Transcript Slides - Agenda INFN

Power Supplies
EMI
Cabling
Elimed - Elimaia
Technical Workshop
Harfa - Prague 9 June 2015
Mario Sedita - INFN-LNS (Italy) - [email protected]
1
Magnetic Elements Power Supplies
2
Magnetic Elements (electrical characteristics related to impedance values to
be confirmed from constructor)
4 Dipoles 315A/35V
2 Quadrupoles 200A/30V
2 Steerers 10A/±20V. Each Steerer requires, for normal working, two power supplies as is based on two
coils for the x axis and two coils for the y axis.
Mario Sedita - INFN-LNS (Italy) - [email protected]
Power Supplies
Characteristics
A very general introduction
Mario Sedita - INFN-LNS (Italy) - [email protected]
3
Dipoles and Quadrupoles PS Electrical Characteristics
and Cabling estimated
4
DC
Magnetic
Element
Max V
magnet
Max I
magnet
Power
Magnet
(W)
Imag.
+
I cycling 20%
Vout
+
Vdrop
Cable
section
FG7H2R
Total Power
(W)
Dipole
35
315
11.025
378
40
120 mm2
15.120
Quadrupole
30
220
6.600
264
35
100 mm2
9.240
Steerer
2 x 20
10
200
12
24
4mm2
2 x 288
AC
Magnetic
Element
Power Total
(W)
Power
AC kV/A
I phase AC
A
Cable
mm2
Cable
Type
Dipole
15.120
22.680
33
16
FG7H2R
4x16 mm2
Quadrupole
9.240
13.860
20
10
FG7H2R
4x10 mm2
Steerer
2 x 288
865
4
4
FG7H2R
3x4 mm2
Mario Sedita - INFN-LNS (Italy) - [email protected]
2.Family Magnetic elements in series?
3.Regulationand
Topology
(Linear, Switching)?PS General Characteristics
Dipoles
Quadrupoles
to4.Magnetic
be confirmed
Field Loop or Current Loop?
5
5.Stability (after a warm-up time ≤ 30 min):
Vs. Time: (examples)
Over 30 min ≤ 50 ppm
Over 8 hours ≤ 100 ppm
Vs. Temperature:
Environment ≤ 50 ppm/°C
Cooling Water ≤ 50 ppm/°C
Vs. mains variation of ± 10% slow, ± 1% fast: ≤ 10 ppm
Vs. load variation of 10%: ≤ 100 ppm
6.Voltage/Current Rise Time TBD.
7.Output Current Ripple of ± * mA?
8.Cooling water 20 °C ± 2 °C?
9.Conductivity µS?
Mario Sedita - INFN-LNS (Italy) - [email protected]
Steerers PS General Characteristics
to be confirmed
6
1.Normal Operation Range 0 to 100% f.s. in both positive or negative polarity.
2.Cooling water, if necessary, 20 °C ± 2 °C
3.Cooling Water Pressure 3.5÷5 Bar
4.Output Voltage Ripple ≤ 10 mV pp.
5.Output Offset current at 0 Amp. must be ≤ 1 mAmp.
6.Linear regulation topology with series transistor bank.
7.Accuracy 1×10-3
8.Resolution 12 bit.
9.Stability class ± 100 ppm (8 hours).
10. Output current thermal drift 100 ppm/°C.
Mario Sedita - INFN-LNS (Italy) - [email protected]
Power
Supplies Interlock System main characteristics
4.Load mismatch.
5.77Air-flow failure (if used).
6.Water flow failure.
7.SCR over-temperature.
8.Rectifier transformer over-temperature.
9.SCR failure (fast fuse).
10.Filter choke over-temperature.
11.Cabinet over-temperature.
12.Cabinet door open.
13.Transistor bank over-current.
Mario Sedita - INFN-LNS (Italy) - [email protected]
2.SET DC ON/OFF: the power supply operational mode is switched on/off.
Power Supplies Control System Main Characteristics
3.SET CURRENT: the DAC is set with the properly accuracy.
88
4.SET POLARITY: changes the current direction if foreseen on the power supply.
5.READ CURRENT ADC: the actual value is displayed with the proper resolution.
6.READ VOLTAGE ADC: the actual value is displayed with the proper resolution.
