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LHC Project Document No. LHC-MPP-HCP-0003 ver. 2.0 CERN Div./Group or Supplier/Contractor Document No. TE EDMS Document No. 874716 Date: 2009-06-16 the Large Hadron Collider project CERN CH-1211 Geneva 23 Switzerland MP3 Procedure TEST PROCEDURE AND ACCEPTANCE CRITERIA FOR THE 600 A CIRCUITS Abstract This document describes the test procedure and the acceptance parameter specification for the 600A superconducting circuits. A list of the parameters to acquire during the tests is given. Prepared by : Boris Bellesia Gert-Jan Coelingh Robert Flora Valerie Montabonnet Mirko Pojer Hugues Thiesen Walter Venturini Delsolaro Markus Zerlauth Checked by : Gianluigi Arduini Bernhard Auchmann Marta Bajko Amalia Ballarino Nuria Catalan Lasheras Zinur Charifoulline Knud Dahlerup Petersen Reiner Denz Giorgio D’Angelo Glyn Kirby Sandrine Le Naour Michele Modena Andrea Musso David Nisbet Antonio Perin Adriaan Rijllart Matteo Solfaroli Camillocci Jim Strait Yves Thurel Jean-Philip Tock Antonio Vergara Fernandez Arjan Verweij Rob Wolf Marco Zanetti Approved by : Frederick Bordry Jean-Paul Burnet Paul Collier Mike Lamont Steve Myers Lucio Rossi Ruediger Schmidt Andrzej Siemko

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Page 1: LHC Test Procedure - proj-dfb.web.cern.chproj-dfb.web.cern.ch/proj-dfb/dfbx/DFBX/Commissioning/LHC-MPP-H… · Frederick Bordry Jean-Paul Burnet Paul Collier Mike Lamont Steve Myers

LHC Project Document No.

LHC-MPP-HCP-0003 ver. 2.0

CERN Div./Group or Supplier/Contractor Document No.

TE

EDMS Document No.

874716

Date: 2009-06-16

the

Large Hadron Collider project

CERN CH-1211 Geneva 23 Switzerland

MP3 Procedure

TEST PROCEDURE AND ACCEPTANCE

CRITERIA FOR THE 600 A CIRCUITS

Abstract

This document describes the test procedure and the acceptance parameter specification

for the 600A superconducting circuits. A list of the parameters to acquire during the

tests is given.

Prepared by :

Boris Bellesia

Gert-Jan Coelingh

Robert Flora Valerie Montabonnet

Mirko Pojer Hugues Thiesen

Walter Venturini Delsolaro

Markus Zerlauth

Checked by :

Gianluigi Arduini Bernhard Auchmann

Marta Bajko

Amalia Ballarino Nuria Catalan Lasheras

Zinur Charifoulline Knud Dahlerup Petersen

Reiner Denz Giorgio D’Angelo

Glyn Kirby

Sandrine Le Naour Michele Modena

Andrea Musso David Nisbet Antonio Perin

Adriaan Rijllart Matteo Solfaroli Camillocci

Jim Strait Yves Thurel

Jean-Philip Tock

Antonio Vergara Fernandez Arjan Verweij

Rob Wolf Marco Zanetti

Approved by :

Frederick Bordry Jean-Paul Burnet

Paul Collier

Mike Lamont Steve Myers

Lucio Rossi Ruediger Schmidt

Andrzej Siemko

Page 2: LHC Test Procedure - proj-dfb.web.cern.chproj-dfb.web.cern.ch/proj-dfb/dfbx/DFBX/Commissioning/LHC-MPP-H… · Frederick Bordry Jean-Paul Burnet Paul Collier Mike Lamont Steve Myers

LHC Project Document No.

LHC-MPP-HCP-0003 ver. 2.0

Page 2 of 28

History of Changes

Rev. No. Date Pages Description of Changes

0.1

0.2

0.3

1.0

1.1

1.1

2.0

2007-11-14

2008-01-30

2008-04-10

2008-05-14

2009-04-22

2009-05-15

2009-06-16

All

All

All

All

All

All

All

Submission for engineering check

Submission for approval

Submission for approval

Replaces LHC-MP3-HCP-0003 v1, reviewed after first commissioning run of sector 4-5.

PLI3.c1, PLI3.d1, PLI3.e1 and PNO.c1 steps were suppressed; measurements of extraction switches are only scheduled at PNO.b1.

Approval list and variables to be stored were reviewed.

Released

New Paragraph on re-commissioning of OLD circuits

New value of TIME_PNO

I_PCC for OLD circuits to 60A

U_DIFF instead of U_RES for off-line analysis of PCS and

PNO.a3

Submission for approval

Released

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LHC Project Document No.

LHC-MPP-HCP-0003 ver. 2.0

Page 3 of 28

Table of Contents

1. INTRODUCTION .................................................................................... 4

2. TEST CYCLE ........................................................................................... 5

3. TEST SEQUENCE .................................................................................... 6

3.1 PCC.5: CONVERTER CONFIGURATION 4Q (±I_PCC)..................................... 6

3.2 PIC2: INTERLOCK TESTS WITH CONVERTERS CONNECTED TO THE LEADS

(I_MIN_OP) ............................................................................................ 8

3.3 PCS: SPLICES VERIFICATION (±I_PCS) ................................................... 10

3.4 PLI3 INTERMEDIATE CURRENT LEVEL (+I_INTERM_2) ...................... 12 3.4.1 PLI3.B1: ENERGY EXTRACTION FROM QPS (+I_INTERM_2) .................................. 12

3.5 PNO NOMINAL CURRENT (±I_PNO) .................................................... 13 3.5.1 PNO.D3: BIPOLAR POWERING FAILURE .............................................................. 13 3.5.2 PNO.B1: ENERGY EXTRACTION FROM QPS (+I_PNO)............................................ 14 3.5.3 PNO.A3: BIPOLAR CYCLE .................................................................................. 15

3.6 FAILURE INVESTIGATION ....................................................................... 17

4. OFFLINE ANALYSIS ............................................................................. 17

4.1 PCC.5 ................................................................................................... 17

4.2 PCS (MP3) ............................................................................................ 17

4.3 PLI3 ..................................................................................................... 18 4.3.1 PLI3.B1 ENERGY EXTRACTION FROM QPS ............................................................ 18

4.4 PNO ..................................................................................................... 18 4.4.1 PNO.B1 ENERGY EXTRACTION FROM QPS ............................................................ 18 4.4.2 PNO.A3 BIPOLAR CYCLE ..................................................................................... 18

5. MTF PROFILES .................................................................................... 19

6. TEST TO BE DONE IN CASE OF A CIRCUIT RECOMMISSIONING .......... 21

APPENDIX 1: TEST PARAMETERS .................................................................. 22

APPENDIX 2: VARIABLES USED FOR ANALYSIS ............................................ 22

APPENDIX 3: VARIABLES TO BE STORED ...................................................... 24

7. REFERENCES ....................................................................................... 28

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LHC Project Document No.

