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What are the types of Transformer? Name them.
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how current is reverse from its normal direction during the fault?
which phase is preferred for connecting 1 phase vt used for synchronizing OHL? WHY?
Difference between ac parallel circuit and ac series circuit?
how to calculate the formula of cable size if motor kw is given
WE know that for Inductor X=2pifL,In DC f=0,then X=0 so,V=IX=0;But In the DC excitation of rotor of AC generator,DC motor field coil which coils are inductor so why does not applying DC voltage short the rotor coil of AC generator and field coil of motor?If it would then DC source might be damaged but it is not happened. Why does the strand conductor of Electrical power transmission line make twist?
can any one suggest paper presentation topies for electrical engg?
Difference between RCCB, RCBO and ELMCB.
How is the speed of a DC shunt motor related to the armature current?
how to CHECK CT AND PT AT THE FAULT OCCUR IN GENERATOR RELAY PANEL .
Give the topology of current amplifier with current shunt feedback?
PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM
In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes
In Electrical 'Single Line Diagram' cable nomenclature shows "2 X 1C X 630sq.mm to be provided for one incomer. The question is how many cable to be proved for one Incomer.
What is non-minimum phase transfer function?
How to check 11000/1.732 to 110/1.732 Potentila transformer (PT)?
