Answer Posted / satyabrata mahapatra
If we put 40 amps ELCB it can't trip within a shorter
momment & rate of flow of current increase beyond the human
body resistance capacity.
| Is This Answer Correct ? | 4 Yes | 6 No |
Post New Answer View All Answers
When distance between two pulleys is not fixed, the tension of belt is adjusted by a) driver shaft b) driven shaft c) adjustment screw d) belt
Define ampere
how many parameters can integrate with fire alarm basically ?
draw singleline diagram of star to delta and dol starters
is there any lightning by passer is arranged in ship like buildings?
What do you mean by a current transformer?
how to calculate slip ring induction motor stator and rotor currents??
1.What is captive power plant? 2.What is national grid?Give brief idea.
what does a k rating in a transformer means?
what causes contact chatter when there is no demand on the air conditioning unit?
My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I - is the value of AC fault current. t - is the operating time of disconnecting device in seconds. K – is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.
we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.
what is droop control?
for 5KW resistive load can anyone please suggest me whether to go for UPS/Inverter or Generator depending upon cost calulations
which protection function should measure RMS value of current&DFT value of current?