LHC-MPP-HCP-0003 ver. 2.0

Page 4 of 28

1. INTRODUCTION

In this procedure it is assumed that all previous HC steps were successfully completed

and that the circuit has been approved for powering.

Tests shall be carried out in order of increasing current and in nominal cryogenic conditions, as

defined for this type of circuits.

The entire test is made of the following steps, sorted by current level:

PCC Power converter configuration (±I_PCC)

PIC2 Interlock tests with converters connected to the leads (I_MIN_OP)

PCS Splices verification (±I_PCS)

PLI3 Intermediate current level (+I_INTERM_2):

PLI3.b1 Energy Extraction from QPS (+I_INTERM_2)

PNO Nominal current level (±I_PNO)

PNO.d3 Bipolar Powering Failure

PNO.b1 Energy Extraction from QPS (+I_PNO) (only for EE circuits)

PNO.a3 Bipolar Cycle

At the end of each step an analysis must be performed and the results approved by

all experts of the equipment involved in the test. A list of variables will then be stored in MTF

to characterise the circuit. All quenches must be recorded in MTF together with all relevant

parameters.

Throughout this procedure the following abbreviations are used:

CL: Current Leads (Responsible)

CO: CONTROL (Team)

CRYO: Cryogenics (Team)

EE: Energy Extraction

FPA: Fast power Abort

MB: Dipole Magnet

PC: Power Converter (Team)

PM: Post Mortem

QPS: Quench Protection System (Team)

PSS: Document containing the Sector Powering Specificities, see the

table below:

sector EDMS nr

1-2 883214

2-3 883231

3-4 883247

4-5 883273

5-6 883295

6-7 883317

7-8 883182

8-1 883200

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LHC Project Document No.

LHC-MPP-HCP-0003 ver. 2.0

Page 5 of 28

2. TEST CYCLE

Figure1_ Summary of the powering tests for the 600 A circuits.

PC

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LHC Project Document No.

LHC-MPP-HCP-0003 ver. 2.0

Page 6 of 28

3. TEST SEQUENCE

3.1 PCC.5: CONVERTER CONFIGURATION 4Q (±I_PCC)

The aim of this test is to calibrate the converter and establish the correct QPS

configuration.

Detection thresholds for QPS: 2 V for |I| < 50 A, 100 mV for |I| ≥ 50 A;

discrimination time: 20 ms.

This test shall be performed one circuit at a time for each DFB.

# Action Description Parameters Criteria

Prompt the

QPS operator

to Turn the

fast logging

ON

Need QPS operator to be

present and monitor

U_RES during step 8.

1

Converter

Hardware

Current Limit

Prompt PC to ensure the

current limit is set to the

maximum value

permitted for that

circuit.

A list of circuits and their

maximum current

settings is to be supplied

to PC.

2

Configure

power

converter

Prompt PC to check the

converter configuration.

The converter or

database configuration

may be updated as part

of this process.

The name of a SOC to be

configured, or list of

circuits if different, is to

be supplied to PC.

PC certifies that

some or all of the

converters are

configured.

3 Converter

Startup

Performance

Steps [1, 2] must be

completed.

Start the power

converter. Once in

standby, initiate a

converter fault

(FGC_STATE fault) to

create a post-mortem

event.

PM_STARTUP_PCC Verify that the

Post Mortem file

exists.

4

Flat-bottom at

I_MIN_OP

Reset the converter

maximum earth current.

Turn on the converter

and wait at least

TIME_ZERO at

I_MIN_OP.

5

Alert QPS Prompt QPS operator to

look at the detector

U_RES during next flat

top at -I_PCC_MID

6

Ramp to

-I_PCC_MID

Ramp the converter to -

I_PCC_MID at

DIDT_PNO and

ACC_PNO.

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LHC Project Document No.

LHC-MPP-HCP-0003 ver. 2.0

Page 7 of 28

# Action Description Parameters Criteria

7

Flat-top at

-I_PCC_MID

Wait at least TIME_PCC

at -I_PCC_MID.

8

Wait for online

QPS or MMP

OK

Prompt the QPS

operator, OK button to

continue the test

U_RES Is |U_RES|<3 mV?

(QPS operator) if

not notify MP3

9

Ramp to

-I_PCC

Ramp the converter to

-I_PCC at DIDT_PNO

and ACC_PNO.

10

Flat-top1 at

-I_PCC

Wait TIME_PCC at

-I_PCC.

11

Ramp to

I_MIN_OP

Ramp the converter to

I_MIN_OP at DIDT_PNO

and ACC_PNO.

12

Ramp to

+I_PCC

Ramp the converter to

+I_PCC at DIDT_PNO

and ACC_PNO.

13

Flat-top2 at

+I_PCC

Wait TIME_PCC at

+I_PCC.

14

Ramp to

-I_PCC

Ramp the converter to

-I_PCC at DIDT_PNO

and ACC_PNO.

15

Flat-top3 at

-I_PCC

Wait TIME_PCC at

-I_PCC.

16

Ramp to

+I_PCC

Ramp the converter to

+I_PCC at DIDT_PNO

and ACC_PNO. At the

end of the ramp, obtain

the converter maximum

earth current.

Obtain the converter

maximum absolute

current error.

I_EARTH_PCC

I_ERR_PCC

I_EARTH_MAX

I_ERR_MAX_PCC

17 Flat-top4 at

+I_PCC

Wait TIME_CROWBAR at

+I_PCC.

18 Crowbar at

positive

current

Activate the crowbar by

setting a converter

power failure

(FGC_STATE fault).

Record the name of the

post-mortem file that is

created.

PM_CROWBAR_PCC_POS Verify that the

Post Mortem file

exists

19 Wait for

current decay

and

generation of

Post-Mortem

data

Wait until the following

conditions are true:

1. PC state is

FAULT_OFF

2. TIME_ACTIVATION

has passed

3.PM file exists

4. I_MEAS < 1A

I_DCCT

I_MEAS

U_DIFF

LD1:U_HTS

LD2:U_HTS

LD1:U_RES

LD2:U_RES

20 Re-arm QPS Ask QPS to rearm if a

QPS trigger has occurred

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LHC Project Document No.

