MNP33 / Spectrometer |
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MNP33 (New coil) | |
NR31-07 + ND31-01 | ALGE |
Power In | 3 ~ 400V/1775A x2 |
Power Out | 2500A/640V |
Converter Type | Thyristors 12P |
Control type | Front end VME |
MNP33 (Old coil) | |
NR22-56 + NR22-57 + ND21-60 | ALGE |
Power In | 3 ~ 400V/750A x3 |
Power Out | 1500A/700V |
Converter Type | Thyristors 12P |
Control type | Front end VME |
1st Intervention | ![]() |
Responsibles: | Yves GAILLARD |
Xavier GENILLON |
MNP33 magnet is located on K12 beam line in ECN3 underground zone.
This magnet is composed of 2 coils:
NR31-07 associated with ND31-01 supplies the new coil.
NR22/56, NR22/57 and ND21-60 mounted in serie supplies the old coil.
MNP33 power converter architecture
MNP33 magnet is supplied by standard R31, D31, R22 and D21 power converters.
CESAR Software (CESAR GUI will not work with Java higher than 1.6.0_18) is used to control MNP33 power converters.
A special CESAR GUI called "MNP33 control" allows a SET CURRENT on both NR22-56 and NR31-07. The program takes care of sending the required value on the NR22-056 and send double the value requested on the NR31-07.
MNP33 CESAR Graphical User Interface
The regulation part is standard.
The red buttons on each coil and the equipment stops ("potelets" installed around the magnet) are wired in series to trip the two converters in case of action on one of them.
NR22-56 and NR22-57 DC cabling
NR31-07 DC cabling
New coil (NR31-07) + DC cables: R= 0.19 ohm
Old coil (NR22-56) + DC cables: R= 0.484 ohm
MNP33 power converters are installed in North area: