Your roadmap · आपका रोडमैप
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Admission & first meetingप्रवेश और पहली मुलाकातEnquire at your nearest NDSS centre, meet the teacher, fix the batch time and get your study material.
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Semester 4 — subject classesसेमेस्टर 4 — विषयवार कक्षाएँEvery theory subject of the term, unit by unit, with notes, numericals and doubt classes.
Electrical Machines-IITransmission and Distribution of Electrical Powerडिजिटल इलेक्ट्रॉनिक्सPower ElectronicsElectrical Design, Drawing and Estimating
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Labs, practicals & project workलैब, प्रैक्टिकल और प्रोजेक्टExperiments / jobs / project work as in the syllabus, with practical file and viva preparation.
Electrical Machines-II LabPower Electronics LabDigital Electronics Lab
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Unit tests & mid-termयूनिट टेस्ट और मिड-टर्मA test after every unit and a mid-term in the university / board pattern.
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Semester 4 mock testमॉक टेस्टA full mock test of all subjects before the exam, with analysis.
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Semester 4 exam (university / board)सेमेस्टर / वार्षिक परीक्षाPrevious papers, important questions and full revision.
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Online tests & resultऑनलाइन टेस्ट और रिज़ल्टTake the tests online; your marks and result show in your student login and at the centre.
सिलेबस · पाठ्यक्रम
8 subjects · 42 chapters · 171 topics
Electrical Machines-II6 chapters · 6 Months
Subject page →+
01Three-Phase Induction Motors
5 टॉपिक+
- Construction: squirrel cage and slip ring
- Rotating magnetic field and synchronous speed
- Slip and rotor frequency
- Torque equation and torque-slip characteristics
- Power flow, losses and efficiency
02Starting and Speed Control of Induction Motors
5 टॉपिक+
- Need of starters
- DOL, star-delta and autotransformer starters
- Rotor resistance starter
- Speed control methods
- Variable frequency drives
03Alternators
5 टॉपिक+
- Construction: salient and cylindrical rotor
- EMF equation, pitch and distribution factors
- Armature reaction
- Voltage regulation by EMF method
- Synchronisation and parallel operation
04Synchronous Motors
5 टॉपिक+
- Principle and why it is not self-starting
- Starting methods
- Effect of excitation, V and inverted V curves
- Synchronous condenser
- Hunting and damper winding
05Single-Phase Motors
5 टॉपिक+
- Double revolving field theory
- Split phase and capacitor start motors
- Capacitor-run and capacitor start-run motors
- Shaded pole motor
- Universal motor
06Special Machines
4 टॉपिक+
- Stepper motor
- AC and DC servo motors
- BLDC motor
- Linear induction motor
Transmission and Distribution of Electrical Power6 chapters · 6 Months
Subject page →+
01Introduction to Transmission and Distribution
4 टॉपिक+
- Single-line diagram of a power system
- Standard voltages in India
- Advantages of high-voltage transmission
- AC and HVDC transmission
02Overhead Line Components
5 टॉपिक+
- Conductor materials and ACSR
- Line supports: poles and towers
- Cross arms, stays and earth wire
- Sag and its calculation
- Spacing and clearances
03Line Parameters and Performance
5 टॉपिक+
- Resistance, inductance and capacitance of lines
- Short, medium and long lines
- Efficiency and regulation of short lines
- Ferranti effect
- Corona
04Insulators
4 टॉपिक+
- Insulator materials
- Pin, suspension, strain and shackle insulators
- Potential distribution and string efficiency
- Methods to improve string efficiency
05Underground Cables
4 टॉपिक+
- Construction of cables
- Types: PVC, XLPE and oil-filled
- Laying of cables
- Cable faults and Murray loop test
06Substations and Distribution Systems
5 टॉपिक+
- Types of substations
- Substation equipment: CB, isolator, LA, CT, PT
- Radial, ring main and interconnected systems