LHC-MPP-HCP-0003 ver. 2.0

Page 8 of 28

# Action Description Parameters Criteria

21 Ramp to

-I_PCC

Start the converter and

ramp to -I_PCC at

DIDT_PNO and

ACC_PNO.

22 Flat-top5 at

-I_PCC

Wait TIME_CROWBAR at

-I_PCC.

23 Crowbar at

negative

current

Activate the crowbar by

setting a converter

power failure

(FGC_STATE fault).

Record the name of the

post-mortem file that is

created.

PM_CROWBAR_PCC_NEG Verify that the

Post Mortem file

exists.

24 Wait for

current decay

and

generation of

Post-Mortem

data

Wait until the following

conditions are true:

1. PC state is

FAULT_OFF

2. TIME_ACTIVATION

has passed

3. PM file exists

4. I_MEAS < 1A

I_DCCT

I_MEAS

U_DIFF

LD1:U_HTS

LD2:U_HTS

LD1:U_RES

LD2:U_RES

25 Re-arm QPS Ask QPS to rearm if a

QPS trigger has occurred

PC Analysis

(crowbar)

A PC technician shall be

requested to make an

offline analysis of the

converter crowbar

performance with

positive and negative

current.

See [1].

PCC_CROWBAR_RESULT PASS / FAIL

QPS OK QPS team has to

validate the

performance of the EE

system during PCC

PASS/FAIL

3.2 PIC2: INTERLOCK TESTS WITH CONVERTERS CONNECTED TO THE LEADS (I_MIN_OP)

The current for PIC2 is equal to I_MIN_OP.

The test descriptions given in this section have been added for the sake of completeness only.

The detailed procedures for implementation of the interlock tests are subject to two dedicated

document that will remain the reference for these tests (LHC-CI-TP-0001-10-00, LHC-D-HCP-

0002).

Required approval from:

TEST_PLAN_NAME HWC_PC_EXPERT HWC_QPS_EXPERT HWC_MI_EXPERT HWC_MP3_EXPERT

PCC.5 YES YES NO NO

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LHC Project Document No.

LHC-MPP-HCP-0003 ver. 2.0

Page 9 of 28

Step Action Description Output Variables Criteria

1 Test software link (PIC-Cryo)

Test the correct communication of CRYO_START between

the CRYO supervision and the PIC supervision

Confirmation by CO expert.

2 Tests software link (PIC-QPS)

Test the correct communication of QPS_OK between the

QPS supervision and the PIC supervision

Confirmation by CO expert.

3 PC Permit Give PC Permit, reset the power converter and remove the PC Permit signal.

Reaction time of interlock system <= 4ms

PC Permit is received by the power converter. Confirmation by

CO expert.

4 Powering Failure

Ramp the current to I_MIN_OP and trigger a powering failure.

Reaction time of interlock system <= 4ms

Powering failure is received by the PIC and circuit is

switched off with a slow abort. Confirmation by CO expert.

5 Circuit Quench via QPS

Ramp the current to I_MIN_OP and ask the

QPS expert to simulate a quench signal for the circuit.

Reaction time of interlock system <= 4ms

Quench signal is received by the

PIC and circuit is switched off with a fast power abort. EE switches open.

Confirmation by

QPS and CO expert.

6 Fast Abort Request via PIC

Ramp the current to I_MIN_OP and ask the PIC expert to trigger a

fast power abort request for the circuit.

Reaction time of interlock system <= 4ms

Circuit is switched off with a fast power

abort. EE switches open. Confirmation by QPS and CO expert.

7 Test Hardware links

Confirm that all external HW links to UPS and AUG have been tested.

Confirmation by CO expert.

Required approval from:

TEST_PLAN_NAME HWC_PC_EXPERT HWC_QPS_EXPERT HWC_PIC_EXPERT HWC_MP3_EXPERT

PIC2 CRYO-OK NO NO YES NO

PIC2 QPS-OK NO NO YES NO

PIC2 PC PERMIT NO NO YES NO

PIC2 POWERING FAILURE NO NO YES NO

PIC2 CIRCUIT QUENCH VIA QPS NO YES YES NO

PIC2 FAST ABORT REQ VIA PIC NO YES YES NO

PIC2 TEST HW LINKS NO NO YES NO

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LHC Project Document No.

LHC-MPP-HCP-0003 ver. 2.0

Page 10 of 28

3.3 PCS: SPLICES VERIFICATION (±I_PCS)

This test is to verify the low-current integrity of the splices.

NOTA BENE: This test must be analysed by MP3 with the PCS Analysis Tool in the PM

Event Analyser, to automatically transfer data to MTF

# Action Description Parameters Criteria

Prompt the QPS

operator to Turn

the fast logging

ON

1 Flat-bottom at

I_MIN_OP

Reset the converter

maximum earth current.

Turn on the converter

and wait at least

TIME_ZERO at

I_MIN_OP.

2 Ramp to

+I_PCS_MID

Ramp the current to

+I_PCS_MID at

DIDT_PCS_LOW and

ACC_PCS. At the end of

the ramp, reset the

converter maximum

absolute current error.

U_RES I_DCCT I_MEAS U_DIFF I_DIDT

3 Flat-top at

+I_PCS_MID

Wait TIME_PCS_MID at

+I_ PCS_MID.

U_RES I_DIDT I_DCCT I_MEAS

4 Ramp to +I_PCS

Ramp the current to

+I_PCS at DIDT_PCS

and ACC_PCS.

5

Flat-top at

+I_PCS

Reset the converter

maximum earth current.

Wait TIME_PCS at

+I_ PCS.

After waiting, acquire the

converter maximum

earth current and the

converter maximum

absolute current error.

I_EARTH_PCS_POS I_ERR_PCS_POS U_RES I_DIDT I_DCCT I_MEAS

I_EARTH_MAX

I_ERR_MAX

6 Ramp to

I_MIN_OP

Ramp the current to

I_MIN_OP at DIDT_PNO

and ACC_PNO.

7 Flat-bottom at

I_MIN_OP

Wait TIME_ZERO at

I_MIN_OP.

Acquire the converter

maximum absolute

current error.

I_ERR_PCS_POS_RMP I_ERR_MAX

8 End of positive

cycle

Initiate a converter fault

(FGC_STATE fault) to

create a post-mortem

event.

PM_CYCLE_PCS_POS Verify that the

Post Mortem

files exist.

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LHC Project Document No.

