Electrical and Electronics Engineering and Technology Tutorials
Transformer
- Transformer, Construction, Working, Types Application & Limitations
- Why Transformer Rated In kVA, Not in KW?
- EMF Equation Of a Transformer
- What is Ideal Transformer
- Transformer Losses – Types of Energy Losses in a Transformer
- How to Find the Rating of Transformer in kVA (Single Phase & Three Phase)?
- TRANSFORMER NAMEPLATE (GENERAL REQUIREMENTS).
- Transformer Phasing: The Dot Notation and Dot Convention
- Transformer Efficiency, All day Efficiency & Condition for Maximum Efficiency
- Can we operate a 60HZ Transformer on 50Hz Supply Source and Vice Versa?
- Is it possible to Operate a 500Hz Transformer on 50Hz ?
- Is it possible to Operate a 50Hz Transformer on 500Hz frequency Supply?
- What is Shunt Reactor – Types, Construction & Applications
- Transformers Insulation Materials in Oil-Immersed & Dry Type T/F
- Transformer Performance & Electrical Parameters
- Power Transformer Protection & Faults
- Maintenance of Transformer – Power Transformers Maintenance, Diagnostic & Monitoring
- Current Transformers (CT) – Types, Characteristic & Applications
- Transformers Fire Protection System – Causes, Types & Requirements
- Advantages and Disadvantages of Three Phase Transformer over Single Phase Transformer.
- Uses and Application of Transformer
- Transformers MCQs With Explanatory Answers
Resistors
- Resistor & Types of Resistors | Fixed, Variable, Linear & Non-Linear
- Resistor Symbols – Variable, Adjustable & Special Resistors Symbols
- Resistor Color Code Calculators – 3, 4, 5 & 6 Band Resistors Calculation
- Insulating And Dielectric Materials – Types, Properties & Applications
- Introduction to Series, Parallel and Series-Parallel Connections
- Insulation Resistance of a Cable | Why Cables are insulated?
- Parallel Resistor Calculator
- LED Resistor Calculator | Required Value of Resistor for LED’s Circuit Calculator
- Standard Resistor Closest Value Calculator
- SMD Resistor Codes: How to Find the value of SMD Resistors
- How to find The value of Burnt Resistor ( By three handy Methods )
Electric Circuit Analysis
- What is an Electric Circuit? Types of Circuits, Network & Parts Of Circuit
- Ohm’s Law with simple explanation
- Norton’s Theorem. Easy Step by Step Procedure with Example (Pictorial Views)
- Thevenin’s Theorem. Step by Step Procedure with Solved Example
- Maximum Power Transfer Theorem for AC & DC Circuits
- Kirchhoff’s Current & Voltage Law (KCL & KVL) | Solved Example
- SUPERNODE Circuit Analysis | Step by Step with Solved Example
- SUPERMESH Circuit Analysis | Step by Step with Solved Example
- Cramer’s Rule | Cramer’s Rule Calculator 2 & 3 Equations System
- Voltage Drop Calculation with Examples
- Which Bulb Glows Brighter When Connected in Series and Parallel & Why?
- How To Locate Faults In Cables? Cable Faults, Types & Causes
- Delta Connection (Δ): 3 Phase Power, Voltage & Current Values
- Star Connection (Y): Three Phase Power, Voltage & Current Values
- Electrical & Electronics Engineering Calculators Online
- How to Calculate AC & DC Resistance?
- Star and Delta Connected Lighting Loads
- Three Phase Current Values in a 3-Phase System
- Single Phase AC Circuits MCQs ( With Explanatory Answers)
- Three Phase AC Circuits MCQs With Explanatory Answers
- 15+ Must Have Android Apps for Electrical & Electronics Engineers & Students
- 12+ Top iOS Apps for Electrical & Electronics Engineers & Students
- 10+ Online Design & Simulation Tools for Electrical/Electronics Engineers
- How to Find the Number of Nodes, Branches, Loops and Meshes in a Circuit?
Power System
- Active, Reactive, Apparent and Complex Power. Simple Explanation with formulas.
