HV Network Planning and Design Course | EA Technology
+44 (0) 151 339 4181

HV Network Planning and Design

This course is built around the principle that HV planning and design tools are only as good as the person using them. To utilise planning tools effectively, good designers will fully understand what is required to be achieved and can recognise when outputs are incorrect.

This two-day course works towards this objective and combines the theory of network planning to relevant GB standards and legislation with the practice of carrying out load flow studies and calculations to ensure compliance with those standards. Fault Level, Voltage and Network Capacity Planning are all considered along with supporting knowledge in the areas of earthing design, basic HV protection and typical HV supply connection arrangements. The core concepts are reinforced through network design exercises using both hand calculations and software planning tools, enabling delegates to:

  • Understand how to configure power flow analysis tools in terms of slack bus, customer loads and generation
  • Complete basic network studies required to determine compliance with GB standards
  • Understand the studies required to determine the impact of generation and point of connections

Day one


  • Network planning within network constraints

Security and reliability

  • Licence conditions and standards
  • P2/6
  • Calculating network capacity
  • Understanding the balance between ratings and demand
  • Applying distributed generation for system support
  • Relating network equipment and network topology to the standard
  • Cost of loss of supply
  • P2/6 compliance exercise


  • HV network standards
  • Planning tools – customer modelling
  • Fault levels:
    • Equipment that is effected and why it has to be assessed
    • Introduction to G74 for determining contributions to short circuit currents at HV
  • Calculating fault levels and practical exercise

HV network earthing

  • Legislation and standards
  • Introduction to ROEP and impedance
  • Touch and step potentials
  • HV earthing design considerations
  • Hot or cold substation sites

HV protection systems

  • The role of protection systems
  • Types of protection found at HV
  • Understanding the values

Day two


  • Programme for the day – recap of day 1

Customer connection equipment

  • Essential components of any connection
  • Representing customers and sources of data for use in modelling demand

Network modelling

  • Power system modelling
  • Network modelling exercise:
    • Creation of a slack bus
    • Building a primary substation
    • Building a cable network
    • Representing existing customers
    • Adding a new customer

Capacity and fault level studies

  • Capacity and fault level study practical – perform a study on the network model:
    • Perform a security of supply study
    • Compare fault levels with hand calculation exercise
    • Determine compliance

Power quality

  • Legislation and standards relating to power quality
  • Statutory voltage limits and network common practice
  • Harmonic distortion
  • Standards and limits relating to voltage dips and flicker and the sort of loads to which they refer
  • Impact of generation on networks
  • Voltage study practical

Open discussion

Programme may be subject to amendment

Why attend?
No Available places left!


Course duration 2 Days

Course Location Capenhurst, Chester

EA Technology are accredited members of the CPD certification service. This course counts towards your planned CPD requirements.
CPD Information

12 Hours

Need some help?

Fill in the below form to be contacted about more course dates or if you have any other enquiries.


By submitting this form, you agree to the Cookies and Privacy Policy.