UNIT- I Electric Shop- II
1.1 Introduction to single phase and three phase supply and wiring system. Importance of three phase supply (RYB) & its sequence and wiring system.
Job I Connecting Generator and 3 phase wiring through Change over Switch.
1.2 Estimating and costing of power consumption
Job II Connecting single phase energy meter with supply and load. Reading and working out power consumption and cost of energy.
1.3 Study of internal wiring diagram of common electrical appliances such as auto electric iron, electric kettle, ceiling/table fan, desert cooler etc. Demonstration of dismantling, servicing and reassembling of table/ceiling fan, air-cooler, auto electric iron, heater etc.
Job III Dismantling, servicing and reassembling of any of the above electrical appliances,
finding faults with series testing lamp and multimeter.
1.4 Identification and familiarization with the following tools: Soldering Iron and its use.
Job IV Practice on joining using soldering flux and removing components/wires by desoldering
UNIT II Various types of protective devices such as: wire fuse, cartridge fuse etc
Demonstrate the joining (or connecting) methods/mounting and dismantling method, as well as uses of the items mentioned below:
a) Various types of plugs, sockets, connectors suitable for general purpose audio video use. Connectors, Banana plugs, sockets and similar male and female connectors and terminal strips.
b) Various types of switches such as: normal/miniature toggle, slide, push button piano key, rotary, SPST, SPDT, DPST, DPDT, band selector, multi-way Master Mains Switch.
Job-I Cut, bend, tin component, leads, inserts. Solder components e.g. resistor, capacitor, diodes, transistors on a PCB
Job-II Wiring of a small circuit on a PCB/tag strip involving laying, sleeving and use of identifier tags
Job-III De-soldering practice with de-soldering pump and with de-soldering wick.
Job-IV Cut, strip, join and insulate two lengths of wires/cables (repeat with different types of cables/ wires)
UNIT III Printed Circuit Board (PCB) shop
Introduction: What is PCB, Difference between PWB and PCB, Types of PCBs: Single/Double Sided and Multi-Layer PCBs, PCB Layer Masks: Top Layer Mask, Bottom Layer Mask, Solder Mask, Legend Print or Silk screen Mask, Hand-Taping Vs CAD PCB Materials: FR-2 and FR-4 material advantages and disadvantages, PCB Design Rules.
UNIT IV Computer Aided Design
Brief History of EDA, Latest Trends in Market, How it helps and Why it requires, Different EDA Tools (Licensed like Orcad or Free Open Source Software like Circuit Maker or Dip Trace or Eagle etc.), Schematic Entry, Net listing, Electrical Rule Check (ERC), PCB Layout Designing, Auto and Manual Routing, Design Rule Check (DRC), Gerber Generation, Creating Library, Creating component, Symbols and Footprints for components.
UNIT V Fabrication
Photo Processing for Pattern Transfer, Etching, Drilling, Component Mounting, Soldering and De-soldering, PCB Testing, PCB design and fabrication of Basic Analog Electronic Circuits, Power Supplies, 555 Based circuits etc.
Rs.200
15.00% off