- Feeders, distributors and service mains
- Switching sequence and safety
डिजिटल इलेक्ट्रॉनिक्स5 chapters · 6 Months
Subject page →+
01Unit 1: Number Systems and Codes
4 टॉपिक+
- Binary, octal, decimal and hexadecimal systems
- Conversion between number systems
- Binary arithmetic, 1's and 2's complement
- BCD, excess-3, Gray and ASCII codes
02Unit 2: Logic Gates and Boolean Algebra
5 टॉपिक+
- Basic gates: AND, OR, NOT
- Universal gates: NAND and NOR
- XOR and XNOR gates
- Boolean laws and De Morgan's theorems
- SOP and POS forms, Karnaugh map up to 4 variables
03Unit 3: Combinational Circuits
5 टॉपिक+
- Half adder and full adder
- Half and full subtractor
- Multiplexer and demultiplexer
- Encoder and decoder
- Comparator and parity generator
04Unit 4: Sequential Circuits
4 टॉपिक+
- Latch and flip-flop
- SR, JK, D and T flip-flops
- Race-around condition and master-slave JK
- Edge triggering
05Unit 5: Counters, Registers and Memories
6 टॉपिक+
- Asynchronous (ripple) counters
- Synchronous counters and MOD-N counters
- Shift registers: SISO, SIPO, PISO, PIPO
- Ring and Johnson counters
- Logic families (TTL, CMOS), ADC and DAC
- RAM, ROM and their types
Power Electronics5 chapters · 6 Months
Subject page →+
01Unit 1: Power Semiconductor Devices
5 टॉपिक+
- SCR: construction, two-transistor analogy and V-I characteristics
- Latching and holding current, ratings
- TRIAC and DIAC
- GTO, power MOSFET and IGBT
- Comparison of power devices
02Unit 2: SCR Triggering, Commutation and Protection
5 टॉपिक+
- Methods of turning on an SCR
- R, RC and UJT triggering circuits
- Natural and forced commutation
- Series and parallel operation
- Protection: snubber, fuse, heat sink
03Unit 3: Controlled Rectifiers
5 टॉपिक+
- Single-phase half-wave controlled rectifier with R and RL load
- Freewheeling diode
- Single-phase half-controlled and fully controlled bridge
- Average output voltage and firing angle
- Three-phase controlled rectifiers (basic)
04Unit 4: Choppers and Inverters
5 टॉपिक+
- DC chopper principle and duty cycle
- Step-down and step-up choppers
- Single-phase half-bridge and full-bridge inverters
- PWM technique (basic)
- Applications in DC drives
05Unit 5: AC Controllers and Applications
5 टॉपिक+
- AC voltage controller using TRIAC
- Fan regulator and light dimmer
- Cycloconverter (basic)
- UPS and SMPS
- Speed control of DC and AC motors
Electrical Design, Drawing and Estimating6 chapters · 6 Months
Subject page →+
01Symbols, Standards and Regulations
4 टॉपिक+
- Electrical symbols as per IS
- IS 732 and National Electrical Code
- CEA (Measures relating to Safety and Electric Supply) Regulations
- Earthing code IS 3043
02Residential Wiring Design and Estimation
5 टॉपिक+
- Load estimation
- Sub-circuits and number of points
- Selection of cables, MCB and RCCB
- Voltage drop calculation
- Estimate and bill of quantities for a house
03Commercial and Industrial Installations
5 टॉपिक+
- Motor full-load current and cable sizing
- Power wiring layout for a workshop
- Motor starters and control
- Power factor correction capacitors
- Estimate for a small industry
04Overhead Lines and Service Connections
4 टॉपिक+
- LT and 11 kV line materials
- Poles, cross arms, insulators and stays
- Estimate of an LT line
- Service connection
05Substations
3 टॉपिक+
- Pole-mounted substation
- Plinth-mounted substation
- Equipment, earthing layout and estimate
06Panels and Distribution Boards
4 टॉपिक+
- Single line diagram
- Main and sub-distribution boards
- Bus bar sizing
- Panel layout drawing
Electrical Machines-II Lab5 chapters · 6 Months
Subject page →+
01Three-Phase Induction Motor Tests
4 टॉपिक+
- No-load test
- Blocked rotor test
- Load test and performance curves
- Circle diagram (introduction)
02Starting and Speed Control
3 टॉपिक+
- DOL and star-delta starting
- Speed control with VFD
- Reversal of rotation
03Alternator Tests
3 टॉपिक+
- Open-circuit and short-circuit tests
- Regulation by EMF method
