last week we did the REF relay test by closing single pole
(R phase) of CB and apply 380V at the primary of delta
transformer. we get 33A at the primary of the R phase star
end. but we get 380A at both R an B in delta side. how and why?
Why the brushes used in dc machines are made of carbon not from other metal?
if the number of poles generated in stator and rotor side of an induction motor are different then what will happen and why?
what is diff. b/w of earth & neutral?. why we are separately using ?
Thumb rule for capacitor bank calculation
how is the magnetic current test is different in delta-star and delta delta transformer.
what is mean by transition resistance of transformer?
Generator,motor and alternator Working principal Please explain easily
What is power relay?
Double Busbar Scheme for outdoor switch yard system (132kv) step up power plant Hi friends 1. in this system both busbars energized all the time. 2. what is the meaning of main BB and transfer BB, 3. step up transformer connect main bus bar all the time or both BB connected through DS switch . 4.bus sectionalization means ? thank you.
How I calculate the ELCB for circuit breakers?
As we know that during saturation test of CT from secondary side, the current in secondary shoots up after core saturation. How core saturation effects the secondary current?
Benifits of 3ph 4 wire metering over 3ph 3 wire
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