LSC 30/08/13

F. Duval / EN-EL

Update on EN-EL Activities during LS1

1 12/09/2013

Summary

Events on the network Incidents Network reconfigurations Network operation

Update on activities Tests Projects and various

EL activities for other CERN groups: Invoicing and payments

EN/EL Activities

2 LSC - François Duval EN-EL 30/08/2013

3 LSC - François Duval EN-EL

Network Incidents

Date Failure Substation

March 9, 2013 18 kV current transformer ME10 Meyrin SIG Source

July 20, 2013 MP2 18 kV inter site link Prévessin Main s/s + Route de l’Europe

August 2, 2013 18 kV voltage transformer Prévessin Main s/s

August 9, 2013 MP2 18 kV inter site link - bis

Prévessin Main s/s + Route de l’Europe

30/08/2013

Events list:

4 LSC - François Duval EN-EL 30/08/2013

1. 18kV TC FAILURE AT ME10 S/S

Network Incidents

5 LSC - François Duval EN-EL 30/08/2013

Network Incidents

- EHT611*10 Trip for Earth Fault Bus-Bar protection- TC installed in cubicle ME105*10 phase R blasted- No impact on operation; Swiss source was on idle- TC replaced with a spare- Fault analysis (EDMS 1278235) reported the cause in

component ageing

1. 18kV Current Transformer Failure at ME10 s/s

6 LSC - François Duval EN-EL 30/08/2013

Network Incidents

2. MP2 18 kV cable link failure seen from the Prévessin Main s/s on Route de l’Europe

7 LSC - François Duval EN-EL 30/08/2013

Network Incidents

- EMD223/BE Trip for Earth Fault protection- 18 kV Cable link BE-ME68 failed in 3 points - Autotransfert tests foreseen by beginning August shifted

to September.- Cable repaired.- Fault analysis (EDMS 1303412) reported the cause in

component ageing increasing partial discharges.

2. MP2 18 kV cable link failure seen from the Prévessin Main s/s on Route de l’Europe

8 LSC - François Duval EN-EL 30/08/2013

Network Incidents

3. 18 kV voltage transformer failure at the Prévessin Main s/s

9 LSC - François Duval EN-EL 30/08/2013

- EMD215/BE Trip for Imax (3 Phase SC, 18 kA) protection- 18 kV TP (EMD213/BE cubicle) blasted 120 sec. after

energization (cubicle damaged as well).- During commissioning, no impact on operation.- All internal parts of the cubicle were replaced.- Fault analysis (EDMS 1308284) reported the cause in

voltage transformer overload

3. 18 kV voltage transformer failure at the Prévessin Main s/s

Network Incidents

10 LSC - François Duval EN-EL 30/08/2013

Network Incidents

4. MP2 18 kV cable link second failure seen from the Prévessin Main s/s on Route de l’Europe

11 LSC - François Duval EN-EL 30/08/2013

Network Incidents

- EMD223/BE Trip for Earth Fault protection- 18 kV Cable link BE-ME68 (PS machine) recently repaired &

failed again- No impact on operation.- Decision made to not use it anymore.- Temporary (until LS2) solution found using one set of future

MP10 Cable link already pulled (this link is made of 4 sets of 3 cables 4X15 MVA)

- Fault analysis (EDMS 1308394) reported the probable cause in partial discharge

4. MP2 18 kV cable link second failure seen from the Prévessin Main s/s on Route de l’Europe

1) Configuration before LS1

Network reconfigurations

2) Maintenance 400 kV

Network reconfigurations

3) 66 kV works

Network reconfigurations

4) Today (as before LS1 but for MP2)

Network reconfigurations

Work in progress

All LHC points :• UPS replacement• AUG improvement• Maintenance on 18 kV• Diesel’s PLC

Maintenance 66 kV S/SNew protection system 66 kV

Maintenance HTB 400 kV

More than 100 operations on the HV network during August 2013 higher risk of failure

Network operation

Report on activities

AUG tests on all CERN sites in 2013 80% complete

Safety network tests September 3rd

“Autotransfert” tests September 12th

Tests

Progress of Projects

Maintenance & consolidation

Power transformers & S/S

400 kV

90% complete

Maintenance, extension, consolidation

Power transformers & S/S

66 kV 90% complete

Replacement of the Protection System

SEH9 – BE9 – LHC 1,2,4,8

66 kV 85% complete

New S/S and power transformer

Meyrin Site MEH59 66 kV 90% complete

Report on activities

Progress of Projects

Cubicle maintenance (500)

All CERN sites 18 kV 50% complete

Switchgears extension LHC1,2,5,8 BE 3.3 & 18 kV

30% complete

Switchgears replacement

LHC 4,6 18 kV 40% complete

New switchboards ME59, BE91,BA5 66 kV 50% complete

New PLC system for normal/safety network

B513 (ME43) 18 kV 90% complete

New substation commissioning: HV & Diesel network, CCC feeders…

BE91 18 & 3.3 kV

60% complete

SPS cable network: connections & commissioning

SPS BAs & Prevessin 18 kV 20% complete

Report on activities

Low Voltage: distribution & safety networks, UPSs

UPS replacement LHC, SPS, PS, MEY 25% complete

New UPS distribution for the experiments

LHC1,2,5,8 50% complete

Consolidation Normal/safety networksPLCs & switchgears

LHC 40% complete

New redundant distribution including UPSs for the CCC

BE91 60% complete

Consolidation/replacement of 48V distribution

BE, SDX1, ME49, SEH9…)

30% complete

Switchgear maintenance LHC mainly 40% complete

New power distribution PS ME85 80% complete

R2E LHC 45% complete

Consolidation for CV, EPC, CRG, Exp.

Mainly LHC 10% complete

AUG reliability increase campaign

All CERN 20% complete

Don’t Forget all the cabling activities reported separately

Various

21 LSC - François Duval EN-EL

Invoicing and payments

The groups requested to pay in 2013 as much as possible the work done in 2013

Down payments exist in all EN/EL contracts(Not limited to LS1)

Down payments are allowed with contractual restrictions For each order (OSVC) higher than 20 kCHF Up to 80% of the work actually carried out (No payment in

advance!)

Work progress is recorded once a week by the contractors in the EL information system

Down payments are requested by the contractors, checked and paid by CERN in monthly settlements

30/08/2013

22 LSC - François Duval EN-EL

Invoicing and payments

Accounting summary (after the settlements of August 2013). 4 installation contracts (C202: MZ-DRAKA, C209: SPIE,

C210: EMTE, E094B: CEGELEC)

Ratio is 1.3/(12.7+4.3) = 8% eligible but not yet paid EL is committed to improving this ratio for the 2013 yearly

settlement 30/08/2013

MCHF

Already paid in 2013 (charged on Group Budget Codes)

Finished work 4.3

Commitments Work in progress 12.7

Down payments already paid

5.2

Expected down payments in the settlements of September 2013

1.3