How many methods to take IR value of Current Transformer?1 4261
why autotransformers are not safe for supplying low voltage from a high voltage source?5 9230
Explain the experiment on ward leonard method of a speed control on a dc shunt motor with an suitable circuit diagram.1713
what current is taken from a double wound 500kva transformer4 4267
what is the differn bitween RCCB &MCB3 5571
what is b checks and m checks in diesel generator maintenance?1 1674
how caculate the pump head to maintain perticuler pressure of water and what would be the motor size in hp for the same?1 2741
what should be the megger test report for 11KV cable when meggered with 5KV megger , what is the resistance value we should get7 12565
how we can calculate power factor without knowing current in 230v 100w load ?10 14493
WHAT IS RETARDATION TEST IN DC MACHINES?4 20406
What is the List of Equipments, Instruments, Components required in Transmission of electricity from 1 substation to other substation(The equipments required in substation too)? What are the differnt IS standrds used for above equipments in Industry?2 8798
What is the pratically meaning of neagative going ac current.1 2658
Why a transformer is rated in kVA and not in kW??9 10057
my self i am raghu working as tech.. in my college the maximum demand is 211 kva presently we are using 12kva capacitors the target power factor is .95 so what capacity of capacitor banks should i install2 3445
HOW MANY TYPES OF FUSE?
how will we calculate the copper wire load..
what is the difference between "Rotary bypass isolation switch and Normal bypass switch" pls share indepth techs?
i want to learn control schedule for 11kv panel? can any one send the detailed control schedule?
What are the types of class b amplifier?
WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING
what are the standard IR values should be of R-E, Y-E, B-E, R-Y, Y-B, B-R of VCB in closed condition and in open condition for 500KVA & 1000KVA transformers. and what is the acceptable range when tested by 5000V megger.
What is the relationship between voltage,current & frequency?
sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.
What is the difference between Static and servo controlled voltage stablizer?
What do you mean by phasors?
What is corkscrew rule?
how to electronic energy metter failed in electomagnectic fild passing in the metter and which thing to defect more on metter.
I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?