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TSSPDCL Sub Engineer Free Mock Test
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TSSPDCL Sub Engineer Syllabus 2026, Exam Pattern
TSSPDCL Sub Engineer Syllabus 2026, Exam Pattern, Exam Date 2026
Detail Information about TSSPDCL has published notification 2026 for the recruitment of Sub Engineer vacancies. Those Candidates who are Interested to the following vacancy and completed all Eligibility Criteria can read the Notification & Apply Online. In this page we provide the Complete Syllabus of this Recruitment with Latest Update Exam Pattern and the Exam Date also.
TSSPDCL Sub Engineer Syllabus 2026 - Overview
Technical Subject (Electrical) :
UNIT 1: Basic Electrical Engineering
1. Ohms law and Kirchhoff’s laws, Star/Delta transformation, Network theorems, Power and Energy, Heating effects of electric current, Magnetic effects, Electromagnetic induction, Electrostatics. Batteries, Types of Electrical engineering materials – Conducting, Semi-conducting, Magnetic, Insulating, Di-electric materials – Properties and Uses.
UNIT II: D.C. Machines & Measurements
1. D.C.Generators: Construction, Operation, Types, EMF Equation, Windings, Characteristics, Efficiency and Parallel operation. DC Motors: Principle of operation, Back EMF, Torque Equation, Types, Characteristics, Starters, Speed Control, Losses, Efficiency and Testing.
2. Measuring Instruments: Classification, Principle &f Operation of Moving Coil, Moving Iron, Dynamometer type and Induction type meters. Instrument Transformers, Induction type Energy meter, M.D. Indicator, Tri Vector Meter, Power factor meter, Frequency meter, Measurement of Resistance, Transducers and Sensors – Types, Thermistor, Thermo-couple, Pressure Transducers and Strain gauges, Working of Cathode ray oscilloscope
UNIT III: A.C. Circuits and Transformers
1. A.C. Circuits: Fundamentals, Series and parallel R-L-C Circuits, Resonant circuits, Three-phase circuits, Measurement of power by two Wattmeters.
2. Transformers: Single-phase Transformer, Construction, Operation, Equivalent circuit, Regulation, Efficiency, Testing and parallel operation, Three-phase transformer, Auto-transformer
UNIT IV: A.C. Machines
1. Alternators: Construction, Operation, EMF equation, regulation, testing and parallel operation.
2. Synchronous Motors: Operation and performance, Effects of excitation, V – Curve and inverted V – Curve, Methods of starting and uses.
3. Three-Phase Induction Motors: Construction, Principle of Operation, Torque Equation, Slip-torque characteris
4. Single-phase Motors: Types, Principle of operation, characteristics and applications of induction motors and commutator motors
UNIT V: Power System Generation & Protection
1. Generating Stations: Working components, Comparison of Thermal, Hydel, and Nuclear stations, Pollution control, Combined Working, Power Station auxiliaries, Characteristic Curves and Important definitions, Types of tariffs, Power factor correction and economy.
2. Power Systems Protection: Circuit Breakers – Types, Principles of operation and uses. Current Limiting reactors, Relays – Classification, Principle of Operation of Induction type overcurrent relay, Directional and Non-directional relays, Differential relays and Distance relays, Protection of Alternations, Transformers, Bus-bars, Transmission lines, Lightening arrestors, Neutral grounding.
UNIT VI: Transmission and Distribution
1. Transmission: Types of supply systems, Transmission Line parameters, inductance and capacitance, performance of short and medium lines, regulation, Ferranti effect, Corona, Basic concepts of HVDC Transmission, Advantages and disadvantages of HVDC Transmission. Components of lines, supports, conductor spacing, ground clearance and sag, insulators, voltage distribution across the string, string efficiency, methods of improving string efficiency, Earthing and layout of sub-stations.
2. Cables – Classification, insulation resistance, specifications, Distribution – Radial and ring type distributions, variation of load voltage,
UNIT VII: Utilization and Electric Drives
1. Lighting: Laws of Illumination, Types of Lamps, Lighting Schemes for indoor, outdoor, street and factory.
2. Heating and Welding: Principles and application of different resistance heating, direct and indirect arc furnaces, core and core-less induction furnaces, di-electric heating, Welding generators & welding transformers.
3. Electric Traction: Systems of Train Electrification, Speed-time Curves for different services, Schedule speed, Tractive Effort, Specific Energy Consumption, Traction system auxiliaries, Traction motors.
4. Electric Drives: Different Types, nature of the load, Rating of motors, Types of enclosures, Motors for different drives. Electric Braking – Dynamic braking and Counter-current braking of dc motors and 3-phase induction motors.
UNIT VIII: Electrical Estimation and Automation
1. Electrical Wiring: Tools, Wires, Types of wiring, Accessories, Lamp Circuits, Estimating and Costing of domestic, industrial power, irrigation pump sets, Rural electrification, departmental tests, earthing.
2. Automation: Basics of the control system, Basic principles of Programmable Logic Controller (PLC), Parts of PLC, Simple applications with PLC.
