Posts by category
- Category: Automation
- Category: Basics
- Electrical wiring colour codes
- Electric Short Circuit
- Real, Reactive, Complex and Apparent power
- Alternating current basics
- Conductance | What is conductance?
- Capacitance| What is a capacitor?
- Inductance | What is an inductor?
- What is Electric Power?
- What is energy?
- What is Resistance?
- Electric Current and Current Flow
- Electric Charge
- Voltage and Electric potential
- Difference between Neutral and Earth
- The direction of electric current flow
- Category: Circuit Theory
- Current Division rule
- Norton’s Theorem – Explained
- Thevenin’s Theorem -explanation, equivalent circuit & examples
- Kirchhoff’s voltage and current laws – Explained
- Ohm’s Law – Relationship between current and voltage
- Difference between over-current and overload
- Transformer Action
- Difference between Higher potential and lower potential
- Voltage division rule | Potential divider circuit
- Series and Parallel circuits
- What is an Electric Circuit?
- Difference between volts and watts
- What is short circuit?
- Working of Diode rectifiers (Uncontrolled rectifiers)
- What is inductance?
- What is voltage?
- What is resistance?
- Category: Electrical Machines
- Voltage regulation of transformers
- Transformer – Working Principle, Construction and operation
- Transformer – FAQ | Interview Questions -Part 3
- Transformer – FAQ | Interview Questions -Part -2
- Why is a transformer rated in KVA?
- Transformer -FAQ | Interview Questions- Part -1
- Buchholz Relay – Working Principle, Construction and Operation
- What is meant by stalling of motor?
- Types and comparison of induction motor starters
- What will happen if a DC voltage is applied to the transformer coil?
- Which is the most efficient electrical machine?
- Operation of generators
- Category: Equipments
- Relay – Operation, types and applications
- How does a LCD work?
- Metal halide (MH) lamp
- How refrigerators work?
- How does a car Air Conditioner work?
- How does a speaker work?
- How does a scanner work?
- Optical Mouse
- Fluorescent lamps
- How Does an incandescent Bulb Work?
- How do CFL’s work / How are they different from Incandescent Lights?
- Category: Integrated Circuits
- Category: Others
- Category: Power Electronics and Drives
- Category: Power system
- Difference between single-phase and three-phase power AC supplies
- Difference between Short circuit and overload
- Power Factor – Importance, Calculation and Correction techniques
- What is ammeter selector switch?
- Why the power system is divided into several protections zones?
- Which is the most common fault occuring in the power system?
- What are the different faults occurring in the overhead transmission lines?
- On which part of the power system, the occurrence of failure / abnormal condition is more?
- Comparision of conventional energy resources
- How do Fuel Cells Work?
- Category: Protection and switch gears
- Difference between earth leakage relay and earth fault relay
- What is an arc chute?
- Overload relay – Principle of operation, types, connection
- What is an MCB?
- Miniature Circuit Breaker (MCB) – Principle of operation
- Difference between MCB, MCCB, RCCB, RCBO and Isolator
- Difference between circuit breaker and isolator
- What is meant by B, C, D, K and Z curves in MCBs?
- Difference between MCB and RCBO
- Sizing of contactor and overload relay for 3 Phase DOL starter
- Contactor – Construction, Operation, Application and Selection
- Difference between MPCB and MCCB
- Difference between RCCB and RCBO
- What is there inside and MCCB?
- Difference between MCCB and RCCB
- What is the difference between MCB and MCCB?
- Difference between contactors and relays
- Why are potential transformers used in power system?
- Why are current transformers used in power system?
- What are the basic requirements of a protection system used in a power network or equipment?
- What are the essential components of a protective relay?
- What are the main functions of a protection relay?
- What is a protection relay?
- How rating of a circuit breaker for a system is determined?
- What is Buchholz relay? Why is it used?
- Category: Q&A
- Category: Tools
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