Electrical Discharge Circuit for CNGS Horn & Reflector PH/DT1 Group Meeting, 23 October 2007 Gilles...
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Transcript of Electrical Discharge Circuit for CNGS Horn & Reflector PH/DT1 Group Meeting, 23 October 2007 Gilles...
Electrical Discharge CircuitElectrical Discharge Circuitfor CNGS Horn & Reflectorfor CNGS Horn & Reflector
PH/DT1 PH/DT1 Group Meeting, 23 October 2007Group Meeting, 23 October 2007
Gilles MAIRE PH/DT1-ICGilles MAIRE PH/DT1-ICSection LeaderSection Leader
PhysicsPhysics
At CERN• Protons extracted in point 4 of SPS.• Pions & Kaons after Target.• Muons Neutrinos after Decay Tunnel.
At Gran Sasso• Opera Detector.
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 1
Horn and ReflectorHorn and Reflector
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 2
IntroductionIntroductionHorn and Reflector (Load)Horn and Reflector (Load)
•7 m long (approx.)
• 1.6 tonne (approx.)
50ms t
I Every 6s
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 3
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 4
Horn PictureHorn Picture
Electrical CircuitElectrical Circuit
Pulse 1
Pulse 2
Delay 50msStart
ChargingStop
Charging
ThyristorsBridge
TR
DiodesBridge Capa
Capa
ThyristorsDischarge
ThyristorsDischarge
DischargeCircuit 1
DischargeCircuit 2
Charging Unit10kV - 20A
Pol
arity
Cha
nger
Ear
thin
g
HORNTR
Experimental Area
PowerCables
(~1000m)
I
t
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 6
Unit HORN System REFLECTOR System
Load Peak current kA 150 180
Transformer ratio 16 32
Primary current peak A 9375 5625
Load inductance µH 2,7 X 16 X 16 = 691 1,5 X 32 X 32 = 1540
Total inductance with 4 cables µH 1210 2046
Load resistance m 0,6 X 16 X 16 = 154 0,21 X 32 X 32 = 215
Total resistance with 4 cables m 328 495
Total capacitance for one pulse µF 4080 4080
Pulse duration ms 7,5 10
Charging voltage V 7700 6300
Total stored energy kJ 2 X 119 = 238 2 X 80 = 160
Load max. voltage V 280 150
Mean power dissipated by current only (2 pulses) kW 16 10,5
Total power dissipated (with beam) kW 26 16,5
Water flow for delta T=5C l/min 70 70
Pressure bar 1,2 1,2
Electrical ParametersElectrical Parameters
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 5
HV Capa.
Th. Disch.
TR. Pulse
General ViewGeneral View
Horn and ReflectorIn Target Chamber
ChargingPower Supply in surface
Power cables (~1000m) along Access Galleries
Pulse TransformerIn Service GalleryStrip Lines
from Transformers to Horn & Reflector
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 7
Layout in BHA4Layout in BHA4
3
R2 CAPACITOR BANK
1142
Ø800
MA
IN D
OO
R: 6
60SUI8
BB4
INSTALLATION LAYOUT PROPOSITION IN BHA4 FOR CNGS HORNS POWER SYSTEMS AND CONTROLS
S. Rangod07/10/2003
R1 CAPACITOR BANKS
Dimensions in cm
BHA4
CH
AR
GIN
G S
UP
PLY
R1
Dischargecircuit 2-1
CH
AR
GIN
G S
UP
PLY
R2
Existing ventilation unit
Reserved space for UPS
Reserved space for UPS
Recup 2-1Capacitor cabinet R2-1/1
Capacitor cabinet R2-2/1
Capacitor cabinet R2-3/1
Capacitor cabinet R2-1/2
Capacitor cabinet R2-2/2
Capacitor cabinet R2-3/2
Recup 2-2 Dischargecircuit 2-2
Recup 1-1
Recup 1-2
Capacitor cabinet R1-1/1
Capacitor cabinet R1-2/1
Capacitor cabinet R1-3/1Capacitor cabinet R1-3/2
Capacitor cabinet R1-2/2
Capacitor cabinet R1-1/2
Dischargecircuit 1-1
Dischargecircuit 1-2
80
85
115
7207979
CO
NT
RO
LS6
66
(to
be
ch
eck
ed)
Ground + Polarity
Ground + Polarity (No false floor)
8018032323
80
1365
5315
80
12060
60 8012
016
0
100
360
390
2 hours fire-resistant walls (height: 3 m)
2 hours fire-resistant doors (nb: 4)
Electrical box to be shifted 20 cm
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 8
Cross section in undergroundCross section in underground
4th NBI, 7 - 11 November 2003 at KEK by Gilles MAIRE 9
TransformerLoad
Charging Power SupplyCharging Power Supply
Old ElectronicNew Electronic AB/PO Group
24U
6U
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 10
Charging Power SupplyCharging Power Supply
Need to increase charging voltage to 10kV.• Buy new transformer (LV/HV), call for tender for 3 units for a cost of
30kchf.