7.READ DAC: the actual current set point is displayed with the proper resolution.
8.READ LIMITS: the full voltage/current range of the power supply is displayed.
9.READ STATUS: the actual power supply status is displayed.
10.READ ALARM: the actual power supply interlocks status is displayed.
11.RESET: resume the interlock system status.
12.LOCAL/REMOTE: a key switch on the front panel to enable or disable the local control. The key switch defines the status of the front panel only. In LOCAL position all
setting
commands
are processed
and forwarded to the addressed power supply. In REMOTE position only reading access is possible for any power supply
Mario Sedita
- INFN-LNS (Italy)
- [email protected]
Power Supplies Applicable Standards
1.CEI9 11-1 Distribution system of electric power
2.CEI 14-4 (CENELEC HD 398,IEC 76) Power transformers
3.CEI 17-5 (CENELEC HD 418,IEC 157) L.V. circuit breakers
4.CEI 17-11 (CENELEC HD 422,IEC 408) L.V. switches
5.CEI 17-12 (CENELEC HD 420,IEC 337) Auxiliary equipment
6.CEI 17-13 (CENELEC EN 60439,IEC 439) L.V. assemblies
7.CEI 20-29 (CENELEC HD 383,IEC 228) Insulated cables
8.CEI 20-38 Fire retardant insulated cables
9.CEI 22-5 (IEC 478) Power supplies, dc output
10.CEI 32-1 (CENELEC EN 60269-1,IEC 269) Low voltage fuses
11.CEI 38-1 (IEC 185) Current transformer
12.CEI 41-1 (IEC 255) Electrical relays
Mario Sedita - INFN-LNS (Italy) - [email protected]
Mains Line
UPS Network
Mario Sedita - INFN-LNS (Italy) - [email protected]
10
Power Supplies Mains Line Network
11
•
400 V - 50 Hz will be used to feed the power supplies and its electronics.
Its main characteristics are:
3-phase without neutral: 400 V phase to phase ± 10 %
Last mains variation : ± 1.5 %
Frequency variation : ± 2 %
Neutral with one-point directly connected to ground (see Fig.)
Distributed earthing circuit
BR
TR
This distribution system complies with norms CEI 64-8 and CENELEC HD 384 for TN-S
distribution
systems.
TR = HV/LV Transformer
400V
20kV
Ground
PS
Mario Sedita - INFN-LNS (Italy) - [email protected]
BR = Protection Breaker
PS = Power Supply or
Equipment
UPS Mains Line Network
12
Backup generator capable of providing power to critical loads during an extended utility source outage and/or
instances where the user has selected backup generator operation, could be required for the auxiliary, control
and security system.
•
Mario Sedita - INFN-LNS (Italy) - [email protected]
EMI
Mario Sedita - INFN-LNS (Italy) - [email protected]
13
EMI What happen during the shot?
14
Mario Sedita - INFN-LNS (Italy) - [email protected]
Electronics and signal grounding
15
•
Particular attention will be devoted to the ground connection system, to prevent influence during the Laser pulses due to the following effects:
Irradiated electromagnetic interference
Electrostatic discharge
Fast transient/burst
•
In order to calculate EMI filters for I/O related to: power, signals and controls, an energy and frequency spectrum simulation and estimation characteristics are required.
•
Is a separated safe area present for Electronics, Power Supplies and Control System?
Ground and shielding must
be taken into account
carefully.
?
Mario Sedita - INFN-LNS (Italy) - [email protected]
Cabling
Grounding
Mario Sedita - INFN-LNS (Italy) - [email protected]
16
PS Cabling
17
•
The cables to be used for power, AC/DC , is fixed in FG7H2R:
Rated voltage 0.6/1KV.
Test voltage 12 KV DC, 4 KV AC .
Working temperature -25 ÷ +90 °C.
Max temperature Short Circuit, 250 °C (5 sec.)
Min. Bend. Radius UNEL 35375: 4 x outer diameter.
Fire retardant.
Standard: CEI 20-13
Mario Sedita - INFN-LNS (Italy) - [email protected]
1.Flexible copper class 5 IEC 60228
2.HEPR elastomeric compound type G7
• Extruded filler
• Copper braid screen
• PVC Rz
End
Mario Sedita - INFN-LNS (Italy) - [email protected]
18