 10 x 5 MΩ – solution
![Page 13: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/13.jpg)
HV contact region - today
![Page 14: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/14.jpg)
HV contact region - solution
![Page 15: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/15.jpg)
Final solution
![Page 16: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/16.jpg)
MKD E/B2 freewheel signal
![Page 17: MKD stack upgrade MKD generator meeting Viliam Senaj 23/06/2015.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649dbc5503460f94aae023/html5/thumbnails/17.jpg)
MKD schematics