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 11
Charging Power SupplyCharging Power Supply
Old
New
New HV Rectifier Diode• Need to increase charging
voltage. • Call for tender for 30 unitsfor a cost of 30kchf.
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 12
Results• Space saving. Number of
diodes divided by 2.
Capacitors DischargeCapacitors Discharge
Rack with New capacitors
New capacitors• 12 racks with a total of 48 capacitors.• Call for tender for a cost of 350kchf.
Results• Space saving. Number of racks divided by 3.• Important cost saving (300kchf) for
infrastructure and cabling.
Rack with WANF capacitors
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 13
Discharge CircuitDischarge Circuit
Old
New
New Inductance• Call for tender for 12 unitsfor a cost of 40kchf.
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 14
Results• Space saving. Number of
inductance divided by 6.
Thyristor Switches (20kV, 18kA)Thyristor Switches (20kV, 18kA)
New Th. Discharge•All Th. Switches needed have been bought and delivered by ARCEL (FR).• 6 units for 150 kchf.• 3 thyristors in series, sharing resistor, RC snubber and impulse transformer.
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 15
Pulse TransformersPulse Transformers
Pulse Transformer • Reusing WANF Transformers ratio 32. • Adaptation ratio 16 for Horn.• Cost saving 450kchf.
Ratio 16
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 16
18kV Power Cables18kV Power Cables
Power cables• Call for tender for 6 X 1km (4X95mm2), have been bought and delivered by PIRELLI. Cost of 350kchf.• 80kchf for laying.
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 17
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 18
Connection in BHA4 Junction in ECA4
Connection in TSG
Electrical & Continuity Test 20th January 2006
18kV Power Cables18kV Power CablesConnectionConnection
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 19
ControlControl
Designed by Sylvain RAVAT EP/TA3
latigid
PVSS Supervisorin BHA4
DISCHARGE CIRCUIT
POWER CONVERTER
Designed by Sylvain RAVAT EP/TA3
Control Room supervision
VME, TG8,MIL1553, G64
POW protocol - CMWUNICOSCESARLoggingAlarms
Horn’s interlocks
Interlocks
Ethernet Network
EARTH & POLARITY
Interlocks
REMOTE I/O
FIPBus
Surface BHA4 Underground
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 20
Control in Surface (BHA4)Control in Surface (BHA4)
PLC Rack in BHA4
Schneider Unity. UNICOS. Programming Process. Hardware interlocks.
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 21
Control in UndergroundControl in Underground
Remote I/O in TSG Instrumentation of Cooling Unit in TSG
FIP I/O and conditioning signal. Cooling Unit.
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 22
PVSS Electrical ViewPVSS Electrical View
Designed by Sylvain RAVAT EP/TA3
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 23
PVSS Hydraulic ViewPVSS Hydraulic View
Designed by Sylvain RAVAT EP/TA3
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 24
Hydraulic ViewHydraulic View
Designed by Sylvain RAVAT EP/TA3
Trending. Historical. Alarm.
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 25
Commissioning in May 2006 Commissioning in May 2006
Designed by Sylvain RAVAT EP/TA3
50ms
150kA
180kA
50msDouble pulse for Horn. Time pulse of 6,5ms conform with simulation
Double pulse for Reflector. Time pulse of 10ms conform with simulation
PH/DT1 Group Meeting, 23 October2007 by Gilles MAIRE PH/DT1-IC 26