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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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