UNIT IX: Basic Electronics and Digital Electronics
1. Semi-Conductor Devices: N-Type & P-type, Zener diode, PNP and NPN Transistors, Transistor configurations, input and output characteristics, power supplies – half-wave and full-wave rectifiers. Filters, Zener diode, regulation, Special devices-UJT, FET, LED, SCR, Opto-Coupler, Photodiode, Photo Transistor.
2. Amplifiers: Types, Principles of operation, Characteristics RC coupled, Transformer coupled and Direct-coupled amplifiers. Class A amplifiers, Push-pull amplifiers, Feedback, Difference and Operational amplifiers Oscillators and Electronic Testers, Function Generators, Industrial application of timers, Basics of IC’s.
3. Digital Electronics: Different numbering systems, Inter Conversions, Boolean Algebra, Logic families, Performance of AND, OR, NOT, NOR, NAND gates, Combinational logic circuits, Sequential logic circuits, Registers and Memories, A/D and D/A converters.
UNIT X: Power Electronics and Micro Controller
1. Power Electronic Devices: Construction and working of SCR, GTO, DIAC, TRIAC, Volt-ampere characteristics, Trigging of SCR using UJT Protection.
2. Convertors: Types of Phase-controlled Convertors, Working of AC regulators and Choppers. Types & basic principles of working of Inverters and Cycloconvertors.
3. Speed control: Speed control of D.C.Motors using converters and choppers, Speed control of induction motor using AC Voltage regulators and V/f Control, Switched-mode power supplies (SMPS), UPS.
4. Micro-Controllers: Architecture and Instruction set of 8051, Programming concepts, peripheral IC’s – Function, features, Pin details and interfacing of 8255,8251, 8279, 8257, 8259, RS-232.
Section B:
General Awareness and Numerical Ability :
1. Analytical & Numerical Ability
2. General Awareness
3. English
4. Related to Telangana Culture & Movement
5. Computer Knowledge
TSSPDCL Sub Engineer Exam Pattern 2026
Duration : 120 Minutes
Exam Date : Update Soon
Starting Date of Application Form : Notified Soon
Last Date of Application Form : Notified Soon
TSSPDCL Sub Engineer Syllabus 2026 - Overview
| Organization Name | Telangana State Southern Power Distribution Company Limited (TSSPDCL) |
| Post Name | Sub Engineer (Electrical) |
| Total Vacancy | Notified Soon |
| Apply Mode | Online |
| Job Location | Telangana |
| Selection Process | Written exam, Document Verification |
| Category | Syllabus and Exam Pattern |
| Official Website | tssouthernpower.cgg.gov.in |
TSSPDCL Sub Engineer Syllabus 2026
Technical Subject (Electrical) :
UNIT 1: Basic Electrical Engineering
1. Ohms law and Kirchhoff’s laws, Star/Delta transformation, Network theorems, Power and Energy, Heating effects of electric current, Magnetic effects, Electromagnetic induction, Electrostatics. Batteries, Types of Electrical engineering materials – Conducting, Semi-conducting, Magnetic, Insulating, Di-electric materials – Properties and Uses.
UNIT II: D.C. Machines & Measurements
1. D.C.Generators: Construction, Operation, Types, EMF Equation, Windings, Characteristics, Efficiency and Parallel operation. DC Motors: Principle of operation, Back EMF, Torque Equation, Types, Characteristics, Starters, Speed Control, Losses, Efficiency and Testing.
2. Measuring Instruments: Classification, Principle &f Operation of Moving Coil, Moving Iron, Dynamometer type and Induction type meters. Instrument Transformers, Induction type Energy meter, M.D. Indicator, Tri Vector Meter, Power factor meter, Frequency meter, Measurement of Resistance, Transducers and Sensors – Types, Thermistor, Thermo-couple, Pressure Transducers and Strain gauges, Working of Cathode ray oscilloscope
UNIT III: A.C. Circuits and Transformers
1. A.C. Circuits: Fundamentals, Series and parallel R-L-C Circuits, Resonant circuits, Three-phase circuits, Measurement of power by two Wattmeters.
2. Transformers: Single-phase Transformer, Construction, Operation, Equivalent circuit, Regulation, Efficiency, Testing and parallel operation, Three-phase transformer, Auto-transformer
UNIT IV: A.C. Machines
1. Alternators: Construction, Operation, EMF equation, regulation, testing and parallel operation.
2. Synchronous Motors: Operation and performance, Effects of excitation, V – Curve and inverted V – Curve, Methods of starting and uses.
3. Three-Phase Induction Motors: Construction, Principle of Operation, Torque Equation, Slip-torque characteris
4. Single-phase Motors: Types, Principle of operation, characteristics and applications of induction motors and commutator motors
UNIT V: Power System Generation & Protection
1. Generating Stations: Working components, Comparison of Thermal, Hydel, and Nuclear stations, Pollution control, Combined Working, Power Station auxiliaries, Characteristic Curves and Important definitions, Types of tariffs, Power factor correction and economy.
