Substations are the key assets in any power system and serve as important nodes in a transmission and distribution network. Substations thus handle multiple voltages in a given location and link two or more systems of different voltages. Learn more in the Competency in Substation Design (Control, Protection and Facility Planning) programme at Engineering Institute of Technology.
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In the first part of this two-part certificate series, the participants are given a thorough understanding of the basic principles of substation design, configuration of a substation, the specification/selection of equipment based on a selected configuration, conducting system studies to verify/correct the initial assumptions and to plan the layout of the substation.

In this part, the focus will be on the other subsystems that perform essential functions in substations. These include earthing/grounding, lightning protection of outdoor equipment and substation buildings, power system protection, control and interlocking equipment including the auxiliary power sources and various switchyard facilities such as foundation, structures, cable routing, lighting, fire protection and surveillance equipment.

The programme

Earthing of a HV switchyard requires careful design as it has a direct bearing on safety. The design approach to switchyards will be discussed and the basic methods of calculation will be outlined. 

Lightning is a common occurrence which poses a threat to substation equipment and supply reliability by causing overvoltage surges resulting in insulation failure or spark over. While lightning cannot be prevented, its effects can be minimised by proper lightning and surge protection measures.

Any electrical equipment is susceptible to insulation failures. Protection against such failures and the resulting short circuits is a vital need in power systems. The various protection options available to the designer and the protection of busbars, transformers and substation feeders will be discussed in two parts. 

Another essential system is the control of switchyard equipment and the auxiliary power supply required for control. Ac auxiliary power is generally used for operation of isolators/disconnectors, the operating mechanism of circuit breakers and for substation lighting. 

Essential functions are powered through dc supply backed with batteries for reliability. This includes control, annunciation and protection functions, breaker close and trip commands and in some cases emergency lightning.

A switchyard has to be properly planned by preparing the site, measuring earth resistivity required for earthing design/optimisation, earth work, foundations, cable trenches inside the switchyard, draining arrangements etc. These aspects will be covered in detail in a separate module. The last module will discuss about gas insulated switchgear as an alternative to outdoor open type switchyards.

All the above topics will be dealt in this course using a simple step-by-step approach through real life examples. The basic design approach and calculations will be performed by the students to clearly understand the concepts that are being taught.

There will be 12 modules covered in 3 months to give the students adequate time to try and apply the concepts learnt in the modules in the context of their workplace and discuss them with the course facilitator. The contents and sequence of the modules can be seen in the course outline.

Learn more in the Competency in Substation Design (Control, Protection and Facility Planning) programme at Engineering Institute of Technology.

Detailed Programme Facts

  • More details:

    Deadline: one week before the start date.

  • Programme intensity Part-time
    • Average part-time duration 3 months
    • Intensity 5 hrs/week
    • Duration description

      You are expected to spend approximately 5-8 hours per week. This includes attending fortnightly webinars that run for about 90 minutes to facilitate class discussion and allow you to ask questions. This professional development program is delivered online on a part-time basis and has been designed to fit around full-time work. 

  • Languages
    • English
  • Delivery mode
    • Time flexibility
    • Attendance
      Regular mandatory meetings
    • Teacher support
      Proactive tutoring and support
    • Student interaction
      Individual work/assignments (with online group discussions)
  • More information Go to the programme website

Programme Structure

Courses include:

  • Module 1: Earthing System of Switchyards
  • Module 2: Example of Switchyard Earthing System Design
  • Module 3: Lightning Protection of Switchyards
  • Module 4: Example of Switchyard Lightning and Surge Protection Design
  • Module 5: Protection Design for Substation-1
  • Module 6: Examples/case Studies of mv Substation Protection

English Language Requirements

This programme may require students to demonstrate proficiency in English.

General Requirements

CRICOS Provider Number - 03567C

Tuition Fee

Please contact EIT for detailed fee information

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