- Synchronisation by lamp method
04Synchronous Motor Tests
2 टॉपिक+
- Starting of synchronous motor
- V and inverted V curves
05Single-Phase Motors
2 टॉपिक+
- Capacitor-start motor: starting and reversal
- Study of ceiling fan motor
Power Electronics Lab5 chapters · 6 Months
Subject page →+
01Chapter 1: SCR Characteristics
3 टॉपिक+
- V-I characteristics of SCR
- Latching and holding current
- Effect of gate current on breakover voltage
02Chapter 2: Triggering Circuits
3 टॉपिक+
- R triggering
- RC triggering
- UJT relaxation oscillator triggering
03Chapter 3: Controlled Rectifiers
3 टॉपिक+
- Single-phase half-wave controlled rectifier
- Single-phase half-controlled and fully controlled bridge
- Effect of freewheeling diode
04Chapter 4: Choppers and Inverters
3 टॉपिक+
- Step-down chopper with variable duty cycle
- Single-phase bridge inverter
- MOSFET / IGBT characteristics
05Chapter 5: AC Power Control
2 टॉपिक+
- V-I characteristics of DIAC and TRIAC
- Lamp dimmer / fan regulator using DIAC-TRIAC
Digital Electronics Lab4 chapters · 6 Months
Subject page →+
01Chapter 1: Logic Gates
2 टॉपिक+
- Digital trainer kit and IC pin identification
- Truth tables of AND, OR, NOT, NAND, NOR, XOR gates (7408, 7432, 7404, 7400, 7402, 7486)
02Chapter 2: Universal Gates and Boolean Laws
3 टॉपिक+
- Basic gates using only NAND gates
- Basic gates using only NOR gates
- Verification of De Morgan's theorems
03Chapter 3: Combinational Circuits
4 टॉपिक+
- Half adder and full adder
- Half and full subtractor
- 4:1 multiplexer and 1:4 demultiplexer
- BCD to 7-segment decoder
04Chapter 4: Flip-flops and Counters
4 टॉपिक+
- SR, JK, D and T flip-flops
- Ripple counter using JK flip-flops
- Decade counter using IC 7490
- Shift register
About this course
आप यह कर पाएँगे
- Complete Electrical Machines-II syllabus with regular tests
- Complete Transmission and Distribution of Electrical Power syllabus with regular tests
- Complete Digital Electronics syllabus with regular tests
- Complete Power Electronics syllabus with regular tests
- Complete Electrical Design, Drawing and Estimating syllabus with regular tests
- Complete Electrical Machines-II Lab syllabus with regular tests
- Complete Power Electronics Lab syllabus with regular tests
- Complete Digital Electronics Lab syllabus with regular tests
यह किसके लिए है
- Diploma Electrical Engineering students of Semester 4 (BTEUP)
- Students preparing for JE (Electrical) exams
आपको क्या चाहिए
- Electrical Machines-I of Semester 3
Online tests & result
Practice and unit tests online; marks and result show in your student login and at the centre.
Student login →
सवाल
Is the lab separate?
Yes. Machine tests are done in the Electrical Machines-II Lab; this course covers the theory paper.
Are VFDs and BLDC motors included?
Yes. Modern drives and special machines are covered as per the revised syllabus.
Is this course based on the BTEUP syllabus?
Yes. The units follow the BTEUP (Board of Technical Education, Uttar Pradesh) diploma syllabus. If your polytechnic follows a different board or a revised scheme, the centre teaches your own syllabus.
Are sag and line efficiency numericals included?
Yes. Sag, short-line efficiency, string efficiency and number of discs problems are solved.
Is substation practice covered?
Yes. Equipment, layout and the safe switching sequence are explained.
Which syllabus does this course follow?
It follows the BTEUP (Board of Technical Education, Uttar Pradesh) syllabus of Digital Electronics (Semester 3 / 4). Where your polytechnic follows a different board or a revised syllabus, the centre follows your own syllabus.
Will it help in the semester examination?
Yes. Every unit is covered with solved examples, unit-wise MCQs and previous-year style questions for the BTEUP theory and practical exams.
Is the Digital Electronics Lab covered too?
The lab is a separate course; here every circuit is explained with its truth table so that lab experiments become easy.
