Electrical Design and Drafting II

PROGRAMME: HND IN ELECTRICAL/ELECTRONIC ENGINEERING TECHNOLOGY (ELECTRICAL MACHINES & POWER OPTION)

Course: ELECTRICAL DESIGN AND DRAFTING II Course Code: EEP 438 Contact Hours: 1/0/3

Course Specification: Theoretical Content & Practical content

General Objective 1.0: Design and draft industrial motor controls.

WEEK Specific Learning Outcome:

1 - 3 Protection and control system design 1.1 State the regulation pertaining to industrial motor control. 1.2 List symbols used in connection with 1.1 1.3 Define ladder diagram and state its purpose 1.4 Draw a typical ladder diagram and explain how it works. 1.5 Draft standard symbols used in ladder diagrams and identify them. 1.6 Explain how to read ladder diagrams. 1.7 Explain how to draw ladder diagram logically 1.8 Draft the control circuit of an automatic reclosure scheme and explain its operation. 1.9 Identify all the major equipment in the system of 1.8 above. 1.10 State particular areas of its application 1.11 Draft the control circuit of a typical intrinsically safe remote system. 1.12 Identify all the major equipment in the system of 1.11. 1.13 Explain the operation of the system. 1.14 State particular areas of application 1.15 Draft the control circuit diagrams for: a. Direct-on-line starter; b. Star-delta starter; c. Reversing starter. 1.16 Identify all the major components in the system in 1.15. 1.17 Design control circuit diagrams for given engineering situations. 1.18 Draft industrial motor control circuits. Teachers Activities Resources

- Sketch diagram for the various starter and - Drawing materials

state practical applications

PROGRAMME: HND IN ELECTRICAL/ELECTRONIC ENGINEERING TECHNOLOGY (ELECTRICAL MACHINES & POWER OPTION)

Course: ELECTRICAL DESIGN AND DRAFTING II Course Code: EEP 438 Contact Hours: 1/0/3

Course Specification: Theoretical Content & Practical content

General Objective 2.0: Understand the elements of Power substation up to 11kV.

WEEK Specific Learning Outcome: Teachers Activities Resources

4 - 6 2.1 Explain the IEE and NSE CAP? 2.2 Identify loads to which diversity factor could be applied and those to which it could not. 2.3 Apply "Growth Factor" to load estimation. 2.4 Solve problems on load estimation for transformers, generators and switchgears. 2.5 State the regulations and standards which influence the design and manufacture of switchgears. 2.6 Explain IEC 439 and NSE CAPS which deals with factory built assemblies of switchgears. 2.7 Define industrial switchboard and cubicle switchboard. - Use questions and answer to discuss the various regulations

2.8 Explain the information required in specifying switch Board. 2.9 Solve problems on calculation of switchgear and cable. 2.10 Explain the layout of a typical scheme in a factory. 2.11 Draft the layout of the scheme.

General Objective 3.0: Understand the elements of Power substation up to 11kV.

WEEK Specific Learning Outcome: Teachers Activities Resources

7 - 8 3.1 Estimate the load requirement of a medium size factory highlighting. a. Load survey; b. Estimation based on floor area. -Assist the students to design and draw - Drawing materials

substation

3.2 Determine the conductor size for 1.1 above. 3.3 Determine substation location based on load centre. 3.4 Identify substation equipment and explain their uses. 3.5 Select the ratings of the equipment in 1.4 above. 3.6 Draft the layout diagram of the equipment in 5.4 above.

PROGRAMME: HND IN ELECTRICAL/ELECTRONIC ENGINEERING TECHNOLOGY (ELECTRICAL MACHINES & POWER OPTION)

Course: ELECTRICAL DESIGN AND DRAFTING II Course Code: EEP 438 Contact Hours: 1/0/3

Course Specification: Theoretical Content & Practical content

General Objective 4.0: Understand the purpose of blue prints, how the final design is arrived at and the type of information that could be extracted From blue prints.

WEEK Specific Learning Outcome: Teachers Activities Resources

9 - 12 4.1 Explain the purpose of preliminary design. 4.2 State the various statutory regulations, relevant codes of practice and i.e.e. and NSE CAPs Regulations which the design must fulfill. 4.3 Explain final design and the preparation of blue prints. 4.4 Define contract documents and specifications. 4.5 Explain the requirement for preparing estimate for electrical projects. 4.6 Explain the principle of estimating materials from drawing. 4.7 Define: a. Unit rate; b. Cost on site; c. Cost of installation. 4.8 Explain how labour costs are estimated. 4.9 Explain how plants and transport requirements are assessed for a particular project. 4.10 Define the following as applied to electrical contracting: a. Bills of Engineering and Measurement Materials b. Lump sum c. Fixed price d. Fluctuation e. Overhead f. Variation g. Insurance 4.11 Prepare bills of Engineering Management and Materials and write specifications for various electrical designs. 4.12 Prepare a post contract document (PC) for 4.1 to 4.11 above.

- Explain by the use of examples. - A

- Text books

practical project.

PROGRAMME: HND IN ELECTRICAL/ELECTRONIC ENGINEERING TECHNOLOGY (ELECTRICAL MACHINES & POWER OPTION)

Course: ELECTRICAL DESIGN AND DRAFTING II Course Code: EEP 438 Contact Hours: 1/0/3

Course Specification: Theoretical Content & Practical content

General Objective 5.0: Understand and apply the various factors necessary when planning and managing electrical projects.

WEEK Specific Learning Outcome: Teachers Activities Resources

13 - 15 5.1 Define sub-contractor and identify jobs which could be awarded as a sub-contract. 5.2 Define bar chart. - Teacher should use graph to explain

5.3 Explain master chart and the sub-contractor charts and their uses. 5.4 Draw a bar chart for a building construction programme (main contractors bar chart) and interpret it. 5.5 Draw an electrical contractor's chart from the main contractor's bar chart and interpret it. 5.6 Solve problems on bar chart construction 5.7 Explain the uses of the following:- 1. Site diary 2. Materials record book 3. Accident book. 5.8 State and explain the responsibilities of site supervisors. 5.9 List and explain the things a good site supervisor should know. 5.10 Explain the condition for appointing safety supervisor. 5.11 List types of information that should be passed on to factory inspector. - Drawing materials

ASSESSMENT: Course work 10%; Course tests 10%; Practical 20%; Examination 60%.