LHC-MPP-HCP-0003 ver. 2.0

Page 11 of 28

# Action Description Parameters Criteria

9 Flat-bottom at

I_MIN_OP

Reset the converter

maximum earth current.

Turn on the converter

and wait at least

TIME_ZERO at

I_MIN_OP.

10 Ramp to

-I_PCS_MID

Ramp the current to

-I_PCS_MID at

DIDT_PCS_LOW and

ACC_PCS.

At the end of the ramp,

reset the converter

maximum absolute

current error.

11 Flat-top at

-I_PCS_MID

Wait TIME_PCS at

-I_ PCS_MID.

U_RES I_DIDT I_DCCT I_MEAS

12 Ramp to

-I_PCS

Ramp the current to

-I_PCS at DIDT_PCS and

ACC_PCS.

13 Flat-top at

-I_PCS

Reset the converter

maximum earth current.

Wait TIME_PCS at

-I_ PCS.

After waiting, acquire the

converter maximum

earth current and the

converter maximum

absolute current error.

I_EARTH_PCS_NEG I_ERR_PCS_NEG U_RES I_DIDT I_DCCT I_MEAS

I_EARTH_MAX

I_ERR_MAX

14 Ramp to

-I_MIN_OP

Ramp the current to

-I_MIN_OP at DIDT_PCS

and ACC_PCS.

Acquire the converter

maximum absolute

current error.

I_ERR_PCS_NEG_RMP I_ERR_MAX

15 End of negative

cycle

Initiate a converter fault

(FGC_STATE fault) to

create a post-mortem

event

PM_CYCLE_PCS_NEG Verify that the

Post Mortem

files exist.

MP3 Analysis Offline Analysis PASS / FAIL

Required approval from:

TEST_PLAN_NAME HWC_PC_EXPERT HWC_QPS_EXPERT HWC_PIC_EXPERT HWC_MP3_EXPERT

PCS NO NO NO YES

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LHC Project Document No.

LHC-MPP-HCP-0003 ver. 2.0

Page 12 of 28

3.4 PLI3 INTERMEDIATE CURRENT LEVEL (+I_INTERM_2)

3.4.1 PLI3.B1: ENERGY EXTRACTION FROM QPS (+I_INTERM_2)

This test is for checking the performance of the QPS and the EE systems.

Only done for circuits with Energy Extraction, in case the EE equipment has not been

commissioned before, this step needs the EE team to be in the tunnel and take measurements.

To be organised for group of circuits in function of tunnel locations.

This test corresponds to the Energy Extraction from QPS test described in LHC-MPP-HCP-

0001.

# Action Description Parameters Criteria

1 Flat-bottom at

I_MIN_OP

Turn on the converter

and wait at least

TIME_ZERO at

I_MIN_OP.

2 Ramp to

+I_INTERM_2

Ramp the current to

+I_INTERM_2 at

DIDT_PNO and

ACC_PNO.

3 Flat-top at

+I_INTERM_2

Wait at least TIME_

CROWBAR at

+I_INTERM_2.

4 Open Energy

Extraction Switch

Send quench signal from

QPS

5 Wait for current

decay and

generation of

Post-Mortem

data

PM_EE_PLI3_B1

I_DCCT

I_MEAS

U_DIFF

LD1:U_HTS

LD2:U_HTS

LD1:U_RES

LD2:U_RES

Verify that

the Post

Mortem files

exist.

6 PC Analysis

(Crowbar)

A PC Technician shall be

requested to make an

offline analysis of ramp-

down performance from

+I_INTERM_2.

See [1].

PLI3_B1_EE_RESULT

PASS / FAIL

QPS Analysis PASS / FAIL

OK from QPS

Required approval from:

TEST_PLAN_NAME HWC_PC_EXPERT HWC_QPS_EXPERT HWC_PIC_EXPERT HWC_MP3_EXPERT

PL3.B1 YES YES NO NO

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LHC Project Document No.

LHC-MPP-HCP-0003 ver. 2.0

Page 13 of 28

3.5 PNO NOMINAL CURRENT (±I_PNO)

It is possible that one or more training quenches will occur during ramp-up at

some current level below I_PNO. If a quench occurs, then the test is

considered as failed. In this case MP3 will decide to repeat the test with the

same or with a modified current level. Before repeating the test, the approval

of MP3 is required.

3.5.1 PNO.D3: BIPOLAR POWERING FAILURE

This test is to verify the correct functionality of the PC when a powering failure is

generated.

# Action Description Parameters Criteria

1 Flat-bottom at

I_MIN_OP

Reset the converter

maximum earth current.

Turn on the converter

and wait at least

TIME_ZERO at I_MIN_OP

2 Ramp to +I_PNO Ramp the current to

+I_PNO at DIDT_PNO

and ACC_PNO.

First powering to nominal

current; may have

training quenches

I_DCCT

I_MEAS

U_DIFF

LD1:U_HTS

LD2:U_HTS

LD1:U_RES

LD2:U_RES

3 Flat-top at

+I_PNO

Wait at least

TIME_CROWBAR at

+I_PNO.

4 Simulate a

Powering Failure

Make the PC simulate a

powering failure

(FGC_STATE fault).

5 Wait for current

decay and

generation of

Post-Mortem

data

Wait until the following

conditions are true:

1. PC state is FAULT_OFF

2. TIME_ACTIVATION has

passed

3. PM files exist

4. I_MEAS < 1A

PM_PWR_FAIL_PNO_D3_

POS

I_DCCT

I_MEAS

U_DIFF

LD1:U_HTS

LD2:U_HTS

LD1:U_RES

LD2:U_RES

Verify that

the Post

Mortem files

exist.

6 Re-arm QPS Ask QPS to rearm if a

QPS trigger has occurred.

7 Ramp success Previous step must

complete successfully,

otherwise stop the test.

8 Flat-bottom at

I_MIN_OP

Reset the converter

maximum earth current.

Turn on the converter

and wait at least

TIME_ZERO at I_MIN_OP

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# Action Description Parameters Criteria

9 Ramp to

-I_PNO

Ramp the current to

-I_PNO at DIDT_PNO and

ACC_PNO

10 Flat-top at

-I_PNO

Wait at least

TIME_ CROWBAR at

-I_PNO

11 Simulate a

Powering Failure

Make the PC simulate a

powering failure

(FGC_STATE fault).

