The document summarizes Ajay Meena's industrial training at Rajasthan Electronics and Instruments Ltd. in Jaipur, India from June 10 to July 11, 2013. It provides an overview of REIL, including that it is a public sector company established in 1981 that manufactures electronic products for the dairy and renewable energy industries, such as electronic milk testers and solar photovoltaic modules and systems. It also describes the manufacturing processes for solar PV modules and some of REIL's other products and their applications.

1. INDUSTRIAL TRAINING SEMINAR
TAKEN AT
RAJASTHAN ELECTRONICS AND INSTRUMENTS LTD.
KANAKPURA, JAIPUR.
Submitted to: Submitted by:
Mr.R.C.Jain Ajay Meena
Training Coordinator B.Tech ECE
REIL Jaipur. NIT Hamirpur.
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2. 2
Contents
• Training Overview
• Introduction
• Organization profile
• Agro electronics division
• Principle of EMT
• Technical Specifications
• Working Principle
• SPV production division
• Flow Chart for Solar panel
• Technical Specifications
• Other products
• Key learnings
• Conclusion

3. Training Overview
 Industry Rajasthan Electronics &
Instrumentation Ltd,
Jaipur
 Duration 10 June 2013 to 11July
2013
 P&IR Head Mr. Neeraj Saxena
 Training
Coordinator Mr. B. S. Chauhan
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4. REIL is Rajasthan Electronics & Instruments Ltd. It is a public
sector unit and it has a prominent place amongst the
electronics industry of Rajasthan. It was established in 1981.
It is situated at the Kanakpura industrial area about 12 Km
from Jaipur city. REIL has joint venture between the
Government of India & the Government of Rajasthan,
through their respective institutions. Government of India
and Government of Rajasthan holds51% and 49 % share in
this company respectively.
4
Introduction

5. Rajasthan Electronics & Instruments Limited (REIL), as a
commercial organization has been in operation for the past
27 years with a proven track record of profitable
performance, professional management and service to the
rural masses through electronic products for the dairy/Milk
cooperatives and renewable energy sectors. REIL commenced
its foray in the Dairy sector with the manufacture of
Electronic Milk Testers under the technology developed
overseas by Foss, Denmark. The company entered the area of
Renewable Energy through Solar Photo Voltaic (SPV)
technology, in the year 1985. the company started its
operations with manufacture of SPVPREFACE
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ORGANIZATION PROFILE

6. Profile Sheet of REIL
S. No. Particulars 2007 – 2008 2008 - 2009 2009 - 2010
1 Turnover & other Income 8150.84 8711.11 9913.32
2 Net Profit before Tax 405.71 148.52 199.68
3 Profit after Tax 268.22 110.87 182.64
4 Dividend (including Tax) 65.00 42.50 85.00
1
5 Fixed Assets
5.a Gross Block 1899.81 2035.21 1929.97
5.b Less depreciation 655.61 742.45 792.34
5.c Net Block 1244.20 1292.76 1137.63
6 Current Assets 4768.62 5345.70 6202.68
6.a Total Assets 6012.82 6638.46 7340.31
6.b Less Current Liabilities & Provision 2792.11 3088.23 4270.64
7 Capital employed : represented by - 3220.71 3550.23 3069.67
7.a Share capital 325.00 527.00 527.00

7. Why Solar Energy?
 It is Free.
 It is Clean.
 It is Infinitely renewable.
 It can reduce our utility cost.
 It increases our energy self reliance.
 It is extremely reliable.
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8. Solar Photo Voltaic (SPV)
Modules
 Connected assembly of solar cells.
 Output of 0.5 - 0.6 volt DC.
 Output Current depends on Area
of the cell and the amount of Light
falling.
 So efficiency is determined by the
area of a module.
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9. How PV Cells Work?
 Composed of ultra-thin layer of N type silicon on top of a thicker
layer of P type silicon.
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10. Block Diagram

11. Manufacturing Process of
SPV Modules
 Processes during manufacturing of SPV modules :-
Part I Part II
1. Tabbing of Cells 1. Lamination
2. Row Making 2. Curing
3. Stringing 3. Trimming
4. Lay up 4. Testing
5. Terminal Box Fitting & Soldering
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12. Manufacturing Process
1. Tabbing of Cells
 Process of making terminals of a bare cell by soldering
copper strips to the bus bar.
12

13. Manufacturing Process
2. Row Making
 A row of cells is made by connecting positive surfaces of
one cell to the negative surface of another cell.
13

14. Manufacturing Process
3. Stringing
 The rows of SPV cells are connected in series to get
desired power rating.
14

15. Manufacturing Process
4. Lay-up
 In this process,
solar cells are
put in between
various layers
for lamination
and curing
process.
15

16. TABBING OF
CELLS
COMPONENTS
STORE
STRINGING
LAMINATION
CURING
STRING
INSPECTION
AND
REPAIRING
OK
LAY UP
TRIMMING
CHANNELLING
REGRADE
TERMINAL BOX FITTING
AND SOLDERING
GOODS
STORE
VISUAL & ELECT.
INSPECTION
FINAL
INSPECTION
OK
OK
NOT OK
FLOW CHART

17.  Advantages
 Can be designed for variety of applications and
operational requirements.
 Have no moving parts.
 Expandable.
 Transportable.
 The fuel (sunlight) is free.
 No noise pollution or any othe type of pollution.
 Requires minimum maintenance.
 Have long service lifetimes (upto 20 years).
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18.  Disadvantages
 High Cost.
 Large Surface Area.
 Doesn’t work at night.
 Not reliable unless kept in a very sunny climate.
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AGRO Electronics DIVISION
Electronic Milk Tester

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Principle :-
EMT is a simple, economical but accurate milk fat testing instrument.
It measures the fat content instantaneously on a digital read out. It does not
involve the use of corrosive chemicals.Electron milk tester is based on the
photometric measurement of light scattered by the milk sample. The light
is scattered by the fat globules, acting as small prism.
Features: -
1. Auto zero facility
2. Easy to read digital LED display
3. Runs on mains or batteries
4. Measures up to 13% fat
5. Accepts small sample volume
6. Performs 120-150 test per hour
7. Automatic switch over to battery in case of power failure
8. Cheapest method of milk testing .

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• MILK IN
Working Operations
Gently mix milk sample
Place sample under milk intake
Push milk in button
• MIX OUT
Empty mix beaker
iPnlatackee mix beaker under milk
Push mix out button
• PUMP
Move mix beaker to mix intake
Raise and lower handle 3 times
• READ
Read % fat in display and record

22. 1
OTHER PRODUCTS OF REIL
• VEHICLE TRACKING SYSTEM (VTS)
• SPOT BILLING TICKET MACHINE
• SPV RAILWAY SIGNALING SYSTEM

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Applications:-
•Street lighting
•Water pumping
•Battery charging
•Railway signaling and lighting systems
•Rural radio phones and exchanges
•Portable lantern
•Power pack for village electrification
•Satellite communication
•Grid connection system
•Space energy source

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 Electric power generation in space
Water pumping

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Telecommunication systems
Health care:

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Grid-connection systems

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CONCLUSION
• The summer training in REIL played an important role to
develop myself. It was a golden opportunity for me to get the
practical knowledge and hands-on experience from the things
about which I had theoretical knowledge from the course
curriculum.
• As the organization follows the ISO 9001 standards, everything
is done in a particular way following the documents. In addition
I gained knowledge about the working principle of solar cells
and the various applications in which they are used.

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REFERENCES
• www.reiljp.com
• www.wikipidia.com
• http://en.wikipedia.org/wiki/Mobile_radio_telep
hone
• Material from Organization

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