- All About Electrical Protection Systems, Devices And Units
- Busbars and Connectors in HV and EHV installations
- Cables Feeder Protection – Faults Types, Causes & Differential Protection
- Comparison between AC and DC Transmission System ( With their advantages and disadvantages)
- Corona Effect & Discharge in Transmission Lines & Power System
- Design & Installation of Control & Monitoring Systems in Electrical Engineering
- Design and Installation of EHV/EHV and EHV/HV Substations
- Design of Grounding / Earthing System in a Substation Grid
- Electric Power System – Generation, Transmission & Distribution of Electricity
- Electric Stress Control in Cable, Joints & Terminations
- Electrical Transmission Networks – EHV and HV Overhead Lines
- Failures In Electrical Systems, Equipments & Materials
- Fault Current Limiter and Their Types
- High Inrush Current in Capacitor Switching and Ways to Prevent It.
- HV And MV Switch Disconnectors And Isolators in Power System
- Integration of Renewable Energy with Grid System
- Internet of Things (IOT) and Its Applications in Electrical Power Industry
- Introduction to Harmonics – Effect of Harmonics on Power System
- Is Reactive Power Useful? Importance of Reactive Power
- MV & HV Cable Termination to Equipment & Joints
- Nuclear Power. Why is It The Last Option in Most Countries?
- Overhead Lines Protection – Faults & Protection Devices
- Power Distribution in Industries – All You Need to Know
- Power System MCQs with Explanatory Answers
- Power System Restoration – Outage, Voltage Collapse & Switching Programs
- Primary and Secondary or Backup protection in a Power System
- SCADA Systems for Electrical Distribution
- Short Circuit Currents And Symmetrical Components
- Submarine Cables – Construction, Characteristics, Cables Laying & Joints
- Treeing in XLPE Insulated Medium & High Voltage Cables
- Types & Characteristics of Surge Arresters
- Types of Control & Communication Cables
- What Exactly Is A Smart Grid? Smart Grid Applications
- What is Distributed Control System (DCS)?
- Why Power Plant Capacity Rated in MW and not in MVA?
- Why Power Transmission Cables & Lines are Loose on Electric Poles & Transmission Towers?
- Working on De-Energized Electric Circuits, Networks & Equipments
Power Factor
- What is Power Factor (Cosθ) ? Cos fi or P.f Definitions & Formulas
- Power Factor improvement Methods with Their advantages & Disadvantages
- Causes of low Power Factor
- Advantages of Power factor improvement and Correction
- Disadvantages of Low Power Factor
- CAPACITOR BANKS – CHARACTERISTICS AND APPLICATIONS
- How to Calculate the Suitable Capacitor Size in Farads & kVAR for Power factor Improvement
- How to Convert Capacitor Farads into kVAR & Vice Versa (For Power factor improvement)
- Analysis of Reactive Power in Power System
Motors
- Why Motor rated in kW instead of kVA?
- What is Stepper Motor: Construction, Types and Modes of Operation
- Brushless DC Motor: Construction, Working Principle & Applications
- Servo Motor – Types, Construction, Working, Controlling & Applications
- What is Motor Efficiency & How to improve it?
- Cable Size Calculation for LT & HT Motors
- DC Drives – Construction, Working & Classification of Electrical DC Drives
- AC Drives – Classification of AC Drives & VFD
- Electrical Interlocking – Power & Control Diagram
- Abnormal Operating Condition and Causes of Induction Motors
- Important Terms and Definitions related to Motor Control and Protection
- Three Phase Motor Power & Control Wiring Diagrams
- Starting & Stopping of 3-Phase Motor from more than One Place Power & Control diagrams
- Voltage And Power Equations of a DC Motor
- Star Delta 3-phase Motor Automatic starter with Timer
- What is motor starter?
- What is a Contactor?
- Why We Need to Install a Starter with a Motor?
Alternator
- Emergency Generator Set – Construction, Installation, Maintenance & Wiring
- Alternator / Generator MCQs with Explanatory Answers)
- EMF Equation of an Alternator and AC Generator
- Why Generator & Alternator rated in kVA. Not in kW?
Batteries
- Why Battery rated in Ah (Ampere hour) and not in VA.