12 Wait for current

decay and

generation of

Post-Mortem

data

Wait until the following

conditions are true:

1. PC state is FAULT_OFF

2. TIME_ACTIVATION has

passed

3. PM file exists

4. I_MEAS < 1A

PM_PWR_FAIL_PNO_D3_

NEG

I_DCCT

I_MEAS

U_DIFF

LD1:U_HTS

LD2:U_HTS

LD1:U_RES

LD2:U_RES

Verify that

Post Mortem

files exist

13 Re-arm QPS Ask QPS to rearm if a

QPS trigger has occurred.

PC Analysis

(Crowbar)

A PC technician shall be

requested to make an

offline analysis of the

converter crowbar

performance with positive

and negative current.

See [1].

PNO_D3_PWR_FAIL_RES

ULT

PASS / FAIL

3.5.2 PNO.B1: ENERGY EXTRACTION FROM QPS (+I_PNO)

This test is for checking, at high current level, the performance of the QPS and the EE

systems.

This test corresponds to the Energy Extraction from QPS test described in LHC-MPP-HCP-

0001. No intervention of EE team in the tunnel to take measurements is foreseen.

# Action Description Parameters Criteria

1 Flat-bottom at

I_MIN_OP

Turn on the converter

and wait at least

TIME_ZERO at

I_MIN_OP.

2 Ramp to

+I_PNO

Ramp the current to

+I_PNO at DIDT_PNO

and ACC_PNO.

Required approval from:

TEST_PLAN_NAME HWC_PC_EXPERT HWC_QPS_EXPERT HWC_PIC_EXPERT HWC_MP3_EXPERT

PNO.D3 YES NO NO YES

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# Action Description Parameters Criteria

3 Flat-top at

+I_PNO

Wait at least TIME_

CROWBAR at +I_PNO.

4 Open Energy

Extraction

Switch

Send quench signal from

QPS

5 Wait for current

decay and

generation of

Post-Mortem

data

PM_EE_PNO_B1_POS

I_DCCT

I_MEAS

U_DIFF

LD1:U_HTS

LD2:U_HTS

LD1:U_RES

LD2:U_RES

Verify that

the Post

Mortem files

exist.

PC Analysis A PC Technician shall be

requested to make an

offline analysis of ramp-

down performance with

positive current.

See [1].

PNO_B1_EE_RESULT PASS / FAIL

QPS Analysis PASS / FAIL

3.5.3 PNO.A3: BIPOLAR CYCLE

This test is to verify the correct functionality of magnet and Current Leads at nominal

current level as well as the high-current integrity of the splices.

NOTA BENE: This test must be analysed by MP3 with the PCS Analysis Tool in the PM

Event Analyser, to automatically transfer data to MTF

# Action Description Parameters Criteria

1 Prompt QPS QPS fast logging active

2 Flat-bottom

at I_MIN_OP

Reset the converter

maximum earth current.

Turn on the converter

and wait at least

TIME_ZERO at

I_MIN_OP.

3 Ramp to

+I_PCC

Ramp the current to

+I_PCC at DIDT_PNO

and ACC_PNO. At the

end of the ramp, reset

the converter maximum

absolute current error.

U_RES I_DIDT

Required approval from:

TEST_PLAN_NAME HWC_PC_EXPERT HWC_QPS_EXPERT HWC_PIC_EXPERT HWC_MP3_EXPERT

PNO.B1 NO YES NO NO

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# Action Description Parameters Criteria

4 Flat-top at

+I_PCC

Wait TIME_PCC at

+I_ PCC.

U_RES I_DIDT

5 Ramp to

+I_PNO

Ramp the current to

+I_PNO at DIDT_PNO

and ACC_PNO.

6 Flat-top at

I_PNO

Reset the converter

maximum earth current.

Wait at least

TIME_PNO_CL at

+I_PNO.

After waiting, acquire the

converter maximum

earth current and the

converter maximum

absolute current error.

I_EARTH_PNO_A3_POS I_ERR_PNO_A3_POS U_RES I_DIDT

I_EARTH_MAX

I_ERR_MAX

7 Ramp to

I_MIN_OP

Ramp the current to

I_MIN_OP at DIDT_PNO

and ACC_PNO.

8 Flat-bottom

at I_MIN_OP

Wait TIME_ZERO at

I_MIN_OP.

Acquire the converter

maximum absolute

current error.

I_ERR_PNO_A3_POS_RMP

9 End of

positive cycle

Initiate a converter fault

(FGC_STATE fault) to

create a post-mortem

event.

PM_CYCLE_PNO_A3_POS Verify that the

Post Mortem

files exist.

10 Flat-bottom

at I_MIN_OP

Reset the converter

maximum earth current.

Turn on the converter

and wait at least

TIME_ZERO at

I_MIN_OP.

11 Ramp to

-I_PCC

Ramp the current to

-I_PCC at DIDT_PNO and

ACC_PNO. At the end of

the ramp, reset the

converter maximum

absolute current error.

U_RES I_DIDT

12 Flat-top at

-I_PCC

Wait TIME_PCC at

-I_ PCC.

U_RES I_DIDT

13 Ramp to

-I_PNO

Ramp the current to

-I_PNO at DIDT_PNO and

ACC_PNO.

14 Flat-top at

-I_PNO

Reset the converter

maximum earth current.

Wait at least TIME_PNO

at -I_PNO.

After waiting, acquire the

converter maximum

earth current and the

converter maximum

I_EARTH_PNO_A3_NEG

I_ERR_PNO_A3_NEG

U_RES

I_DIDT

I_EARTH_MAX

I_ERR_MAX

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LHC Project Document No.

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# Action Description Parameters Criteria

absolute current error.

15 Ramp to

I_MIN_OP

Ramp the current to

I_MIN_OP at DIDT_PNO

and ACC_PNO.

16 Flat-bottom

at I_MIN_OP

Wait TIME_ZERO at

I_MIN_OP.

Acquire the converter

maximum absolute

current error.

I_ERR_PNO_A3_NEG_RM

P

17 End of

negative

cycle

Initiate a converter fault

(FGC_STATE fault) to

create a post-mortem

event.

PM_CYCLE_PNO_A3_NEG Verify that the

Post Mortem

files exist.

MP3 Analysis PASS / FAIL

3.6 FAILURE INVESTIGATION

If the test fails, the failure should be reported to the EIC, who will consult Power Converter

and/or MP3 specialists to decide on the best action. It may be necessary to proceed with

further investigations to find the source of the failure. If the failure is significant, the EIC

should open an NC (non conformity), or ensure the specialist concerned opens an NC.

4. OFFLINE ANALYSIS

To be completed by PC, QPS, EE, CL and MP3 experts.

4.1 PCC.5

The offline analysis of PCC is performed by PC experts.

