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Electrical Maintenance for Industrial Plants

IR/ELECMAIN
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Who should attend?

  • This course provides a better understanding of electrical equipment such as generators, motors and power grids. It includes performances, operation, maintenance, hazards and safety.
Audience :
  • Electrical technicians, supervisors and inspectors, operation and maintenance staff as well as reliability engineers.

Level : Foundation

Course Content

  • CHARACTERISTICS OF PLANT ELECTRICAL DISTRIBUTION

      • Purpose of electrical distribution, characteristics of the grid. One line electrical diagram.
      • Main grid, auxiliary grid, safety grid. Application to a typical grid.

  • SUBSTATION EQUIPMENT & WORKING PRINCIPLE OF SWITCHGEAR - MAINTENANCE

      • Purposes and uses of equipment, as well as its first level maintenance.
      • Operation and technical characteristics.
      • Transformers: purpose of transformer on a power grid; operating principle, single phase to tri phases; windings connection and protections. Preventive maintenance.
      • Circuit breakers: operating principle, technologies, main failures.
      • Cables, switchboards, equipment, relays, diesel generators, batteries, chargers and UPS. Equipment monitoring.
      • Gas insulated substation: principle and technology.

  • SAFETY EQUIPMENT & RELIABILITY

      • Main types of protections. Earthing system choice LV&HV: advantages and drawbacks.
      • Selectivity of protections: mains techniques. Protection relays. Insulation monitoring.
      • Hazardous area (ATEX) equipment: standards and maintenance rules.
      • LockOut - TagOut procedures (LOTO).

  • INDUCTION & SYNCHRONOUS MOTORS

      • Operation and technical characteristics (intensity, efficiency, power factor and torque).
      • Field of use of power and voltage range HV & LV. Technology and hazardous area (ATEX).
      • Variable speed drive, type of drives; consequences on the grid. Electrical protection of motors.
      • Synchronous motors: torque control, excitation, different technologies.
      • Induction motors: various types of starting according to the mechanical load & power of the motor. Constraints from the grid; maximal numbers of launches. Applications & case studies.

  • STEAM TURBINES GENERATORS

      • Main parameters of the steam turbine generator. Technology and operation of the electrical generator.
      • Isolated mode and coupling of the generator: impact on the grid.
      • Application: maintenance case studies.

Learning Objectives

  • Upon completion of the course, participants will be able to:
  • understand a plant grid and its structure,
  • master electrical equipment including motor operating principles,
  • detect the main disturbances and failures related to electrical motors,
  • list main maintenance procedures on these types of equipment,
  • understand the roles of the safety parts.

Ways & Means

  • Drawings and datasheets used in the industrial plants.
  • Practical exercises and case studies.