Engineering & Expertises
Our team works in close collaboration with you to design customized solutions and optimize your installations
We specialize in the design, support, testing and commissioning of your HV substations and networks. We offer a complete range of expertise over the lifetime of your installations.
Engineering
Research and design
We help you define your installation design requirements, for new projects, overhauls, modifications or extensions. We also integrate protection measures to fulfil your plans exactly.
- Electrical network modelling
- Design and architecture studies
- HV and MV studies and calculation notes
- HV / MV / LV protection studies and drawings
- HV / MV / LV manufacturing drawings and diagrams
Project management support
We help you steer your project from the design stage to the definition of equipment requirements and the choice of manufacturer, right through to the on-site installation.
- V1-preliminary design, V2-detailed design studies
- Creation of tender documents with budgeting
- Analysis of technical bids
- Works supervision
- Acceptance and as-built file
Testing and commissioning
We carry out the final phase of your project to ensure that the equipment and installations comply with current standards when they are commissioned.
- Setting protection relays
- Functional testing of installations
- Definition of commissioning procedures
- Installation commissioning
Administrative support
Prior to starting your project, we help you to anticipate the different milestones.
- TFP analysis
- Connection procedures
- Planning permission
- Connection agreement
- Operating agreement
Technical expertises
Oil analysis for transformers
Transfo Lab is our oil analysis laboratory for electrical transformers. We diagnose your transformers’ state of health, taking their type, characteristics and use into account.
- Different types of analyses: dissolved gas analysis (DGA), dielectric strength, water content, acidity index, analysis of furan derivatives / methanol, corrosive sulfur analysis, PCB analysis, etc.
- Fluid and gas sampling on site or using a supplied kit
- Analysis and diagnostic report
Training
As the heir to Merlin Gerin’s expertise, MasterGrid has trained thousands of professionals in the knowledge, maintenance and operation of high-voltage equipment, as well as the handling of SF6 gas.
