.

TYPICAL SUPERCONDUCTING

MAGNET TEST SEQUENCE

PREPARATORY TESTS AT ROOM TEMPERATURE

Lyre Test: Simulate Effect of Thermal Contraction in Cold condition

Check Functioning of Quench Heaters and Voltage Taps. Measure Heater resistances and perform High Voltage Insulation Test

COLD TESTS High Voltage Insulation Test: Before

Magnet Powering Slow Power Abort Test: Power the

Magnet upto 1000 A and then back to Zero with Controlled Ramp Rate to check the power converter operation

Provoked Quench Tests: Power the Magnet up to 1500 A and check Quench-Heaters’ protection by provoking a Quench by triggering the heaters.

…..COLD TESTS TRAINING of Magnet: Feed the Magnet

with Repetitive Current Ramp cycles until it gets “TRAINED” (Following the Training Rules)

(MAGNETIC MEASUREMENTS :Measurement of Field profile, Harmonics etc. by rotating a coil in the magnet aperture)

HV Insulation Test: After Completion of Magnet Power Tests

Minimum Energy Quench: Provoke a Quench by Firing one LF Heater at minimum required Heater-Voltage

FINAL TESTS AT WARM

Final Check for Electrical Integrity of Voltage Taps and Temperature Sensor after completion of Power Tests at cold

Final Resistance Measurement at Room temperature of Quench Heaters, Voltage Taps, Temperature sensor etc.

New Magnet

Magnet Test Report (MTR) Scan Magnet Labels

ICS – HV test (WP04)

Warm Tests (Initial)

Prep 1 – Lyre Test Prep 2.1 & 2.2 – IAP @ warm LF &

HF Quench Heaters Prep 2.3 – Resistance

Measurement Prep 3 – HV Test

ICS Cryo Cooling Down Prep 5

Cold Tests

PT 1 – IAP@cold (Offset & AC compensation of Potaim Cards)

PT2 – HV Test (CDBP) PT3 – Resistance Measurement

Powering tests

…..Cold Tests

PT4 - Slow Power Abort Test PT5.1 - Provoked Quench (All LF) PT5.2 - Provoked Quench (All HF) PTE - Diode Test (Minimum Energy) PT6 - Training Quench (Training

Rules) PT8 - Detraining and Fast de-

excitation test (PT7 - Ultimate Current)

…..Cold Tests

PT9 - HV Test (CDAP) PT10 - Minimum energy quench

(Warm up)(PT11 - Short Sample Limit (SSL) Quenches)

Warming up PT12

Warm Tests (Final)

PT13.1 – IAP@warm PT13.2 – Resistance

Measurement

ICS – HV test (WP07)

PT14 – MAPS (Stripping / Standby) & Documentation

Test, Data & Information Management Tools TEMA – Test Master SMTMS – SM18 Test

Management System E-logbook E-Traveler & SMS MTF – Manufacturing & Test

Folder SM18 Website

SM18 Website

Information Documents / Templates Links

TEMA

Separate Server for Each Cluster Access Levels Hardware Recognition Bench Selection Test Sequence Selection Test Selection Check Applications PLCSE Reset Run Test

SMTMS

Adding New Magnet Adding New Test Updating Test Data Removing Magnet Auto Update

E-logbook

Opening e-logbook Starting a new shift Adding logbook entries Bench unavailability

E-Traveler

Signing for warm magnets Signing for cold magnets

MTF

Accessing MTF Uploading Results Generating Non-Conformity

Cryogenic Phases

A. Cool down to 80 K

B. Cool down to 4 K

C. Cool down to 1.9 K

D. Warm up

Ideal (Optimum) CasePhases A & D – 3 Benches

Phase B – 1 Bench

Phase C – 3 Benches

Bench Priorities

Objective – Maximise Production Achieved by : Distributing the benches to

different phases of production ( ICS, Cryo, Warm & Cold) so that the common resources

can be shared efficiently Points to note:

Meet the optimum cryo requirements Avoid two magnets on the same cluster

in the same phase (esp. cold)

Points to note

Switch off LF & HF Acquisition Connect D20 connector after HV test Close the main Inlet & Outlet valves of

cooling water first Select the bench before charging the

Quench Heaters Change Power Converter to CC before

Prep5 & PT12 Disconnect AC signal cable on CFB after

PT1 AC compensation

Points to note …..

Write the TT821 temp. sensor reading from LF viewer (TEMA) in MTR

Update SMTMS as soon as possible Check the temp. entry when a new test

added in SMTMS Enter Bench & Magnet name in E-

logbook MTF password is different ! Entries in MTF can not be corrected after

saving