At the end of this presentation the electrician (or future electrician) will be able to detail the
contents of high and low voltage switchboards and more specifically be able to:
Differentiate the different types of HV cubicle (the term "cell" is also commonly
used)
Explain the functions of the different types of HV cubicle
List the accessories equipping the HV cubicles
Explain how the different current transformers work and give their specific features
and references
Idem for the voltage transformers
Name the types of HV starters and their protections
Define the locking (lockout) systems between HV and LV cubicles
Design an LV switchboard (at least know the principle)
Explain the operation of the different starters for LV motors requiring the use of
starting systems
Explain how a soft starter works
Explain how a frequency regulator (also known as "variable frequency speed drive")
works
Etc
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