what is power system.........?1 1280
If a ACB breaker is tripping and closing problem, then what will we check internal..?3 4556
WHY MOSTLY Rph IS USED FOR CONTROL CIRCUITS AUX. SUPPLY ?1583
In DC current-excitation to transformer, why it sucks more current? Eventhough there is no power transfer between primary and secondary? R is very low so it should suck less current only na thn y its current increases?2 3159
why a fan starts rotating in the reverse direction when condenser gets damaged?1 3062
what are earthing material1 2119
what is the minimum insulation resistance for HT AND LT motor ?3 6054
why leading pf indicates a negative sign???1 3129
inductance and capacitance may result in periodic reversals of the direction of energy flow,how???1 1945
For two systems transmitting the same amount of real power, the system with the lower power factor will have higher circulating currents due to energy that returns to the source from energy storage in the load.???
What is the drawback of class b amplifier? How is this minimized?
i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value
Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?
WHAT IS THE TOTAL POWER GENERATION IN CHHATTISGARH?
what is the transmission loss for electrical supply? specifically a large shopping complex where the grid is half KM away, what will the % of transmission loss? is there any transmission loss for captive unit generation for above set? thanks
What is the power factor of an alternator at no load?
If we have 11 kv RYB Phase single core cable near about. Then wht effect and losses
why would amp draw on neutral wire be as much as amp draw on the hot leg.
What is earth system using on the floater TN-S or TT. Iam not sure and what ICCP
wath is this mining of bts
ratings of lightning arrester
is there any chart showing the suitable cable size according to AMP and length ? for three phase motors
What are the different power system losses and how can it be eliminated?
what happen when power factor of 2 parallely operated transformer become equle?
Define phase lag and phase lead?