Safety point while work in Electrical substation
DO’s to Achieve Safety While Working in Substation Work on low & medium voltage mains and apparatus should be carried […]
Electrical Substation
Basic Electrical
Types of Railway Track Electrification
Types of Railway Track Electrification The three main types of electric traction systems that exist are as follows: Direct Current
Basic Electrical
What is Tariff and Types of Tariff . Suitable Tariff for Consumer
What is Tariff? Tariff is the way of billing energy consume by consumer OR the rate at which electrical energy
Electrical Machine
Hunting in Synchronous Motor and Cause of Hunting
What is Hunting in Synchronous Motor? The phenomenon of oscillation of the rotor of a synchronous motor about its final
Transmission Line
Auto Reclose Protection in EHV Transmission Line
Auto-reclosing on EHV Transmission Networks The most important consideration in the application of auto-reclose to EHV transmission lines is the
Transmission Line
What is Power Swing. Their effect on distance relay and detection method
What is Power Swing? Power Swing which is basically caused by the large disturbances in the power system which if
Transmission Line
Zone Protection setting of Transmission Line
Zone protection Generally zones Z1, Z2, Z3 are taken as forward direction and Z4 is taken as reverse direction with
Transmission Line
What is Distance Protection in Transmission line
What is Distance Protection? A distance protection element measures the quotient impedance (V/I), considering the phase angle between the voltage
Electrical Substation
Capacitor Bank Unbalance Protection system
Introduction The protection of shunt capacitor banks against internal faults involves several protective devices/ elements in a coordinated scheme. Typically,
Renewable Energy
What are the common problem with Solar power system and troubleshooting
Introduction The number of solar power installations around the country is growing faster each year, creating an ever-increasing demand for
Renewable Energy
What is Solar Inverter and Types of Solar Inverter
What is Solar Inverter? It’s an electric device used to convert direct current (DC) electricity to alternating current (AC) electricity.
Transformer
Dry type Transformer failure reasons and troubleshooting
Dry-type transformers are a part of most electrical installations. They range in size from small doorbell transformers to three-phase 25-kVA
Electrical Appliance
Fluorescent Lamp: Construction, Working and Advantages, Disadvantages
Construction of Fluorescent Lamp Edmund Germer’s invented Fluorescent lamp and it is a hot cathode low-pressure mercury vapor lamp. It
Electrical Machine
4-point starter method for DC Motor
4-point starter The functional characteristics of a 4-point starter are similar to a 3 point starter. 4-point starter works as
Electrical Machine
3-point starter method of DC Motor
What is Three-point starter A 3-point starter is an electrical device, used for starting as well as maintaining the DC
Basic Electrical
Faraday’s Laws of Electrolysis and Electroplating process
Faraday’s First Law Faraday’s First Law states, during electrolysis process , the amount of chemical reaction take place at electrode
Basic Electrical
Primary Cell and Secondary cell
What is Primary Cell? Primary cells cannot be recharged, that is, the conversion of chemical energy to electrical energy is
Transformer
What is Eddy Current and Eddy Current loss
What is Eddy Current? If a coil is wound on a ferromagnetic core (such as in a transformer) and alternating
Electrical Substation
Unbalance Protection Methods for Ungrounded Wye Capacitor Bank
Unbalance Protection for Ungrounded Single Wye Banks The simplest method to detect unbalance in single ungrounded Wye capacitor banks is
Electrical Substation
Capacitor Bank Design
Introduction The protection of shunt capacitor banks requires understanding the basics of capacitor bank design and capacitor unit connections. Shunt
Electrical Substation
Shunt Capacitor Bank Unit and Bank configuration
Capacitor Unit The capacitor unit, Fig-A, is the building block of a shunt capacitor bank. The capacitor unit is made
Electrical Machine
Cause of Malfunction in AC machine and Practical solution
Cause of Malfunction in AC machine and Practical solution Overheating of the stator winding of a synchronous machine Cause of
Electrical Machine
Auto synchronous motor or Synchronous Induction Motor
A normal synchronous motor rotor having a damper winding arranged such like slip ring IM. On applying 3-phase supply to
Electrical Machine
Generator working Principle and How to generator work
Generator Working Principle Electromagnetic Induction in Generator Electromagnetic induction, the basic principle of generator operation, involves the movement of an
Transmission Line
XLPE cable: Construction, Voltage rating, Advantage
Introduction Cross linked polyethylene (XLPE) insulated single core and multicore cables are manufactured with colours of cores red, yellow, blue
Electrical Substation
Waveform Distortion: DC offset, Harmonics, Notching, Noise
What is Waveform Distortion? Waveform distortion is defined as a steady-state deviation from an ideal sine wave of power frequency
Electrical Substation
What is Voltage Sag and Swell in Power quality
What is Sag (dips) in Power quality? A sag is a decrease to between 0.1 and 0.9 pu in rms
Electrical Machine
Synchronous motor: Definition, Work, Industrial Application and Comparison
What is Synchronous Motor? Synchronous motors are synchronous machines used to convert electric power to mechanical power. Synchronous motors can
Interview
Basic Electrical Interview question
1.What is static electricity? Static electricity means electricity at rest. If we join a charged conductor to another conductor, electricity
Electrical Machine
What is Stepper Motor and their 3 types and Application
What is Stepper Motors? Stepper motor is known by its important property to convert a train of input pulses i.e.,