Syllabus for 30% LDCE for promotion to Group 'B' post of AEE in Electrical
Department.
A. Professional Subjects :
Part I: General Electrical Engg.
1. Electrical Circuits: Electrical Circuit Elements (Resistance, Inductance and
capacitance), Voltage and Current Sources, Ohm's law, Kirchoff's Voltage and Current
Laws, DC & AC circuit analysis, Magnetic circuits and analysis, Poly phase circuit
analysis.
2. Electronic Devices & Analog Electronics: Energy Band Theory of Solids, Intrinsic and
Extrinsic Semiconductors Doping, Doping Materials, Carrier Mobility, Conductivity,
Semiconductor Diodes, Diode Rectifiers, Bipolar Junction Transistor, JFET, MOSFET,
Transistor Biasing Circuits. CE, CB and CC modes of transistor. Using transistors as
amplifiers and switches. Characteristics of an Operational Amplifier - Applications of
Op-Amp as an Inverting and Non-Inverting Amplifier, Integrator, Differentiator, Summing
and Subtracting Amplifier and Logarithmic Amplifier. Differential Amplifier - Calculation
of common mode rejection ratio, Active & Passive Filters.
3. Digital Electronics: Number Systems, Basic Logic Gates & Boolean Algebra, Digital
Logic Gate Characteristics, Minimization Techniques, Combinational Logic Circuits, Flip
flops and Sequential Circuits.
4.Power Electronics: Power Semiconductor Devices (Diodes, BJT, MOSFET, SCR,
GTO and IGBT) and their characteristics, selection of devices for different power
electronics applications, Working of single phase and three phase rectifiers, H-bridge
inverter, Three phase voltage source inverter, PWM converters, Harmonic analysis and
power factor improvement, AC machine control, VVVF drives.
5. Electrical Engg. Materials: Properties & applications of Electrical insulating materials,
Magnetic materials, Conducting materials & Semiconducting materials.
6. Electrical Machines: DC Machines, Induction Machines and Synchronous Machines.
Losses in rotating machines. Single phase and three phase transformers. Losses and
efficiency of transformers, Machine Drives.
7. Renewable Energy Sources: Climate change, Global warming, Various sources of
Renewable energy- Resources and applications, Solar Cells, Rooftop solar and land
based solar plants- Concepts of Basic Design, construction and maintenance, Off grid
and Grid connected solar plants, Wind turbines, Net Zero carbon emission, ECBC,
Round the clock green energy, Energy Storage systems, Policies and regulations, Net
and Gross metering, Business model, tendering.
8. Power System and Protection: Basic concepts of electrical power generation and
various equipment. Concepts of transmission lines, Models and performance of
transmission lines and cables, Series and shunt compensation, Electric field distribution
and insulators, Distribution systems, Per-unit quantities, Bus admittance matrix, Load
flow methods, Power factor correction, Symmetrical components, Symmetrical and
Asymmetrical fault analysis, Principles of various protection system,
Circuit breakers, Latest research in the field of power system.
Part II: Railways Electrical Engg
1. General Services:
a.
b.
C.
Power Supply arrangement: Radial distribution system, Looped(Ring Main
distribution systems. Layout & Equipment at Distribution sub-station. Operation &
Maintenance of sub-station, Various testing at sub-station, overhead &
underground distribution, protective devices & their coordination. Construction,
erection & commissioning of new sub-station and distribution lines. Basic
features of PVC and XLPE cables. Cable rating and derating, Cable laying.
Concept of average demand, peak demand, load factor & electrical billing. Power
factor improvement, Electrical & fire safety, Safety auditing of sub-station,
concept of energy audit, Functions of Electrical Inspector to Government (EIG) in
Railways. Power line crossing, Electricity Act-2003, CEA Regulations, SCADA
and Substation automation. Earthing arrangement.
Building Electrification: Types of various wiring methods, metering & safety
measures. Wire, switchgears & fittings used for wiring, Energy efficient
appliances, scale of fittings as per policy in various types of quarters, various
types of Tariffs, commercial connection, concept of prepaid and postpaid
metering, concept of smart meters. Safety coordination, Electrical accidents and
prevention.
Illumination & Lighting: Various parameters related to illumination, Different types
of illumination sources, lighting methods, classification of lux levels at various
types of stations, yard lighting & street lighting. Passenger amenities at Railway
stations.
d. Water supply: Types of water supply system, Pumping system, Classification of
pumps, Comparison of various pumps, fluid theory, discharge calculations.
Centrifugal pump, turbine pump, Submersible pumps, characteristic curve of
pumps, efficiency. Cavitations & priming of pumps, necessity of multistage
pumping, storage capacity and purification of water. Installation, maintenance &
troubleshooting of pumps, Starter & drives of pumps, automation of pumps.
e. Lift & Escalator: Working of Lift & Escalator, Installation of Lift and Escalator.
Maintenance, various safety devices, control panels & Safety aspects.
f. Air Conditioning & Refrigeration: Theory of air conditioning, refrigeration cycles,
Various types of refrigerants, window/split/package AC unit. Central air
conditioning plant, VRF system, air cooling systems, planning for capacity and
drives for refrigeration plant, Maintenance and troubleshooting. g. Energy Conservation: Need of conservation of energy, Various measures being
taken by railways to conserve energy in the field of Electrical General Services.
Necessity and implementation of Open Access in Indian Railways. Energy
conservation Act.
