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the site measured knee point voltage of protection class CTs should be greater than rated knee point voltage? what about meetering class CTs. Should it be below the rated knee point voltage?
2152transformer spections :: input voltage 0-110-230v; output volage 0-10-12-14v; amp=3A using CRNO CORE, capcaity=50VA primary turns = ? ; secondry turns =?
Bhel,
20481. transformer design formula ? 2. how to calculate the primary turns and secondry turns ? 3. core types ? 4. how to find the primary current and secondry current ? 5. how to calculate the stacking factor ? 6. range of fulx density ?
2 11065I HAVE A 1 MVA TRANSFORMER, I WANT TO KNOW THE FAULT LEVEL OF THE SYSTEM ( WHAT IS FAULT LEVEL PLEASE EXPLAIN WITH EXAMPLE)
5 23777i need the details about bhel exam.how to apply for that.please send to my email-id.thenmozhi2k7@gmail.com
1974what is the purpose of vector group in a transformer ? if 2 tranaformers r connected in parallel the vector group is same or not? for parallel operation 2 transformers of different manufacturers maintain same vector group or not?
3 14028Post New Electrical Engineering Questions
Maintenance of transformer???
is there any role of power factor with frequency variation? and how we can manage the frequency variation?
what is the best method of grounding in 30 MW generator?
Can any one know what are the symbols at the down (below) the analog ammeter??? there are 4 symbols which are they ?????
What are conduct on the testing in cf in ur site?
Draw the circuit of clapp oscillator?
from where the self excitrd induction generator get the power?why is the voltage regulation is poor of seig?
if the number of poles generated in stator and rotor side of an induction motor are different then what will happen and why?
can anyone give an idea about dia calculation in cold rolling mill
do any one help me to get "C" license,, i have doubts ,,, if mediators ter pls call me,, my no is 8056640042
We need to current density & short circuit calculation at 65kA for aluminium & copper busbar.
How they LT panel busbar size choose
how much excitation voltage required to generate 1mw power?
An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The slip when motor stalls is A 1 B 0 C 13.33% D 10.33%
Dear sir, my knowledge about cable size determination is limited. Though I read examples I could not calculate the Cable size required for electric driven pump 40 KW, 380 Volt, 50 HZ, 50 meter from transformer and it is three phase star delta starting. Please help as there is no one in my surroundings to help.
