EMC of systems and installations

Goals

The objectives of the training EMC of systems and installations :

Upon completion of this training course, participants will be able to take all key EMC parameters into account when wiring and implementing an industrial system.

The goal of this training is to:
• Learn to identify EMC risks for a system or installation
• Be able to identify the main sources of interference
• Recognize and understand the coupling mechanisms involved
• Master appropriate protection methods and their industrial implementation
• Adopt an approach to resolving EMC problems

Session dates:
• from 22/06/2027 to 25/06/2027 - Vélizy
• from 05/10/2027 to 08/10/2027 - Grenoble
• from 07/12/2027 to 10/12/2027 - Vélizy
Contact: +33 04 76 49 76 76 | formation@sopemea.fr

Financial details:
• Financial assistance options based on your status (Company, Employee, Job Seeker) through your OPCO, France Travail, or any other funding agency
• Not eligible for the Professional Training Account (CPF)

Program

1 - Introduction
• EMC of an industrial system
• Definitions/units
• Developments in electronics
• Envelope detection
• Time/frequency reciprocity


2 - Conducted disturbances
• Differential mode disturbances
• Common mode disturbances
• Conductor impedance
• Common impedance
• Equipotentiality of masses
• Mesh impedance
• Board-to-chassis coupling
• Crosstalk


3 - Radiated disturbances
• What is an EM field?
• Electric/magnetic field
• Field propagation and reflection
• Effect of EM fields on electrical conductors
• Critical frequencies, orders of magnitude


4- Human risks
• Risk of electrocution
• Recommendation 1999/519/EC
• Directive 2013/35/EU
• Exposure levels


5 - Sources of interference
• Field radiated by a radio transmitter
• High-frequency industrial equipment
• Electrostatic discharges
• Characteristics of lightning strikes
• Causes and effects of lightning
• Overvoltages when coils open
• Sources of 50 Hz magnetic fields
• Rectifier bridges
• Switching power supplies
• Variable speed drives


6 - Power supply
• Power supply network quality
• Impact of neutral systems on EMC
• TT system
• TN-C and TN-S systems
• IT system


7 - Earth
• Roles of earth, neutral and PE
• Are multiple earths required?
• Earth resistance measurements
• Setting up an earth network
• Protecting a building against lightning
• Connecting a lightning conductor to earth


8 - Earth networks
• Regulations and earthing
• Star earths and earth loops
• Effect of earth loops
• Mesh earth network
• Earthing of equipment
• Island cabling: cabinets, technical rooms
• Grounding connections


9 - Interconnection cables
• Principle of the reducing effect
• Cable shielding
• Where to connect the shields?
• New best practices
• Implementation of connectors
• Symmetrical connections
• Low-level connections
• Digital connections
• Galvanic isolation
• Isolation transformers
• Cable trays and conductive structures
• Implementation of cable trays
• Cable classification, cabling rules
• Specific cases


10 - Protection and filtering
• Surge arresters
• Spark gaps / surge arresters / limiters
• Installation of surge arresters
• Choice and installation of a mains filter
• Isolation transformer
• Role of ferrites
• Choice and implementation of ferrites


11 - Screens and shielding
• Role and operation of shielding
• Shielding leaks
• Treatment of openings
• Conductive joints, contacts, continuity
• Examples of magnetic screens
• Practical solutions


12 - Installation
• Choosing EMC solutions
• Structure meshing
• Conductor penetrations
• Protection coordination
• Copper or fibre optic connections?


13 - Validation
• How to assess a system's immunity?
• Checking ground connections
• On-site immunity testing
• Choosing a test generator
• Immunity to fast transient bursts
• Immunity to walkie-talkies


14 - Remedies<
• EMC faults: what to do?
• On-site diagnostics and analysis
• Correction method
• Specific instrumentation
• Use of HF current clamp
• Use of Moebius probe
• Orders of magnitude, examples of remedies
• Practical case