TATKARE CHARITABLE TRUST
SMT.GEETA D TATKAR POLYTECNIC, GOVE
Third year Electrical Engineering
A micro project on
“SINGLE LAMP CONTROLLED BY THREE POINT
METHOD
Submitted to
Electrical Department
Submitted by
1.Sarvesh Nikam (2215810122)
2. Chandraknat Gajmal (23152460505)
3. Pritesh Jamdade (23152460509)
4. Dilip Ghadge (23152460515)
Under the Guidance of
MRS. NIDHI DHASADE
Annexure – I B
PART A
SINGLE LAMP CONTROLLED BY THREE POINT METHOD
1.0RATIONAL.
Three way control: A lamp can be controlled from three different locations. The
circuit needs an intermediate switch along with two number 2-way switches.
Intermediate switch has two states namely straight and cross-connection. Each of the
switches simply supplies two outputs from one voltage source for one end and one
output from two voltage sources at the other end. The lamp ties to the one wire in the
middle at either end of the lamp. The neutral is switched As is the hot, but each switch
reverses them so a complete circuit through the lamp only happens if an odd number
of switches is in the ON position. These are called One Pole, Double Throw switches
as opposed to a standard lamp switch that is One Pole, Single Throw. Three-way
switching or (Four-way circuits in the US) connection is used to control electrical
appliances and equipment like fan, lighting points etc. from more than two places.
The most common applications of this configuration is staircase wiring, hallway &
corridor wiring, hostel wiring, hospital wiring, tunnel wiring, godown wiring etc.
where a light bulb is controlled from two, three or even more places for ON and OFF
operations.
2.0 LITERATURE REVIEW.
01. The aim of these micro project is to study the single lamp controlled by three point
method.
02. We also study the importance of single lamp controlled by three point method.
03. As there are so many advantages and disadvantages of single lamp controlled by three
point method.
04. We also get know that to experience the different lamps controlled by three point
method.
3.0 PROPOSED METHODOLOGY.
01. We collected the information about given topic on various sites on internet.
02. We discussed about different types of controlling method.
03. We all discuss what to make a model and then prepare a report.
04. Then we make a report on the micro project.
05. We all submit the micro project with model and report.
3.0ACTION PLAN.
Sr. Details of activity Planned Planned Name of
No. Start date Finish Responsible
date Team Members
1 Mam give the topics of micro 24/08/202 26/08/202 All members
project and then we choose the topic. 4 4
2 We discuss about the major 26/08/202 13/09/202 All members
accidents in industries. 4 4
3 We search the information about the 13/09/202 28/09/202 All members
accidents in industries on Internet. 4 4
4 We search the information about 15/10/202 15/10/202 All members.
Case study of the accidents in 4 4
industries in books for project work
report
5 We start the project and half 28/10/202 28/10/202 All members
completed 4 4
6 We completed project report & 30/10/202 30/10/202 All members
submitted report 4 4
4.0RESOURCES REQUIRED.
Sr. Name of Specifications Qty Remarks
No. Resource/material
1 Internet. Standard As per
requiremen Ok
t
2 Reference book. Illumination and 1
electrifications of Ok
buildings
3 Bulbs , switches , wires 100w bulb , 3 switches. 1 Ok
• ADVANTAGES OF SINGLE LAMP CONTROLLED BY THREE POINT
METHOD.
1. The ability to control a single device from three separate location.
2. Easy to operate.
• DISADVANTAGES OF SINGLE LAMP CONTROLLED BY THREE POINT
METHOD.
1.At present such three- way switching circuits use exclusively mechanical switches, with
their inherent disadvantages.
2. In particular arcing which is liable to lead to serious deterioration of the electrical
contacts and generate noise.
• WIRING DIAGRAM.
The wiring diagram shows how to control a light point from three different places by using
three way switches and an intermediate switch.
The following wiring diagram shows how to control a light bulb from three different places
using two 2-way (or 3-way) switches and an intermediate switch or 4-way switch.Three-way
switching or (Four-way circuits in the US) connection is used to control electrical appliances
and equipment like fan, lighting points etc. from more than two places. The most common
applications of this configuration is staircase wiring, hallway & corridor wiring, hostel
wiring, hospital wiring, tunnel wiring, godown wiring etc. where a light bulb is controlled
from two, three or even more places for ON and OFF operations.
Annexure – II B
PART B
SINGLE LAMP CONTROLLED BY THREE POINT METHOD
1.0 RATIONALE
Three way control: A lamp can be controlled from three different locations. The circuit
needs an intermediate switch along with two number 2-way switches. Intermediate switch
has two states namely straight and cross-connection. Each of the switches simply supplies
two outputs from one voltage source for one end and one output from two voltage sources
at the other end. The lamp ties to the one wire in the middle at either end of the lamp. The
neutral is switched As is the hot, but each switch reverses them so a complete circuit
through the lamp only happens if an odd number of switches is in the ON position. These
are called One Pole, Double Throw switches as opposed to a standard lamp switch that is
One Pole, Single Throw. Three-way switching or (Four-way circuits in the US) connection is
used to control electrical appliances and equipment like fan, lighting points etc. from more
than two places. The most common applications of this configuration is staircase wiring,
hallway & corridor wiring, hostel wiring, hospital wiring, tunnel wiring, godown wiring etc.
where a light bulb is controlled from two, three or even more places for ON and OFF
operations.
2.0 COURSE OUTCOMES INTEGRATED
Select the lighting accessories required for selected wiring scheme.
3.0 LITERATURE REVIEW
01. The aim of these micro project is to study the single lamp controlled by three point
method.
02. We also study the importance of single lamp controlled by three point method.
03. As there are so many advantages and disadvantages of single lamp controlled by three
point method.
04. We also get know that to experience the lamps controlled by three point method.
4.0 ACTUAL PROCEDURE FOLLOWED.
01. We collected the information about given topic on various sites on internet.
02. We discussed about different types of controlling method.
03. We all discuss what to make model and then prepare a report.
04. Then we make a report on the micro project.
05. We all submit the micro project with model and report.
5.0 ACTUAL RESOURCES USED .
Sr. Name of Specifications Qty Remarks
No. Resource/material
1 Internet Standard As per Ok
requiremen
t
2 Reference book Illumination and 1 Ok
electrifications of
buildings.
3 Bulbs , switches, wires 100w , 3 switches. 3 Ok
6.0 OUTPUTS OF THE MICRO-PROJECTS
01. We study the different uses of single lamp controlled by three point method.
02. We learn how to operate the lamp by three way switches.
03. We also get to know that now we can control our home or any appliance.
7.0
SKILL DEVELOPED / LEARNING OUT OF THIS MICRO-PROJECT
01. We learn how to make the report and model on the given topic.
02. We also learned the single lamp controlled by three point method and their
application.
03. Then we studied the advantages and disadvantages and how it can be used for
different proposes.
8.0 APPLICATIONS OF THIS MICRO-PROJECT.
0.1 It is used to control electrical equipment and appliances from two different locations
0.2 It is also used in staircase wiring connections where a light point can be controlled
from two or more different places.
0.3 It is used in large area premises, rooms, halls having two or more entry and exit
points.
0.4 The main purpose of 2-way & 3-way switching is to control an electrical appliance,
device or equipment, especially light points from two places.
9.0 AREA OF FUTURE IMPROVEMENT
1. Developing or under developing countries.
2. Smart cities.
3. Developing or new city.
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