A Seminar on Industrial Training DONE AT INSTRUMENTATION LIMITED KOTA (RAJ.) SESSION : Submitted T0:- Submitted BY:- Mrs Madhuri Sahal Arun Patidar Mr Gaurav Soni EC/09/94 ELECTRONICS & COMMUNICATION ENGG. OF ENGINEERING POORNIMA COLLEGE OF ENGINEERING, JAIPUR(RAJ.) 11

CONTENTS  INSTRUMENTATION LIMITED  IL SECTIONS  VISITED SECTIONS  UPS  RAILWAY RELAY  PCB CENTRE 22

STAGE 1 33

It is a Central Govt. of India enterprise set up in 1964 IL makes process control instruments Corporate office at Kota (Rajasthan) ISO 9000 CERTIFIED Production range in thermal power unit is MW International office in Malaysia, Iran. International office in Malaysia, Iran. TURN OVER:- 250 crore  INSTRUMENTATION LTD 44

OFFICER’S DETAIL  Mr PM Bhardwaj Director (Production) and Chairman-cum-Managing Director Instrumentation Limited, Kota  Mr S.K. Gupta Director (Finance) Instrumentation Limited, Kota  Mr Harphool Singh Director (Commercial) Instrumentation Limited, Kota  Mr Suresh Khatri Head of Traning Department, Instrumentation Limited, Kota 55

The Vision / Mission of the Company is to make the nation self sufficeient in the field of Process Control Industry 66

STAGE 2 77

UPS Division PCB Centre Railway Signaling Relay Telecom Technology Defence Project  Section Divided 88

The sections visited during my training period are  UPS Centre  Railways Signaling Relay department  Card Assembly (PCB centre) 99

UNINTERRUPTIBLE POWER SUPPLY(UPS)  10

 Instrumentation Ltd is manufacturing UPS systems for the last 15 years.  UPS provides continuous power supply during failure of normal power supply.  High efficiency, conserves energy. UNINTERRUPTIBLE POWER SUPPLY(UPS)  11

 Low noise, compact in size and light in weight.  Available in wide range from 10kva to 200 kva, single phase.  High reliability and excellent performance due to use of power transistors  12

Why UPS is Needed ?   Voltage Fluctuation   Power failure  13

Mains input inverter LOAD Rectifier  Basic Block diagram of UPS  14

TWO TYPES:-  OFF Line System  ON Line System  UPS Classification  15

input Rectifier inverter load Normally ON NormallyOFF  Block Diagram of Off Line UPS  16

 Input is directly connected to the output  Inverter is not used all the time  Output will be in square wave form  Work on less than 1.5KV  Off Line UPS  17

input Rectifierinverter load Normally OFF NormallyON  Block Diagram of On Line UPS  18

 In this UPS input is connected to load through Inverter  Output is in sine wave.  Constant voltage & frequency is maintained.  On Line UPS  19

 IN PC  IN POWER PLANT  IN REFINERY OR INDUSTRIES  IN CONTROL ROOM SUPPLY  IN MEDICAL SCIENCE  Critical Application  20

RAILWAY SIGNALING SYSTEM  Railway Signaling Systems are basically intended or dispatch and control of trains in the fail safe manner.  IL has executed large turnkey Railway signaling jobs for Western Railway, Southern Central Railway, RITES, IRCON and NTPC etc.  21

 What is relay?  A relay is multi switch device with multiple mating contact pairs.  The contact configuration consists of two types of contact pairs- front and back.  When a relay is energized the status of front and back contact pairs reverses.  22

CONT….  IL manufactures three types of relays:  LINE RELAY  TRACK RELAY  KEYLOCK RELAY  23

PCB CENTRE  A printed circuit board, or PCB is used to mechanically support and electrically connect electronic components using conductive pathways.  IL deals with the fabrication of the PCB’s.  24

 PCB manufacturing process generally consists following steps:  Materials  Patterning  Chemical Etching  Lamination  Drilling  Conductor plating or coating  Solder resist  Screen printing  Testing & Assembly  Protection & Packaging  25

 QA of PCB:  Pre Solder Inspection- o Card should not have defective components. o No component should be missing on card.  Post Solder Inspection- o Card should not have any lifted component. o No shorting and solder defect should be there.  26

 After the PCB’s are made,they are given an identification number of ten digits as:- XX XX X X XXXX XX XX X X XXXX  First two digits show manufacturer’s code  Next two digits show the year in which PCB was made like 07,08,09 etc……..  Next single digit for month as 1 to 9 till September and then A,B,C for oct.,nov.,& dec.  Next single digit for manufacturer’s unit  Then 4 digit serial number  Thus total 9999 PCB’s can be identified by this code in particular year & month  27

CONCLUSION HENCE, in last I can say that taking training in such an organization provided to very beneficial for me. I learn a lot about UPS unit, PCB unit etc. I also got first hand knowledge of how an industry practically works. These all are necessary to know for an Engineering Graduate. I hope this presentation will be successful to make others understand about the various technology and process used to prepare various equipments.  28

I. MANUAL PROVIDED BY I.L. II. I.L. website  29

QUERIES  30

 31