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BHANWAR LALELECTRONICS AND COMMUNICATIONFOURTH YEAR (B.E.)
2012-2013
MAHARANA PRATAP UNIVERSITY OF AGRICULTURE & TECHNOLOGY
COLLEGE OF TECHNOLOGY AND ENGINEERING, UDAIPUR
DEPARTMENT OF
ELECTRONICS AND COMMUNICATION ENGINEERING
A INDUSTRIAL TRAINING REPORTTAKEN AT: MODERN INSULATOR LTD. ( SIROHI)
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CONTENT Company over view
Definition
Types of insulator produced Process of manufacturing
Central control room
Instrumentation
Types and working
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Modern insulator group
Last year gross income 100cr.
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TOP EXPORT AWARD 2004-05
TOP EXPORT AWARD 2005-06
TOP EXPORT AWARD 2006-07 TOP EXPORT AWARD 2007-08
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An electrical insulator is a material whose internalelectric charges do not flow freely, and which thereforedoes not conduct an electric current , under theinfluence of an electric field . A perfect insulator doesnot exist, but some materials such as glass, paper andTeflon , which have high resistivity, are very goodelectrical insulators
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1. Hollow insulator
2. Solid core post insulator
3. Longrod insulator
4. Railway insulator
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i. Storage
ii. Slip House
iii. Jiggering Unitiv. Finishing Unit
v. Glazing Unit
vi. Firing Unitvii. Assembly Unit
viii. Testing Unit
ix. Dispatch Unit
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1.CHEMICAL LABIn this lab chemist checks the chemical composition of insulatorin every hour by using chemical reactions.
A. The lab has standard specimen of insulator , coal, lime stoneand other useful raw and manufactured insulator .
B. These specimen are used to compare the manufactured raw.
2.ONLINE LAB.It uses three types of analyzer.
A. X-RAY MACHINE.B. COMPUTER APPLICATION.
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In this lab damaged devices and faulted circuitsare repaired.
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In this room the engineer monitors the processand devices.
For monitoring they uses four cctv camera andeight computer.
These computers are connected with DCS.
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Quality checking
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Speed
Level
Pressure
Weight
Temperature
Vibration
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(1) RTD (2)THERMOCOUPLE
(4) SHELLSCANNER
Temperature Measurement
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RTDs are manufactured from metals whose resistanceincreases with temperature:
RT = RO[1+a(t-to)]
Where,
Rt = Resistance at temperature t
Ro= Resistance at standard temperature t = temperature coefficient
A thermocouple circuit is formed when twodissimilar metals are joined at both ends.Thomas Seebeck
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The KILNSCAN infraredline scanner is used forrotary kiln shell
temperature monitoring.This system enables toprevent risks of hot spotformation on the shell, to
early detect refractory brickfall, to determine coatingthickness and to evaluatethe kiln thermal warpamplitude
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Pressure transmitter
Differential pressure transmitter
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It is used to measure thedifference between twopressure.
Also used to measure thesimple pressure.
Analog o/p: 4-20mA
Capacitive type
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Vibration sensor
Vibration sensor system
AC signal fromsensor
AMPLIFIERDC O/P OF 0-10vlt OR 4-20mA
ALARM
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Default alarm value limits of4,5 mm/s- Stainless steel sensor
- Analog output 4 ... 20 mA- With digital display- Measurement range: 0 ...25,4 mm/s
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Weigh feeder
Load cell
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Levelmeasurement
NLG
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SPEED MEASUREMENT
Tacho-generator Tachometer
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Tacho-generatortachometer is connected to the machinewhose speed is to be measured. Whenarmature revolves in the field ofpermanent magnet emf proportional tothe speed is generated. This can bemeasured directly or after suitable
conversions to find the speed of themachine.
Tacho-meter
Its a digital form of tacho-generator. It gives reading in digitand also measure the speed.
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HPM (High Performance Manager)
It uses powerful multiprocessor dedicated to perform
specific tasks. It consists of HPMM & I/0 sub-system. Redundant HPMM card files.
HPMM consists of communication processor and modem,I/0 link interface processor and control processor.
Filed termination assembly.
The I/0 sub-system consists of redundant I/0 link and theI/0 processor. These I/0 processors handle all fields I/0 forboth data acquisition and control functions.
Power system.
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