4.2 PCS (MP3)

The offline analysis steps of PCS are added for completeness. An automatic tool is

available to perform the analysis.

Step Action Description Parameters Criteria

1 Capture resistive

voltage and current at

+I_PCS_MID

Measurement DB,

(timestamps from

the FGC PM files)

VMID+=<U_DIFF>

IMID=<I_MEAS>

VMID+< 2 mV

Required approval from:

TEST_PLAN_NAME HWC_PC_EXPERT HWC_QPS_EXPERT HWC_PIC_EXPERT HWC_MP3_EXPERT

PNO.A3 NO NO NO YES

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2 As above at +I_PCS Same as step 1 VPCS+=<U_DIFF>

IPCS=<I_MEAS>

VPCS+< 2 mV

3 Capture resistive

voltage at –I_PCS_MID

Same as step 1 VMID- =<U_DIFF> VMID

- < 2 mV

|I_MEAS+IMID|< 5 10

-4 A

4 Capture resistive

voltage at –I_PCS

Same as step 1 VPCS- = <U_DIFF>

VPCS

- < 2 mV

|I_MEAS+IPCS|< 5 10

-4 A

5 Compute offset-free

voltage at I_PCS_MID

and equivalent

resistance

VMID= (VMID+-

VMID-)/2

RMID=VMID/IMID

RMID RMID< 5 µΩ

6 Compute offset-free

voltage at I_PCS and

equivalent resistance

VPCS= (VPCS+-

VPCS-)/2

RPCS=VPCS/IPCS

RPCS RPCS < 5 µΩ |RMID-RPCS| < 0.5 µΩ

7 QPS current error |I_DCCT - I_MEAS| ERR_IQPS < 1 A

4.3 PLI3

4.3.1 PLI3.B1 ENERGY EXTRACTION FROM QPS

Step Action Description Parameters Criteria

1 Check

discharge

2 Measure

voltage

Detailed extraction

voltage measured in situ Data file

4.4 PNO

4.4.1 PNO.B1 ENERGY EXTRACTION FROM QPS

Step Action Description Parameters Criteria

1 Check

discharge

4.4.2 PNO.A3 BIPOLAR CYCLE

Step Action Description Parameters Criteria

1 From PM Catch resistive voltage at

I nominal

VPNO+

=<U_DIFF>

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VPNO- =<U_DIFF>

2 Compute:

VPNO= (VPNO

+-

VPNO-)/2

Offset-free voltage at

IPNO

Equivalent resistance

----U_DIFF ---I_DCCT RPNO=VPNO/IPNO N number of splices

RPNO/N < 5 µΩ |RPNO-RPCS| < 0.5 µΩ

5. MTF PROFILES

600A Circuits with Energy Extraction

00-MP3 OK to Start Powering

091-HCA PCL Current Leads Verification

099-HCA PCC.5 Converter Configuration 4Q 600A

10-HCA PIC2.1 Tests Software Link (PIC-Cryo)

11-HCA PIC2.2 Tests Software Link (PIC-QPS)

12-HCA PIC2.3 PC Permit

13-HCA PIC2.4 Powering Failure

14-HCA PIC2.5 Circuit_Quench via QPS

15-HCA PIC2.6 Fast_Abort_Request via PIC

19-HCA PIC2.10 Test Hardware Links

20-HCA PCS Splices Verification

511-HCA PLI3.b1 Energy Extraction from QPS 600A

733-HCA PNO.d3 Bipolar Powering Failure 600A

711-HCA PNO.b1 Energy Extraction from QPS 600A

703-HCA PNO.a3 Bipolar Cycle 600A I_PNO

18-HCA PIC2.9 Test Global Protection Mech.

998-HCA PTT Circuit Type Test

9985-HCA PCR Circuit Released by PC

9986-HCA PCR Circuit Released by QPS/EE

999-HCA PCR Circuit Released

600A Circuits without Energy Extraction

00-MP3 OK to Start Powering

091-HCA PCL Current Leads Verification

099-HCA PCC.5 Converter Configuration 4Q 600A

10-HCA PIC2.1 Tests Software Link (PIC-Cryo)

11-HCA PIC2.2 Tests Software Link (PIC-QPS)

12-HCA PIC2.3 PC Permit

13-HCA PIC2.4 Powering Failure

14-HCA PIC2.5 Circuit_Quench via QPS

15-HCA PIC2.6 Fast_Abort_Request via PIC

19-HCA PIC2.10 Test Hardware Links

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20-HCA PCS Splices Verification

733-HCA PNO.d3 Bipolar Powering Failure 600A

703-HCA PNO.a3 Bipolar Cycle 600A I_PNO

18-HCA PIC2.9 Test Global Protection Mech.

998-HCA PTT Circuit Type Test

9985-HCA PCR Circuit Released by PC

9986-HCA PCR Circuit Released by QPS/EE

999-HCA PCR Circuit Released

600A Circuits without Energy Extraction, crowbar

00-MP3 OK to Start Powering

091-HCA PCL Current Leads Verification

099-HCA PCC.5 Converter Configuration 4Q 600A

10-HCA PIC2.1 Tests Software Link (PIC-Cryo)

11-HCA PIC2.2 Tests Software Link (PIC-QPS)

12-HCA PIC2.3 PC Permit

13-HCA PIC2.4 Powering Failure

14-HCA PIC2.5 Circuit_Quench via QPS

15-HCA PIC2.6 Fast_Abort_Request via PIC

19-HCA PIC2.10 Test Hardware Links

20-HCA PCS Splices Verification

733-HCA PNO.d3 Bipolar Powering Failure 600A

703-HCA PNO.a3 Bipolar Cycle 600A I_PNO

18-HCA PIC2.9 Test Global Protection Mech.

998-HCA PTT Circuit Type Test

9985-HCA PCR Circuit Released by PC

9986-HCA PCR Circuit Released by QPS/EE

999-HCA PCR Circuit Released

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6. TEST TO BE DONE IN CASE OF A CIRCUIT RECOMMISSIONING

After a shut-down, each circuit will be defined as NEW or UNAFFECTED, according to its

status at the end of the previous campaign and to the interventions carried out during the

shut-down activity. A circuit, which was already commissioned during the previous

commissioning campaign, is considered UNAFFECTED when no electrical modification

(equipment change or upgrade) has been performed, no bus line has been touched or no

conformity has been discovered. A circuit which was not fully commissioned during the

previous campaign or which is not included in the previous category is considered as

NEW.

The list of circuits belonging to the two categories will be included in ad-hoc documents to

be edited at the end of each shut-down (EDMS no. 1001967).

