low voltage grounding is done by??
1)solidly gnd
2)ressistance
3)reactance
ARE YOU NOURVAS ?
what happens when you connect a.c and d.c supplies
12.5 tons a/c is their how much kva generator can recommend to the customer.
i have seen a picture of a power plant. in that pic. i saw chimney like giant structure which were spreading smoke like something...i want to know is it chimney or cooling towers, as my friends use to say.
EXPLAIN THE ESSENTIAL FACTORS WHICH INFLUENCES THE CHOICE OF SITE FOR A HYDRO ELECTRIC POWER PLANT
why in large rating C.T.s equipotential wires are used?
New istallation how many eathing have one transformer? Names of earthing connect places?
Explain how you intend to work under pressure to meet up with deadline target?
A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
what is an rmu?its circuit diagram.functions
14 Answers CP Bangladesh, Emrill, NDPL,
Why not connect relay Y phase for over current and earth fault
what is high pot test on 11kv switchgear and how to apply high voltage on panel what is spheare gap and how to determine its celeberation.