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Answer Posted / shahbaz shaikh
when current flows through the conductor the current density is high at the outer surface of the conductor and zero at the center this high current density at the surface of the conductor is known as skin effect.
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sir plz send some previous year questions of jspl.
WHAT IS THE TOTAL POWER GENERATION IN CHHATTISGARH?
What is safety of Ht panel
1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is
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i want use the cable size 16cx4 core aluminium usege watts 240x2000w this cable size is correct?
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In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.
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.
What are the components connected in between the power supply coming from an electric pole to HT & LT Panels in a large commercial building or how the power supply connected from Electric pole to Transformer & then to the HT & LT panels of a building? Please send me answers via mail, my id is yogiagarwal@gmail.com. If possible, please give a line diagram.
EXPLAIN WHY THE SURGE CURRENT RATING OF AN MCCB OR CIRCUIT BREAKER DECREASES WITH INCREASE IN THE RATING OF MCCB OR CIRCUIT BREAKER.
how to build a network which step down 415v to 1v rms
DG Earth Value?
for opening electrical shop, tips needed.