2. Traction distribution:
a.
b.
OHE: Basic design concepts of TRD system of conventional and 2x25kV system.
Types of overhead equipment. Sectioning principles of OHE. Various parts of
OHE. Foot Patrolling, current collection, Tower wagons, seasonal & cyclic
checks, maintenance Schedule, Preventive maintenance Tools, failure
investigation of OHE, earthing and bonding. Railway Electrification and process
of construction. Power Blocks & Procedure to obtain it.
PSI: Schematics of 1x25kV and 2x25kV traction substation with names/ratings of
various equipment, protection scheme for TSS. Fixed and dynamic PF
correction, Feeding stations, SSP & SPs, 132 kV transmission lines, PSI
equipment. Maintenance and failure investigation of PSI equipment.
c. SCADA and Miscellaneous items: Operation and maintenance of remote control,
traction power control organization, permit to work, emergency arrangements,
coordination with operating and other departments. Liaison with supply
authorities, maintenance and failure investigation of SCADA equipment.
d. NDT techniques, Open Access, safety precautions for electrified sections, Latest
development in TRD, MSG meetings. Instructions issued by Railway Board,
RDSO's TI/MI, TCs, IRSOD & ACTM.
3. Train Lighting and AC Coaches: Systems of Train Lighting and Air conditioning on
coaches, Self Generating Coaches, ICF TL/AC Coach Generation system. Circuits and
protection in ICF TL/AC coaches, Emergency feed extension in coaches. Air
Conditioning in coaches, Heat Load Calculation, Precooling and Pulldown Tests.
Dynodrive test. 25 kVA coach inverter, Water raising apparatus. EOG and HOG
systems in coaches- Hotel Load converter and Interlocking panel. Power and control
circuits and protection systems in LHB TL/AC coaches, Power car, Pantry car, AC
Double Decker, AC 3Tier Economy and LSLRD coach. HVAC Microcontroller and
Electronic equipment in LHB coaches. LHB pantry car and its equipment. Push pull
train operation. Maintenance schedules of ICF and LHB coaches, Pantry cars and
Power cars. Manufacturing, POH and IOH activities of coaches. Commissioning tests
and Special Repair. Circuits, working and maintenance of Passenger amenities items in
ICF/LHB coaches. Coaching depot working, Primary & Secondary maintenance, Sick
line attention, Pit occupation chart, Rake links and Coach requirement, Staff yardsticks
and benchmarking. Duties of ACСM/AСCA. Pre-cooling of AC Coaches. Features of
ICMS. Unit exchange spares. Fire causes and prevention measures in coaches. SMIs,
Modification Sheets and Technical circulars issued by RDSO and instructions by
Railway Board and RDSO. Reliability Action plan, recent developments in coach 4. Electric Locos: Organizational structure and duties of officers & staff. Conventional
AC & 3 phase locomotives on IR. Equipment in locomotives, their functioning /
operations, maintenance / overhauling and testing parameters & maintenance
schedules. Reliability & safety action plans. Traction Power Circuit, Auxiliary Circuit,
Control Circuits and Pneumatic Circuits. Different types of braking arrangements.
Locomotive maintenance schedules & various tests to be carried out. Working of
Electric Loco Shed & Electric Loco Workshop. Safety items and safety checks involved
in safe locomotive operation. Relevant paras of ACTM, Accident Manual, G&SR, IR
SOD and Instructions issued by Railway Board, RDSO and CLW. Latest developments
in the field of electric locomotives.
5. EMU and MEMU/Metros: Concept of EMU/MEMU/Metro trains, various types of
EMU/MEMU stock, Conventional & 3 phase EMUs & their salient features. Different
types of brakes used in EMU/MEMU/Metros. Power circuits, auxiliary, control circuits.
Mechanical components and its functions. Different electrical equipment and its
functions. Inspection/Maintenance/Overhauling schedules of EMUs/MEMU/Metros.
Safety precautions and fire prevention in EMU/MEMU/Metros. Train Control
Management System(TCMS). Recent developments in EMU/MEMU/Metros.
6. Electric Loco and EMU Operation: Organizational structure and duties of officers &
staff. Crew management - Training, Monitoring & Counseling. Crew & loco links.
HOER Rules. Loco utilization. SPAD (Signal Passing At Danger). Management of Crew
lobby, running room, trips shed & TLC / Power controller office. Working of CMS &
FOIS. Safe, punctual & efficient loco / EMU operation with online troubleshooting of
locomotive / EMU failures. Relevant paras of ACTM, Accident Manual, G&SR and
Instructions issued by Railway Board & RDSO. Latest developments in the field of
electric locomotives / EMU operations.
7. Store Matters: Procedure related to procurement of stock items and non-stock items,
distribution and accountal of stores. Receipt and custody of stores. Sale of surplus
stores. Inventory management, ABC Analysis. Procurement through GeM, IREPS.
Schedule of powers under stores matters.
8. Tenders and Contracts: Work proposals, Types of estimates & estimation stages,
procedure of survey, Type of tenders, earnest money, Performance guarantee, security
deposit, technical & financial eligibility criteria, Merits and demerits of
EPC tender. IRPMS. Procedure and stages of e-tendering through IREPS, General
Condition of Contract (GCC) for works and service contracts, various provisions in
Schedule of Power (SOP) under works matters, Basic principles of Project
management, quality control in electrical works.