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On Delay Timer | Off Delay Timer Working Principle

On Delay Timer and off Delay Timer: Generally, timers are used to control the circuit for certain amount of time. Using timers we can delay...

Electrical Standards For Contactors AC1, AC2, AC3, AC4, DC1, DC2 DC3

Electrical Standards For Contactors AC1, AC2, AC3, AC4, DC1, DC2 DC3 The duty of electrical contractor is categorized by the types of electrical loads used...
Non- Conventional Energy sources

Source of Electrical Energy

Source of Electrical Energy: It the world electrical energy will be taken from two kind of sources. One is conventional sources and another one is...

What is Crawling of Induction Motor Definition & Simple Explanation

What is Crawling of Induction Motor: As you know fifth harmonic (5*fundamental frequency) has negative sequence current hence it creates negative field and which opposite...

What is Percentage Impedance & Calculate Percentage Impedance?

What is Percentage Impedance & Calculate Percentage Impedance? "The percentage impedance is nothing but a measure of the volt drops when the transformer in on...

Harmonic In Electrical | How Electrical Harmonics Occurs in Power system

What is Harmonic in Electrical: Harmonic in electrical is nothing but an integer multiplication of fundamental frequency. Harmonic are an unwanted distorted waveform which frequency...

Vector Sum Three Phase Current

Vector Sum Three Phase Current: Vector sum is nothing but a calculating total current magnitude as well as phasor. i.e. consider three phase current magnitude...

Electrical license Renewal in Tamilnadu Supervisor Contractor & Wireman

Electrical license Renewal in Tamilnadu Supervisor Contractor Workmen: After getting electrical contractor license and electrical supervisor license, both are valid only for four years. Each...
Single phase Motor Capacitor

Why capacitor is required for Single phase motor

Why capacitor is required for Single phase motor: Single phase motors are not a self-starting motor, single phase power supply cannot create rotating magnetic field...
Electrical C license

Electrical Supervisor License in Tamilnadu

Electrical Supervisor License in Tamilnadu: Electrical license is nothing but a government certified authorized person to handle or operate or maintain or repair electrical installation....