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What is auto transformer?
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Answer Posted / james sunter
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WHAT ARE THE DISADTAGES OF SINGLE-WIRE-EARTH-RETURN SYSTEM USED FOR RURAL ELECTRIFICATION?
Why do we apply both Differential and REF (HV and LV) protection schemes on YNyn configuration of a transformer?
explain the types of drives
what is the formula for calculating the phase clerance between two phases and phase to earth how to calculate the cable for a motor
I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?
Why open circuit test of transformers is conducted at rated voltage??Why not any other voltage??
if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)
why Current is lead 90 degree and voltage is lag 90 degree in a capacitor.? why Current is lag 90 degree and voltage is lead 90 degree in an inductor.?
How 48-relay (incomplete sequence) functions?
What are the causes for the failures of sandwich type (Al) busducts?
State and define norton’s theorem?
As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.
Sir 33kva 2 transformer load 900 amp calc 1800 amp mana jayega
what ispositive, negative, zero sequence impedence?
what is the working process of over & under voltage relay.
