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Why DC Does Not Have Power Factor ?

Why DC Does Not Have Power factor: In AC Power system power factor plays major role while using AC loads. Here power factor is nothing...

Relationship of Frequency Vs KVA Output or Rating of Transformer

Relationship of Frequency Vs KVA output or Rating of the transformer. When we purchase a transformer it is always marked in that name plate is...
Lighting Transformer circuit diagram

Why Lighting Transformer Used for Lighting Loads

Why lighting transformer Used for lighting loads? Lighting transformer is nothing but a 1:1 transformer or step down transformer with step reduction of appx. 0...
AWS CWI Part A tricky questions Ver...
AWS CWI Part A tricky questions Very important for the exam
LC Circuit

Why Capacitor and Inductor are used in Filtering Circuit

Why capacitor and Inductor are used in Filtering Circuit? In Electrical and electronics circuits the three passive components (Resistor, Capacitor, and Inductor) are playing major...
VFD IGBT

How VFD Saves Power & Basic Concept of VFD

How VFD Saves Power & Basic Concept of VFD: VFD is nothing but a variable frequency drive, sometime it is called as VVFD (Variable Voltage...

What happens if DC supply given to the Inductor

What happens if DC supply given to the inductor:   Consider I is the current flow through an inductor circuit is DC, then the voltage V...

Why India has 50 Hz Power System and US has 60 Hz 110 Volts...

Why India has 50 Hz Power system and the US has 60 Hz 110 Volts power system. India supplies 50 Hz, 230 Volts, Alternating Current...

Why DC Voltage is preferred for Control circuit? 

Why DC Voltage is preferred for Control circuit?  Advantage Disadvantage: In industry mostly 110 VDC uses to control all important circuit. Example Protection system, Process...