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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PARALLEL A.C CIRCUITS:- Notes

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                 PARALLEL A.C CIRCUITS 

#INTRODUCTION:-

• A parallel circuits of two or more series circuit connected in parallel across the same supply as illustrated in figure. a.

• All these series circuits are called the branches of a parallel circuits.

• Depending upon the way in which R,L and c are connected, we have a veriety of a.c parallel circuits.

figure. a.

• In this notes, we are going to study the analysis of such circuits.


#SOLUTION OF PARALLEL CIRCUITS:

• parallel a.c circuits can be solved by the following two basic methods:
1. Phasor method, 2. Admittance method.
• Let us study these methods in the following sections.

# PHASOR METHODS AND ITS APPLICATION TO PARALLEL CIRCUITS:

• in this case

ase each branch of the circuit is analysed separately aise circuit using phasor diagram in the same manner in which we have analysed circuit in the previous sections and then the effects of separate branches are combined.                                  • For example, if the total current drawn by the particular parallel circuits to be calculated flowing procedure is adopted:                             

  1. The currents in the individual branches and their base angles and determined using the following expressions separately for each branch:  I= V/Z and tan phi = X/R
  2. Then, the phasor diagram is drawn, taking the voltage as a reference phasor. In this case voltage is chosen as a reference quantity because it is common to all the branches of the circuit.
  3. Finally using this phasor diagram the total current is calculated by phasor addition of all current is the produce is best isolated by numerical example.
     QUESTION FOR YOU:

A circuit consists of three branches branch a has resistance of 10 ohm branch b has resistance of 6 ohm in series with inductive resistance of 8 home and branch c has a resistance of 4 ohm in series with a capacitive resistance of 9 Ohms dahu circuit is connected across a 230V, 50HZ supply. Find:

  1. Current in each branch.
  2. Power factor of each branch.
  3. Total current taken and power factor of the whole circuit.
  4. Total power consumed by the circuit.
  5. Equivalent impedance of the circuit.

Solve this problem :-

Solution is, 


 


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