In case of a NEW circuit the commissioning procedure is the one described above.

A circuit labeled as UNAFFECTED is considered commissioned and a reduced re-

qualification campaign must be performed.

The tests that are meant to re-qualify an UNAFFECTED labeled circuit are (see Figure2):

- Power Converter Configuration (PCC) tests (the current to be used is in this case 60A

instead of 50A, used for a “NEW” circuit, in order to ensure the activation of the crow-

bar of the power converter);

- PIC2 tests;

- PCS at I_PCS, to re-check the splices;

- PNO.b1 (for circuits with EE) and PNO.a3 at I_PNO.

Figure 2_ Reduced commissioning procedure for “UNAFFECTED” circuits.

PC

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LHC-MPP-HCP-0003 ver. 2.0

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APPENDIX 1: TEST PARAMETERS

The following parameters are valid for all circuits unless otherwise noted in the list of

exceptions.

Parameter Value Unit Description

I_MIN_OP 0 A Minimum operational current

I_PCC_MID 10 A Intermediate current used in PCC

I_PCC 45 A Maximum current used in PCC

I_PCS_MID 80 A Intermediate current used in PCS

I_PCS 200 A Maximum current used in PCS

I_INTERM_2 200 A Intermediate current used in PLI3 tests

I_PNO # A Nominal commissioning current of the circuit

under test

TIME_ZERO 30 s Time for the flat-tops at I_MIN_OP

TIME_PCC 10 s Time for the flat-tops at I_PCC

TIME_PCS 240 s Time for the flat-tops at I_PCS

TIME_PCS_MID 240 s Time for the flat-tops at I_PCS_MID

TIME_CROWBAR 2 s Time interval at plateau before triggering a

test involving the crowbar

TIME_ACTIVATION Layout DB > 3{L/(R + Rcrowbar)}

s Time for the current decay in PLI3.D1 and

PNO.D1

TIME_PNO 1500 s Time for the flat-tops at I_PNO

TIME_PNO_CL 3600 s Time at I_PNO to check current leads

DIDT_PCS_LOW 1 A/s Low current ramp rate used in PCS

DIDT_PCS 5 A/s Maximum current ramp rate used in PCS

DIDT_PNO 5 A/s Nominal current ramp rate

ACC_PCS 0.1 A/s2 Current acceleration used in PCS

ACC_PNO 0.1 A/s2 Nominal current acceleration

ACC_RED 0.02 A/s2 Reduced current acceleration*

I_EARTH_MAX 10 mA Maximum earth current for the criteria

I_ERR_MAX_PCC 360

(600)

mA

(ppm)

Maximum current regulation error for the

criteria during PCC

I_ERR_MAX 18

(30)

mA

(ppm)

Maximum current regulation error for the

criteria in PCS and PNO

#Values according to the PSS documents

* Reduced current acceleration to be applied in case of anomalies in the inductance

APPENDIX 2: VARIABLES USED FOR ANALYSIS

The table below refers to the RCS.A78.B1 circuit as an example. Parameter names can be

found for any circuit in the Layout database, the suffixes being the same for all signals with the

same significance.

Description Parameter name Source Power converter current

measurement of

RPMBB.UA83.RCS.A78B1

RPMBB.UA83.RCS.A78B1:I_MEAS

PM (POW)

FGC

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Power converter voltage

measurement of

RPMBB.UA83.RCS.A78B1

RPMBB.UA83.RCS.A78B1:V_MEAS

PM

FGC

Power converter maximum current

regulation error of

RPMBB.UA83.RCS.A78B1

RPMBB.UA83.RCS.A78B1:

ILOOP.MAX_ABS_ERR FGC

Power Converter maximum ground

current on load side of

RPMBB.UA83.RCS.A78B1

RPMBB.UA83.RCS.A78B1:

MEAS.MAX_I_EARTH FGC

Power Converter faults of

RPMBB.UA83.RCS.A78B1

RPMBB.UA83.RCS.A78B1:

FGC2.FAULTS FGC

Calculated resistive voltage of

RCS.A78B1

RCS.A78B1:U_RES

PM (QPS)

Voltage across corrector's circuit of

RCS.A78B1

RCS.A78B1:U_DIFF

PM (QPS)

Current slope of RCS.A78B1

RCS.A78B1:I_DIDT

PM (QPS)

Current in the circuit of RCS.A78B1

RCS.A78B1:I_DCCT

PM (QPS)

HTS part current lead of

DFLBS.6L8.RCS.A78B1.LD1

DFLBS.6L8.RCS.A78B1.LD1:U_HTS

PM (QPS)

Resistive part current lead of

DFLBS.6L8.RCS.A78B1.LD1

DFLBS.6L8.RCS.A78B1.LD1:U_DIFF

PM (QPS)

HTS part current lead of

DFLBS.6L8.RCS.A78B1.LD2

DFLBS.6L8.RCS.A78B1.LD2:U_HTS

PM (QPS)

Resistive part current lead of

DFLBS.6L8.RCS.A78B1.LD2

DFLBS.6L8.RCS.A78B1.LD2:U_DIFF

PM (QPS)

Temperature of the warm part of

the HTS TT891

Temperature of the warm part of

the lead TT893

Liquid helium level in the DFB

Valve opening for each lead CV891

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APPENDIX 3: VARIABLES TO BE STORED

Parameter Unit Analysis

Source Description Test

To be

filled by

TEST_PROCEDURE_VERSION Text /

hyperlink Offline

EDMS version

number of the test

procedure applied.

None MP3

PM_STARTUP_PCC

Text /

hyperlink

Online

Postmortem

filename of PC

startup sequence. PCC.1 PMA

I_EARTH_PCC A Online

Max earth current

measured during

PCC. PCC.1 Sequencer

I_ERR_PCC A Online

Max error between

current reference

and measured

current during

PCC, acquired

continuously by

the PC at the

speed of the

current loop.

PCC.1 Sequencer

PM_CROWBAR_PCC_POS

Text /

hyperlink

Online

Postmortem

filename of

POSitive current

PCC crowbar

activation.

PCC.1 PMA

PM_CROWBAR_PCC_NEG

Text /

hyperlink

Online

Postmortem

filename of

NEGative current

PCC crowbar

activation.

PCC.1 PMA

I_EARTH_PCS_POS A Online

Max earth current

measured during

PCS POSitive

ramp.

