Study Guide

Objective

Know the principles of different electricity prices and tariffs and be able to make simple cost estimates.
Knowing the structure of electricity distribution networks.
Understand and be able to calculate voltage drops, overloads, short circuits and various disturbances in the electricity grid.
To be able to design conductors taking into account the permissible load, voltage drop and short-circuit resistance.
To be able to calculate the need for phase compensation.
To know the principle of different types of protection.
To know and be able to describe different grounding systems.
To be able to explain and calculate earth slopes in isolated networks.
To know the methods for inspections, checks and measurements.

Content

Electricity prices and different tariffs.
Construction of electricity distribution networks.

Voltage drop, overload, short circuit and various disturbances in the mains.
Design of conductors.
Phase compensation.
The principle of different types of protection.
Earthing systems
Groundings in isolated grids.
Inspections, checks and measurements.

Evaluation scale

H-5

Assessment criteria, satisfactory (1)

Know the principles of electricity distribution.
Knows about network construction and principle diagrams.
Knows about the effect of the reactive power on the net.
Can calculate electricity prices for ordinary consumers.
Can calculate voltage drop in mains.
Can measure ground resistance.

Assessment criteria, good (3)

Know the principles and methods of electricity distribution.
Can design low voltage networks.
Can calculate components for phase compensation.
Can calculate electricity prices for ordinary and special consumers.
Can calculate voltage drop and make judgments considering dimensions.
Can account for different earthing and make measurements of earthing resistance.
Understands the principles of earth fault protection in isolated networks.

Assessment criteria, excellent (5)

Know the principles and methods of electricity distribution.
Can design low voltage networks.
Can calculate components for phase compensation.
Can calculate electricity prices for ordinary and special consumers.
Can calculate voltage drop and make judgments considering dimensions.
Can account for different earthing and make measurements of earthing resistance.
Understands the principles of earth fault protection and can calculate earth fault currents and zero voltage at earth fault.

Qualifications

Electrical safety and measurement technology