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Answer Posted / abo
IS THE BRANCH OF ENGINEERING THAT DEAL WITH FLOW OF CURRENTS
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Is there any specialised book to refer about fault level calculation both in MV and LV side??
how to check avr of dg set of 125kva
how to measure dc earth leakage current?
How to calculate energy stored in an inductance?
What are the advantages of the three-phase motor over single phase motor?
y we use neutral,all r told its used to for closed path..k its a just used to closed path,in a transmission line y we put same conductor used n both phase and neutral..if we use less than phase conductor in neutral mean we ll reduce cost its right r wrong..if we use mean any problem occur in transmission line..
What do you mean by a current transformer?
What is a difference between indoor transformer and outdoor transformer of same rating
could you measure current in parallel?
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.
in conventional fan regulators how the current varies with speed?
what is the working principle of a DG Set, Alternator, & exiter
excitation limit of an excitor
is this the formula of building wiring to get the main breaker.Watts/volts*.8%+higher motor*(25%)=ampere. yes or no or send the correct formula for building wiring.
Please clarify, 1. Is it required to lay two runs of GI wire along with Armoured LT cable if it is laid between one big mains (63Amps TPN SDF) to small main (32A TPN SDF) with proper glanding termination? 2. If the armoured cable with proper glanding is laid from DB to CNC machine, is it required to run two runs of body earthing to the Machine from DB? 3.If the armoured cable with proper glanding is laid from Substation to Hangar, distance is approx. 100 mtrs, is it required to do earthing at shop area though the primary termination at substation is earthed through gland.
