Laurent Mercier
Senior Electrical Engineer | MV/LV Power Distribution & Protection Systems
Paris
Executive Summary
Senior Electrical Engineer with extensive practice in medium- and low-voltage power system design, protection coordination, and substation engineering for industrial and critical facilities. Proficient in French and European electrical standards, short-circuit modeling, and commissioning oversight.
Work Experience
Veymont Électrotechnique
Paris, France
Lead Electrical Engineer
Mar 2019 – Present
- Lead technical engineering and specification reviews for MV/LV power distribution architectures across high-demand industrial facilities and tertiary complexes.
- Supervise protection coordination studies, short-circuit calculations, and arc flash assessments using ETAP and Caneco BT.
- Coordinate multi-disciplinary site commissioning tests, factory acceptance testing (FAT), and compliance audits under French NF C 13-100 and NF C 15-100 standards.
- Advise client project directors on energy efficiency retrofits, power factor correction, and harmonic mitigation measures.
Navier Énergie & Systèmes
Saint-Denis, France
Senior Electrical Power Systems Engineer
Sept 2012 – Feb 2019
- Engineered electrical network protection plans and emergency generator changeover logic for mission-critical infrastructure projects.
- Authored detailed design packages, single-line diagrams, and equipment specifications for dry-type transformers, switchgear, and UPS systems.
- Collaborated with utility operators (Enedis/RTE) to define grid connection requirements and substation interfaces up to 20 kV.
- Mentored junior electrical engineers in load flow simulations and cable sizing methodologies.
Lumor Industrie
Courbevoie, France
Electrical Systems Engineer
Apr 2007 – Aug 2012
- Developed electrical control panels, motor control centers (MCC), and programmable logic controller (PLC) interfacing schematics for automated assembly plants.
- Carried out site acceptance testing (SAT) and troubleshooting of variable speed drives, backup generators, and distribution boards.
- Maintained technical documentation and electrical layout drawings in compliance with European machinery safety directives.
Education
CentraleSupélec
Diplôme d'Ingénieur (equivalent to M.Sc. in Electrical Engineering) · Electrical and Energy Engineering · Gif-sur-Yvette, France · Distinction · Sept 1994 – Jun 1997
Specialized in power systems, electrical network stability, high-voltage equipment, and automated control systems. Completed final capstone design on selective protection coordination for industrial sub-stations.
Key Projects
Industrial Distribution Network Modernization
Feb 2023 – Aug 2024
- Designed the complete medium-voltage network and dual-redundancy transformer arrangement for a 15 MVA suburban logistics and cold-storage hub.
- Modeled fault clearing times and protection curve selectivity across 32 feeder circuits using Caneco BT and ETAP, eliminating nuisance trips during peak load transfers.
Critical Power System Upgrade
Jan 2021 – Oct 2021
- Engineered an uninterruptible power supply and emergency backup system featuring two 1,250 kVA diesel generators and static transfer switches for an institutional medical laboratory.
- Verified selectivity and short-circuit withstand ratings through comprehensive site loop-impedance testing prior to utility energization.
Technical Skills
MV/LV Power Distribution
Protection Coordination
ETAP
Caneco BT
NF C 15-100 & NF C 13-100
Harmonic Analysis
Arc Flash Hazards
Switchgear & Transformers
UPS & Backup Power Systems
AutoCAD Electrical
Languages
French
C2
English
C1
Certifications
Certified Energy Auditor (NF EN 16247)
AFNOR Certification · May 2021
Qualification in Industrial Electrical Engineering Design (OPQIBI 1412)
OPQIBI · Nov 2022
Community Involvement
Ingénieurs Solidaires d'Île-de-France
Paris, France · Oct 2018 – Present
- Technical Mentor
- Deliver guest lectures and mentoring sessions on electrical safety standards and industrial engineering practices for final-year engineering students.