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Showing posts with the label attraction type moving iron instrument

LOCO SHED GOMOH

ACKNOWLEDGEMENT I would like to express my sincere grateful and profound gratitude to LOCO SHED ,GOMOH for providing an opportunity to undergo Vocational Training of 04 weeks in “ELECTRIC LOCO SHED, Gomoh, Jharkhand’’. I bear immense pleasure in expressing my gratitude and thanks to all the Employees of respective shops for their honest teaching, practical demonstration, guidance and suggestion in respective sections. Furthermore, I would like to acknowledge with much appreciation the crucial role of staffs, who gave us the permission to use all required equipment and the necessary materials during our training period. CONTENTS 1. Introduction 2. Locomotives 3. Syntaxs used in Loco 4. Components of Loco 5. Different Sections of Loco 6. Brake Rigging 7. Pantograph 8. Traction Converter 9. Working of Loco 10. Conclusion INTRODUCTION  The ISO-9001-2008 certified Electric Loco Shed, East Central Railway, Gomoh situated in Gomoh. ELECT...

Moving iron instrument

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                   Moving iron instrument    • Most common form of ammeters or voltmeters for use in laboratory etc. Are moving iron type. They can be manufactured at cheaper cost and the required accuracy can be obtained. • There are two types of moving iron instruments. (1.) Attraction type (2.) Repulsion type (1.) Attraction type:  It consists of a fixed coil C of insulated copper wound on the bobbin and an iron disc D. The current to be measured ( or a current proportional to the voltage to be measured ) is passed through a coil of wire , the number of ampere turns are required for the operation of the instrument and this number can be made - up by having few turns and large current or vice versa depending upon whether it is a ammeter or voltmeter . In this form of instrument , a small piece of iron is drawn into the core of the coil when the current flows. Figure. (A) Whatever be the direction of the curre...