Learning outcomes

On successful completion of

this unit a learner will:

Assessment criteria for pass

The learner can:

LO1 Understand the operation of

power transformers

1.1 explain the construction of different types of power

transformer

1.2 identify the operating principles of a power

transformer under no-load and load conditions

1.3 discuss the modes of connection for polyphase

Transformers

LO2 Understand the applications

of circuit protection for

distribution and installation

systems

2.1 explain the construction of over-current protection

devices

2.2 explain the operating principles of circuit overcurrent

protection devices

2.3 explain the operating principles of earth fault

protection devices

LO3 Understand the design and

construction of lighting

systems

3.1 explain the construction, operation and associated

circuitry of common lamp types

3.2 explain the principles of good lighting design

3.3 plan a light scheme

LO4 Be able to determine the cost

of energy used in a system in

order to be energy efficient

4.1 discuss the factors governing tariff structures

4.2 analyse methods for reducing energy consumption

4.3 determine the cost of energy used in a system

LO5 Understand the operation of a

polyphase induction motor

5.1 describe the types and explain the construction of

induction motors

5.2 explain the operating principles and methods of

starting induction motors

5.3 analyse the methods of speed control of induction

motors.