what happens when we give supply to the secondary of a transformer ?? for example 415v(pri)/110v(sec)2 3882
what is mean by tan-delta tap in the potential transformer??2 4434
which generator is called as brushless excitation generator and why??3 6880
difference bteween neutral grounding resistor and neutral grounding transformer??1 3602
what is the difference between delta-delta, delta-star transformer???3 16107
how to calculate the earth mat design in 132 kv substation yard ????5257
how much distance is required for earth pit to earth pit in substation???3 8731
how to estimate the breaker capacity of breaker,please give the one example( 6.6 kv breaker,800a)?????2 3617
How to calculate the current of Highpressure Mercury Vapour Lamp?what is the basis?whether we have to consider power factor or not?1190
why we use stones or rock pieces in transformer area?10 25685
how to calculate restraing current and operating current for differential protection if 20 mva transformer is OLTC 33 kv/11 kv ? and what should be the type and ratio of CT?2 4067
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Explain thin film resistors and wire-wound resistors
what is fault level of power system ?
can I improve the furnace power factor (10 mva transformer) by adding a capacitor bank before the transformer.Does system power factor vary a lot with the furnace PF?
what is mean by NPS (Negative phase sequence)fault? what is the difference between EFR & OCR faults?
Can you explain about Restricited earth fault protection scheme
for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?
how i chosse capacitor bank if my energy meter is 48 kvr? tell me capacitor bank chossen formula?
Is there a diode made that works with AC 120 volt 20 amp? If so can it completely stop all current flow in 1 direction at all times?
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
Why field rheostat is kept in minimum position while armature rheostat at maximum position?
I FINISHED MY B.TECH IN EEE . I AM IN NEED OF A GOOD TRAINING INSTITUTE TO DO COURSES .. CAN ANYONE SUGGEST GOOD CENTRES IN TAMILNADU ,BANGALORE ,OTHER AREAS???????
How to calculate capacitor bank size at a load 800kVA.
In siemens PLC, why do we want to move the data ?
While converting delta into star or star into delta ,the three values of resistances remains unchanged .Find out the value?Let In star R1=x;r2=x;R3=x On converting into delta,R12=x;R23=x;R31=x Find the value of x