LOCO SHED GOMOH

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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...
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Electronic filters

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•>Electronic Filters:- electronic filters remove unwanted frequency components from applied signal, enhance wanted one or both.
•>need of filter in circuit:-                                 * Output obtained by rectifier is pulsating D.c.
 * A.c components present in output voltage is called as Ripple.
 * Output should be ripple free (pure D.C)
 * For removal of ripple, filter is used
°::::::::::::::::l---------------------l
                 I                       l-------------------------------- I/p A.c      l Rectifier.      I rectified (d.c+A.c)
                 I  (h.w.r/f.w.r) l--------------------------------
°::::::::::::::::l---------------------l
                                               Remove (A.c) 
               ________________/
               I filter circuit.     I ------------------------------
               ________________ pure D.c o/p.          I
                                             ------------------------------
                                                                          ¥.                                                                         RL^
                                                                           ¥
               Rectified      to      Pure D.c 
• Required for made up of filter:- 
Resistance:- It is measure of opposition to current flow in electric circuit. Unit is (abbreviated Ω),.                            Reactance :-  current flow indictor to the flow( Indector offered as a resistance) current.                                                       
1.) Indictor:-        ----------------------------------------
                            I                XL= 2πfl                 l
                              ------------------------------------------
XL-> inductive resistance
F  -> frequency of signal
L -> inductance
        *D.c signal frequency is almost '0'
              _________________________________
              I  (D.c)F=0.                                        I 
              I            XL=2π(0)L= XL=0----->(D.c)--> easily pass.                                                     I
                 ________________________________
 F(A.c) Ripple =(^)high ,
                      I______________________________l
                      I XL= 2π(^)L = XL=(^)----> stopedl
                      I-------------------------------------------------l
2.)capacitor:-   XC= 1/2πfc
     D.c(f=0)=XC×1/0=XC= (affinity)--> filter stoped in capacitor in D.c
     A.c(f=^)= XC× 1/affinity or ^= XC=0--> easily pass ripple.                                              * Capacitor should be connected in parallel with load.            
                               
                       Thank you.                           Written by                                                     Abhishek Singh.(E.E)
                                                 

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