- Types of Batteries and Cells and Their Applications
- How to test a battery with Test meter?
- Series, Parallel and Series-Parallel Connection of Batteries
- Why we can’t store AC in Batteries instead of DC?
- How to Calculate the Battery Charging Time & Battery Charging Current – Example
- Series Connection of Solar Panel with Auto UPS System
- Parallel Connection of Batteries with Solar Panel
- Manual UPS Wiring Diagram With Change Over Switch System.
- How to Wire Solar Panel to 220V inverter, 12V battery ,12V,DC Load?
- How to Wire Solar Panel to 12V battery and 12V,DC Load?
- Battery: Batteries MCQs with Explanatory Answers
Logic Gates
- Logic NOT Gate – Digital Inverter Logic Gate
- Digital Logic AND Gate
- Digital Logic OR Gate
- Digital Logic NOR Gate – Universal Gate
- Exclusive-NOR (XNOR) Digital Logic Gate
- Digital Logic NAND Gate – Universal Gate
- NOR and NAND Implementation – Two Level & Multilevel Implementation
- Two-Level Logic Implementation – Combinational Logic Implementation
Sequential Logic Circuits
- Digital Latches – Types of Latches – SR & D Latches
- Digital Synchronous Counter – Types, Working & Applications
- Digital Asynchronous Counter (Ripple Counter) – Types, Working & Application
- Ring Counter & Johnson Counter – Construction & Operation
- Digital Flip-Flops – SR, D, JK and T Flip Flops
Combinational Digital Circuits
- Binary Encoder – Construction, Types & Applications
- Binary Adder & Subtractor – Construction, Types & Applications
- Binary Multiplier – Types & Binary Multiplication Calculator
- Binary Decoder – Construction, Types & Applications
- MUX – Digital Multiplexer | Types, Construction & Applications
- DEMUX – Demultiplexer | Types, Construction & Applications
- Comparator and Digital Magnitude Comparator
- Ripple Carry And Carry Look Ahead Adder
- Counter and Types of Electronic Counters
- BCD to 7-Segment Display Decoder – Construction, Circuit & Operation
Boolean Algebra & Logic Families
- Sum Of Product (SOP) & Product Of Sum (POS)
- Karnaugh Maps (K-Map), Truth Tables, Boolean Expressions & Examples
How To
- How to Test a Capacitor? 6 Ways to Check a Capacitor – 6 Methods
- How to Test a Diode using Digital & Analog Multimeter – 4 Ways.
- How to Check a Transistor by Multimeter (DMM+AVO) – NPN & PNP – 4 Ways
- How to Find the value of SMD Resistors
- How to Find the Size of Earth Conductor, Earthing Lead & Earth Electrodes?
- How to make basic Electrical Projects in LabVIEW?
- How to Make a Simple Solar Cell? Working of Photovoltaic Cells
- How to Test & Fix the Printed Circuit Board (PCB) Defects?
- How To Design a PCB (Step by Step & Pictorial Views)
- How to Program PIC18 Microcontroller in C. Step by Step Tutorial (Pictorial Views)
- How to Connect a Portable Generator to the Home Supply – 4 Methods
- How to Find The Suitable Size of Cable & Wire for Electrical Wiring Installation (Solved Examples in British and SI System)
- How to Calculate the Value of Resistor for LED’s (with different types of LED Circuits)
- How to Calculate/Find the Rating of Transformer in kVA (Single Phase and Three Phase)?
- How to Find the value of Ceramic Capacitors?
- How to wire a Distribution Board with RCD (Residual Current Devices)?
- How to connect / Install a Capacitor with a Ceiling Fan (Part 2)
- How to Calculate the Battery Charging Time & Battery Charging Current – Example
- How to connect a Solar Panel?
- How to install ceiling Fan with a Dimmer Switch ? (Part 1)
- How To Find/Calculate the Number of Fluorescent Lamps in a Sub Circuit?
- How to Determine the Number of Lamps in Final Sub Circuit?
- How To Wire Two 24V Solar Panels in Parallel with Two, 12V Batteries in Series with Automatic UPS System
- How much Watts Solar Panel We need for our Home Electrical appliances?
