Mine Electrical Technology

Teacher

Swakantik Mishra

Category

Core Courses

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Core Course : Mine Electrical Technology

Code(Credit) : CUTM 1911(2-1-0)

Course Objectives

  • To give students functional knowledge about electrical equipments, machines used in mining sector.

Learning Outcomes

  1. Students will have thorough knowledge about electrcal technology in mining sector.
  2. Students will know the construction, oeration & maintenance of electrical devices, machines, etc.

Course Syllabus:

Module I: Concepts of circuit elements:                                 (6 Hours)

Basics of Electrical Safety, AC Source, DC Source, Electrical Parameters, Active and passive elements; resistance, inductance, capacitance; mutual inductance and coupling.Single Phase Supply, Three Phase Supply, Network theorems (KCL, KVL). Mesh and nodal analysis of DC circuits.

Practice: Single & Three Phase Wiring.

Practice: Network Analysis to Determine Voltage, Current & Power.

Module II: DC Machines       (10 Hours)

Construction and types, e.m.f and torque equation. DC generator – operation, e.m.f. equation, OCC, losses and efficiency, applications.
DC motor: operation, torque equation, starting, losses and efficiency, applications.

Practice: Speed Control of DC Motor

Practice: OCC of DC Motor.

Module III: AC Circuits                                   (7 Hours)

Single-phase AC circuits and concept of phasor diagram, series and parallel
circuit. Three-phase AC circuits with balanced and unbalance loads.

Practice: series and parallel circuit

Practice: Measurement of three-phase power by two-wattmeter method.

Module IV: Electrical Transformer                  (5 Hours)

construction, types, e.m.f equation, equivalent circuit diagram, losses, efficiency, operation, applications.

Practice: Identification of Part of Transformer.

Practice: IR Test of Transformer.

Module V: Single Phase Induction Machines (5 Hours)

Single-phase induction motor: construction, types, operation, torque equation, torque-slip characteristics, starting methods, applications.

Practice: Speed-Torque Characteristics of IM

Module VI:  Three Phase Induction Machines                      (5 Hours)

Three-phase induction motor: construction, types, operation, torque equation, torque-slip characteristics, starting methods, applications.

Module VII: Electrical Substation                                                                                        (8 Hours)

Introduction, electrical fault,  Circuit Breaker, Classification of Circuit Breakers, Isolator, relay, earthing system, fuse, conductror, cables.

Practice: Measurement of Earth Resistance.

Session Plan

Session 1

Basics of Electrical Safety, Electrical Sources & Parameter, Active and passive elements; resistance, inductance, capacitance

ohms law: https://www.youtube.com/watch?v=NfcgA1axPLo

Session 2

mutual inductance and coupling.

Practice: Single & Three Phase Wiring

Inductor: https://www.youtube.com/watch?v=ukBFPrXiKWA

Session 3

Network theorems (KCL, KVL)

Practice: Network Analysis to Determine Voltage, Current & Power.

Applications: https://www.youtube.com/watch?v=tWsyp1RTYtc

Session 4

Network theorems: Mesh and nodal analysis of DC circuits.

Applications: https://www.youtube.com/watch?v=f-sbANgw4fo

Session 5

DC Machines:

Construction and types, e.m.f and torque equation

Practice: Speed Control of DC Motor

Applications: https://www.youtube.com/watch?v=_Jy4wchNZh0

Session 6

DC Machines:

DC generator – operation, e.m.f. equation, OCC, losses and efficiency, applications.

Practice: OCC of DC Motor.

Applications: https://www.youtube.com/watch?v=_Jy4wchNZh0

Session 7

DC Machines:

DC motor: operation, torque equation, starting, losses and efficiency, applications.

Applications: https://www.youtube.com/watch?v=_Jy4wchNZh0

Session 8

Single-phase AC circuits and concept of phasor diagram, series and parallel
circuit.

Applications: https://www.youtube.com/watch?v=f-sbANgw4fo

Session 9

Three-phase AC circuits with balanced and unbalance loads.
Practice: Measurement of three-phase power by two-wattmeter method.

Applications: https://www.youtube.com/watch?v=f-sbANgw4fo

Session 10

Electrical Transformer:

losses, efficiency, operation, applications.

Applications: https://www.youtube.com/watch?v=BqetOHEhAGE

Session 11

Electrical Transformer:

losses, efficiency, operation, applications.

Applications: https://www.youtube.com/watch?v=BqetOHEhAGE

Session 12

Practice: Identification of Part of Transformer.

Session 13

Practice: IR Test of Transformer.

Session 14

Single Phase IM Parts, Induction Machine Operations

Practice: Speed-Torque Characteristics of IM

Session 15

Induction Machines  :

Three-phase induction motor: construction, types, operation

Applications: https://www.youtube.com/watch?v=_Jy4wchNZh0

Session 16

Induction Machines  :

torque equation, torque-slip characteristics, starting methods, applications.

Applications: https://www.youtube.com/watch?v=_Jy4wchNZh0

Session 17

 Electrical Substation  :

Introduction, electrical fault,  Circuit Breaker, Classification of Circuit Breakers

Session 18

 Electrical Substation  :

Isolator, relay, earthing system, fuse, conductror, cables.

Session 19

 Electrical Substation  :

 Application: Circuit Breaker Operation

Session 20

 Electrical Substation  :

 measurement of earth resistance

Session 21

 Electrical Substation  :

Isolator, relay, earthing system, fuse, conductror, cables.

Session 22

 Electrical Substation  :

 Application: Circuit Breaker Operation

Session 23

Electrical Grid System 

Session 24

Bus bar configuration

Session 25

Motor-Generator Set

Session 26

Earth Switch, Isolator & CB Operation

Session 27

DC supply System

Session 28 Case Studies:

Causes of Transformer Failure

Session 29 Case Studies:

Substation Earthing Measurement

Session 30

Revision

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    Swakantik Mishra is serving as a faculty in Electrical & Electronics Department, He is having 10+ years of experences in Power/Energy Industry & Education sector. He holds a master’s & bachelor’s degree in electrical engineering, He is also a management graduate in Operations & HR area.