Specialist Training

Introduction to Three Phase

This 2-day course is open to anyone wishing to improve their 3-phase knowledge and testing skills. It is also aimed at students wishing to improve their 3-phase knowledge prior to taking the City and Guilds 2394-01 and/or 2395-01.

Syllabus

  • DAY 1 – Introduction to 3-phase supplies
  •   Theory of 3-phase distribution
  •     Generation
  •     6 wire – 3 wire
  •     Phase relationship
  •     Relationship between U and Uo
  •     Voltage/current/power relationships
  •   UK sub-station
  •     Supply voltages
  •     Relationship with earth
  •     Line and Neutral
  •   Cable core identification
  •     Colour
  •     Numbers
  •     Letters
  •   3-phase distribution boards
  •     Isolation
  •     Bus bar arrangement
  •     Ferromagnetic effects
  •     Circuit numbering
  •   Wiring Systems
  •     T & E
  •     Armoured
  •     Non-sheathed/conduit/trunking
  •   3-wire and 4 wire arrangements
  •     Unbalanced loads
  •     Balanced loads
  •   Power Factor
  •   Motors
  •     Type B/C/D circuit breakers
  •     Fuses
  •     Overload calculations for wiring
  •     Overload protection for motor
  •     Star/Delta starting arrangements
  •     DOL starting arrangements
  •     Soft Starting arrangements
  • DAY 2 – Practical Applications
  •   Wire a single phase circuit from a 3-phase board
  •     Wire a 3-phase load
  •     Wire a motor
  •     Testing 3-phase circuits and recording the results
  •     Continuity
  •     Insulation Resistance
  •     Ze
  •     PFC
  •     RCD
  •     Functional

Booking Information

For details of course dates and pricing go to:

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