This module aims at equipping the learner with skills, knowledge and attitudes required to
apply advanced computer skills that facilitate effective learning at the workplace. After
completion of this module, learner will be able to apply computer fundamentals concepts,
design a professional word document, prepare a professional presentation, use
spreadsheets, and use the internet and search engines as well as using web based
applications software.
This module describes the skills, knowledge and right attitudes required to match the learning process with occupation, develop action plan to meet occupation standards and relate occupation with the labor market demand.
This module is intended for trainees pursuing Advanced Diploma in all engineering trades. The trainees will be able to identify the occupation and its learning processes. They will also be able to integrate in the working environment, set out the goals to perform the occupation and self-assessment.
This module encourages greater motivation and, subsequently, a better integration of various learning. The trainees will be able to independently develop a comprehensive and clear vision of the occupation and training program at professional level.
PV is emerging as a major power resource, steadily becoming more affordable and proving to be more reliable than utilities. Photovoltaic power promises a brighter, cleaner future for our children
The photovoltaic effect is the basic principal process by which a PV cell converts sunlight into electricity. When light shines on a PV cell, it may be reflected, absorbed, or pass right through. The absorbed light generates electricity; this is the topic one in this module.The solar energy conversion into electricity takes place in a semiconductor device that is called a solar cell( This is discussed in the Topic two of this module).A solar cell is a unit that delivers only a certain amount of electrical power. In order to use solar electricity for practical devices, which require a particular voltage or current for their operation, a number of solar cells have to be connected together to form a solar panel, also called a PV module. For large-scale generation of solar electricity, the solar panels are connected together into a solar array. The heart of a photovoltaic system is the solar module. Many photovoltaic cells are wired together by the manufacturer to produce a solar module. When installed at a site, solar modules are wired together in series to form strings. Strings of modules are connected in parallel to form an array. The produced Electrical energy is used to run different Loads including Domestic electrical appliances to perform different tasks (this is the third topic of this Module).Introduction
Fundamental concepts and definitions, Measuring errors and their causes, accuracy, precision, significant figures, calculations of static errors, Arithmetic mean, standard deviation. Instrument calibration
Bridges: principles of different configurations of designs, errors and their causes, applications of DC-bridges, AC-bridges.
Measuring using Cathode Ray Oscilloscope: Measurements with oscilloscopes-dc and ac current and voltages, phase, sensitivity, accuracy, frequency
Measuring instruments and methods:
Universal Counter/timer (Frequency, time, period, ratio, external signal, etc.). Digital-Voltmeters: Ramp type DVM, Successive approximation type DVM, Integrating type DVM, etc,
Multimeters-principles.
Power and power factor measuring instrument, Current Transformer and Potential Transformer, tachometer, Megger
Electrical measurements of non-electrical quantities: primary sensing elements-strain, force, displacement, flow, pressure, transducers-active, in active, and digital for various quantities. Strain and stress measurements, displacement and force measurements, pressure transducers, LVDT.
DC and AC Circuits: Concepts of direct current, Concepts of Alternating current, Generation of AC voltage, Equations of sinusoidal waveform ,Instantaneous ,Average and RMS value, Response of R,L and C elements, Active ,Reactive power and Power Factor. RL circuits, RC circuits, RLC circuits, Series & Parallel Resonance.
Polyphase Circuits: Generation of 3-phase emfs, their waveforms, equations &phasor representations, Interconnection of 3-phases, Star & Delta connected systems, Voltage & current relations in balanced 3-phase star/delta connections.
Network Theorems (AC & DC):Ohm’s law, Kirchhoff’s current and voltage law, Mesh-Current and Node Voltage analysis methods, Source transformation, Superposition theorem, linearity principles, Reciprocity theorem, Milliman’s theorem, Thevenin’s theorem Norton’s theorem their equivalents, Maximum power transfer theorem.