MG6117 – Power Distribution
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To enable students to understand three-phase power systems with an emphasis on distribution systems and building services.
- Directed hours
- Self directed hours
- Total learning hours
- Learning Outcomes
- 1.Compare neutral-earthing methods for LV, and MV distribution systems (to zone sub distribution voltages).
2.Apply knowledge of electrical earthing systems to buildings.
3.Apply the theory of power cables for LV and MV distribution systems.
4.Apply fault calculations to an electrical system.
5.Describe the process of current interruption.
6.Describe SLD building electrical services, heating ventilation systems and cabling requirements.
7.Explain the operation of switchgear and fuses (LV and MV).
- Neutral-earthing methods, insulated neutral, resistance earthed neutral, solidly earthed neutral for LV and MV distribution.
Construction and operation of power cables, insulation, conductor material, formation of conductors, current capacity, capacitance, inductance, losses, and installation.
Principles of electrical reticulation within buildings and outdoor installations and the intent and application of the Electricity Regulations and Electrical Codes of Practice.
Cables for providing electrical reticulation for given building applications are identified and justified in accordance with industry practice based on load, temperature, and fault level and installation method.
The heating load of a building for a given environmental condition
Causes of faults and their effects, limiting fault currents, fault magnitudes for both symmetrical and unsymmetrical faults.
Parameters on a current interruption oscillogram.
Current making and breaking capacities of switchgear and fuses.
- Assessment Criteria
- Assessment 1Assignment10