- How to Connect Automatic UPS / Inverter to the Home Supply System?
- How To Wire a 3-Phase kWh meter? Installation of 3-Phase Energy Meter.
- How to Control One Light Bulb from Six Different Places?
- How to Control Each Lamp by Separately Switch in Parallel Lighting Circuit?
- How to Control a Light Bulb by a Single Way or One-way Switch?
- How To Wire a Single Phase kWh Meter? Installation of 1-Phase Energy Meter.
- How To Wire Lamps in Parallel?
- How To Wire Lights in Series?
- How To Wire Switches in Parallel?
- How To Calculate Your Electricity Bill. Easy & Simple Explanation.
- How to start a Star Delta 3-phase Motor by using Automatic starter with Timer
- How to Make a Simple LED Flashing Circuit using 555 Timer IC
- How To Perform a Continuity Test for Electrical Components with Multimeter?
- How to Test a Relay? Checking SSR & Coil Relays
- How to Wire Auto & Manual Changeover & Transfer Switch
Difference Between
- Difference Between MCB, MCCB, ELCB & RCB, RCD or RCCB Circuit Breakers
- Difference Between Active and Reactive Power
- Difference between Analog and Digital Multimeter
- Difference Between Capacitor and Supercapacitor
- Difference Between a Battery and a Capacitor
- Difference between Circuit Breaker and Isolator / Disconnector
- Difference between Fuse and Circuit Breaker
- Difference between Contactor and Starter?
- Difference Between Relay and Circuit Breaker
- Difference between Power Transformers and Distribution Transformers?
- Difference between Star and Delta Connections – Comparison Of Y/Δ
- Difference between AC and DC Resistance & How to calculate it?
- Difference Between Electrical and Electronic Engineering?
- Difference between Active and passive Components ?
- Difference between Linear and Nonlinear Circuit?
- Difference between Real Ground and Virtual Ground?
- Difference between Unilateral and Bi-Lateral Circuits & Elements?
- Differences between E.M.F and Voltage (P.d)?
- Difference Between Neutral, Ground and Earth?
- Difference between a VOLTAMETER and a VOLTMETER?
Switching & Circuit Breaker
- MCB (Miniature Circuit Breaker) & Construction, Working, Types & Uses
- Air Circuit Breaker (ACB): Construction, Operation, Types and Uses
- How to Read MCB Nameplate Data Rating Printed on it?
- HRC Fuse (High Rupturing Capacity Fuse) and its Types
- Fuse and Types of Fuses & Construction, Operation & Applications
- Types of Switches & Construction, Working & Applications of Switches
- Different Types Of Relays, Their Construction, Operation & Applications
- How to Test a Relay? Checking SSR & Coil Relays
- Solid State Relay (SSR) – Types of SSR Relays
Electrical Essentials
- Types of Solar Panel and Which one is the best PV Panel
- A Complete Guide about Solar Panel Installation. Step by Step Procedure with Calculation & Diagrams
- Earthing and Electrical Grounding Installation | A Complete Guide
- Different Types of Wiring Systems and Methods of Electrical Wiring
- “How to” Electrical & Electronics Engineering Tutorials
- Electrical Wiring Installation Diagrams & Tutorials
- Basic Electrical & Electronics Interview Questions & Answers
- Electrical / Electronics Calculator
- Basic Electrical & Electronics Projects
- Electrical / Electronics MCQs with Explanatory Answers
Electrical & Electronic Symbols
- Basic Electrical and Electronic Symbols
- Transformer Symbols
- Motors Symbols
- Generator and Alternator Symbols
- Resistor Symbols
- Capacitor Symbols
- Inductor Symbols
- Fuse, Circuit Breaker and Protection Symbols
- Switch and Push Button Symbols
- Relay Symbols
- Diode Symbols
- Transistor, MOSFET and IGFET Symbols
- Thyristor, DIAC and TRIAC Symbols
- Electronic Logic Circuits and Programming Symbols
- Digital Logic Gates Symbols
- Digital Flip-Flop and Latches Symbols
- Electronic Filters Symbols
Miscellaneous
Basic Electrical & Electronics Interview Questions & Answers
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