PCS Sequencer

I_ERR_PCS_POS A Online

Max error between

current reference

and measured

current during PCS

POSitive cycle,

acquired

continuously by

the PC at the

speed of the

current loop

PCS Sequencer

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Parameter Unit Analysis

Source Description Test

To be

filled by

I_ERR_PCS_POS_RMP A Online

Max error between

current reference

and measured

current during

NEGative ramp at

the end of PCS

POSitive cycle ,

acquired

continuously by

the PC at the

speed of the

current loop

PCS Sequencer

PM_CYCLE_PCS_POS

Text /

hyperlink

Online

Postmortem

filename of

POSitive current

cycle during PCS.

PCS PMA

I_EARTH_PCS_NEG A Online

Max earth current

measured during

PCS NEGative

ramp.

PCS Sequencer

I_ERR_PCS_NEG A Online

Max error between

current reference

and measured

current during PCS

NEGative cycle,

acquired

continuously by

the PC at the

speed of the

current loop

PCS Sequencer

I_ERR_PCS_NEG_RMP A Online

Max error between

current reference

and measured

current during

POSitive ramp at

the end of PCS

NEGative cycle ,

acquired

continuously by

the PC at the

speed of the

current loop

PCS Sequencer

PM_CYCLE_PCS_NEG

Text /

hyperlink

Online

Postmortem

filename of

NEGative current

cycle during PCS.

PCS PMA

PM_EE_PLI3_B1

Text /

hyperlink

Online

Postmortem

filename of

POSitive Current

Energy Extraction

activation during

PLI3

PLI3.B1 PMA

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Page 26 of 28

Parameter Unit Analysis

Source Description Test

To be

filled by

PLI3_B1_EE_RESULT

Text /

hyperlink

Offline

Result of the OFF

line analysis of

POSitive Current

Energy Extraction

activation during

PLI3

PLI3.C1 EE

PM_PWR_FAIL_PNO_D3_POS

Text /

hyperlink

Online

Postmortem

filename of

POSitive Current

Powering Failure

activation during

PNO

PNO.D3 PMA

PM_PWR_FAIL_PNO_D3_NEG

Text /

hyperlink

Online

Postmortem

filename of

NEGative Current

Powering Failure

activation during

PNO

PNO.D3 PMA

PM_EE_PNO_B1_POS

Text /

hyperlink

Online

Postmortem

filename of

POSitive Current

Energy Extraction

activation during

PNO

PNO.B1 PMA

PNO_B1_EE_RESULT

Text /

hyperlink

Offline

Result of the OFF

line analysis of t

Energy POSitive

Current Extraction

activation during

PNO

PNO.B1 EE

I_EARTH_PNO_A3_POS

A Online

Max earth current

measured during

PNO POSitive

ramp.

PNO.A3 Sequencer

I_ERR_PNO_A3_POS

A Online

Max error between

current reference

and measured

current during PNO

POSitive cycle,

acquired

continuously by

the PC at the

speed of the

current loop

PNO.A3 Sequencer

Page 27: LHC Test Procedure - proj-dfb.web.cern.chproj-dfb.web.cern.ch/proj-dfb/dfbx/DFBX/Commissioning/LHC-MPP-H… · Frederick Bordry Jean-Paul Burnet Paul Collier Mike Lamont Steve Myers

LHC Project Document No.

LHC-MPP-HCP-0003 ver. 2.0

Page 27 of 28

Parameter Unit Analysis

Source Description Test

To be

filled by

I_ERR_PNO_A3_POS_RMP A Online

Max error between

current reference

and measured

current during

NEGative ramp at

the end of PNO.A3

POSitive cycle ,

acquired

continuously by

the PC at the

speed of the

current loop

PNO.A3 Sequencer

PM_CYCLE_PNO_A3_POS Text /

hyperlink

Online

Postmortem

filename of

POSitive current

cycle during PNO.

PNO.A3 PMA

I_EARTH_PNO_A3_NEG

A Online

Max earth current

measured during

PNO NEGative

ramp.

PNO.A3 Sequencer

I_ERR_PNO_A3_NEG

A Online

Max error between

current reference

and measured

current during PNO

NEGative cycle,

acquired

continuously by

the PC at the

speed of the

current loop

PNO.A3 Sequencer

I_ERR_PNO_A3_NEG_RMP A Online

Max error between

current reference

and measured

current during

POSitive ramp at

the end of PNO.A3

NEGative cycle ,

acquired

continuously by

the PC at the

speed of the

current loop

PNO.A3 Sequencer

PM_CYCLE_PNO_A3_NEG Text /

hyperlink

Online

Postmortem

filename of

negative current

cycle during PNO.

PNO.A3 PMA

VMID+ V offline Resistive voltage at

+I_PCS_MID PCS MP3

VMID- V offline Resistive voltage at

–I_PCS_MID PCS MP3

VPCS+ V offline Resistive voltage at

+I_PCS PCS MP3

Page 28: LHC Test Procedure - proj-dfb.web.cern.chproj-dfb.web.cern.ch/proj-dfb/dfbx/DFBX/Commissioning/LHC-MPP-H… · Frederick Bordry Jean-Paul Burnet Paul Collier Mike Lamont Steve Myers

LHC Project Document No.

LHC-MPP-HCP-0003 ver. 2.0

Page 28 of 28

Parameter Unit Analysis

Source Description Test

To be

filled by

VPCS- V offline Resistive voltage at

–I_PCS PCS MP3

VPNO+ V offline Resistive voltage at

+I_PNO PNO.A3 MP3

VPNO- V offline Resistive voltage at

–I_PNO PNO.A3 MP3

RMID Ω offline

Splice equivalent

resistance at

I_PCS_MID

PCS MP3

RPCS Ω offline Splice equivalent

resistance at I_PCS PCS MP3

RPNO Ω offline

Splice equivalent

resistance at

I_PNO

PCS MP3

I_COMMISSIONED A Offline

Current value at

which I_PNO is

completed

HCA PCR

Circuit

Released

MP3

*Only for circuits with Energy Extraction

The following table contains parameters to be stored in case a quench has happened by means

of an attached file to the MTF record.

Parameter Unit Analysis

Source Description Test

To be

filled by

MIITS_Q1 A2 s offline MIITS integral first

quench

ANY MP3

VMAX_Q1, V offline Maximum voltage

first quench

ANY MP3

… Q2 s, A2 s ,V offline ANY MP3

…Q3 s, A2 s ,V offline ANY MP3

… s, A2 s ,V offline ANY MP3

…QN s, A2 s ,V offline ANY MP3

7. REFERENCES

[1] Y. Thurel, “LHC600A-10V Power Converter Presentation”, edms no. 888909.