2. Power Systems Protection: Circuit Breakers – Types, Principles of operation and uses. Current Limiting reactors, Relays – Classification, Principle of Operation of Induction type overcurrent relay, Directional and Non-directional relays, Differential relays and Distance relays, Protection of Alternations, Transformers, Bus-bars, Transmission lines, Lightening arrestors, Neutral grounding.
UNIT VI: Transmission and Distribution
1. Transmission: Types of supply systems, Transmission Line parameters, inductance and capacitance, performance of short and medium lines, regulation, Ferranti effect, Corona, Basic concepts of HVDC Transmission, Advantages and disadvantages of HVDC Transmission. Components of lines, supports, conductor spacing, ground clearance and sag, insulators, voltage distribution across the string, string efficiency, methods of improving string efficiency, Earthing and layout of sub-stations.
2. Cables – Classification, insulation resistance, specifications, Distribution – Radial and ring type distributions, variation of load voltage,
UNIT VII: Utilization and Electric Drives
1. Lighting: Laws of Illumination, Types of Lamps, Lighting Schemes for indoor, outdoor, street and factory.
2. Heating and Welding: Principles and application of different resistance heating, direct and indirect arc furnaces, core and core-less induction furnaces, di-electric heating, Welding generators & welding transformers.
3. Electric Traction: Systems of Train Electrification, Speed-time Curves for different services, Schedule speed, Tractive Effort, Specific Energy Consumption, Traction system auxiliaries, Traction motors.
4. Electric Drives: Different Types, nature of the load, Rating of motors, Types of enclosures, Motors for different drives. Electric Braking – Dynamic braking and Counter-current braking of dc motors and 3-phase induction motors.
UNIT VIII: Electrical Estimation and Automation
1. Electrical Wiring: Tools, Wires, Types of wiring, Accessories, Lamp Circuits, Estimating and Costing of domestic, industrial power, irrigation pump sets, Rural electrification, departmental tests, earthing.
2. Automation: Basics of the control system, Basic principles of Programmable Logic Controller (PLC), Parts of PLC, Simple applications with PLC.
UNIT IX: Basic Electronics and Digital Electronics
1. Semi-Conductor Devices: N-Type & P-type, Zener diode, PNP and NPN Transistors, Transistor configurations, input and output characteristics, power supplies – half-wave and full-wave rectifiers. Filters, Zener diode, regulation, Special devices-UJT, FET, LED, SCR, Opto-Coupler, Photodiode, Photo Transistor.
2. Amplifiers: Types, Principles of operation, Characteristics RC coupled, Transformer coupled and Direct-coupled amplifiers. Class A amplifiers, Push-pull amplifiers, Feedback, Difference and Operational amplifiers Oscillators and Electronic Testers, Function Generators, Industrial application of timers, Basics of IC’s.
3. Digital Electronics: Different numbering systems, Inter Conversions, Boolean Algebra, Logic families, Performance of AND, OR, NOT, NOR, NAND gates, Combinational logic circuits, Sequential logic circuits, Registers and Memories, A/D and D/A converters.
UNIT X: Power Electronics and Micro Controller
1. Power Electronic Devices: Construction and working of SCR, GTO, DIAC, TRIAC, Volt-ampere characteristics, Trigging of SCR using UJT Protection.
2. Convertors: Types of Phase-controlled Convertors, Working of AC regulators and Choppers. Types & basic principles of working of Inverters and Cycloconvertors.
3. Speed control: Speed control of D.C.Motors using converters and choppers, Speed control of induction motor using AC Voltage regulators and V/f Control, Switched-mode power supplies (SMPS), UPS.
4. Micro-Controllers: Architecture and Instruction set of 8051, Programming concepts, peripheral IC’s – Function, features, Pin details and interfacing of 8255,8251, 8279, 8257, 8259, RS-232.
Section B:
General Awareness and Numerical Ability :
1. Analytical & Numerical Ability
2. General Awareness
3. English
4. Related to Telangana Culture & Movement
5. Computer Knowledge
TSSPDCL Sub Engineer Exam Pattern 2026
Duration : 120 Minutes
| S.No | Subject | No.of Question | Marks |
| Section A | Technical Subject (Electrical) | 80 | 80 |
| Section B | General Awareness and Numerical Ability | 20 | 20 |
| Total | 100 | 100 |
Exam Date : Update Soon
Starting Date of Application Form : Notified Soon
Last Date of Application Form : Notified Soon
TSSPDCL Sub Engineer Exam Free Online Test Series
Crack TSSPDCL Sub Engineer Mock Test 2026 with the help of Online Test Series or Free Mock Test. Every Sample Paper in TSSPDCL Sub Engineer Exam has a designated weightage so do not miss out any Paper. Preprare for TSSPDCL Sub Engineer Mock Test and check your test scores.
TSSPDCL Sub Engineer Exam Free Online Question Bank
TSSPDCL Sub Engineer question answer with solutions are available in Hindi & English. Join MCQ, Important Questions, Question Bank, questions and answers for Free TSSPDCL Sub Engineer exam preparation.
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TSSPDCL Sub Engineer Exam (Electrical) - English100 questions • 120 mins • 100 marks
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