Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / sakthivel
in our electrical system no of fault available there are
1,open circuits 2,short circuits 3,loose connections 4,earth
faults if any fault depends on voltage and full load current
and insulation cable so that is not idea,
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
how dia of wire and angles are calculated for overhead shielding wire to protect substation equipment from lightening strokes???
For the requirement of a furnace of temperature range up to 1200 oC using silicon carbide rods, What is the required rate of transformer needed (please do it with all details)?
Why 9KV surge arrester having 7.65KV of MCOV?
how to revers the direction of single phase motor
Give the expression for the frequency of oscillations in an op-amp sine wave oscillator?
what is the transformer rush current?
what is vtg limit of earth and neutral at transformer side?
which protection function should measure RMS value of current&DFT value of current?
How to calculate the input cable rating for 10kva ups (3phase input and single phase output and also 3phase output, battery rating 65Ah)provide the formula also.thnx
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 happen as when voltage drop(or may decrease) ? in case of atomic base theory?
what is the mechanism of operation of brushless dc motor why is it more wexpensive then ordinary permanent magnet motors
1)what is the function of a frequency inverter? 2)If a few frequency inverter are connected onto a device network,what are the two setting that will ensure the frequency inverter work properly on the network. 3)whats is the name of the input sensor for weigher? 4)How to confirm that the load cellis faulty? 5)Describe briefly the steps to validate that the weigher is working properly? 6)Describe the procedure to validate the flowmeter accuracy? 7)Describe briefly the steps to validate that the tempreture sensor/transformer is working properly. 8)what is the adjustment that need to be done when you are calibrating the temperature transmitter ? 9)what are the safety measures to be taken before disconnecting motor for rewinding. 10)whats is the synchronous speed in rpm of typical 4pole 50hz motor? 11)whats is the formula for kw, ohm's law 12)if a 3phase motor is rated 3kw,415vac,what is it's rated ampere?
What is the effect of pi controller on the system performance?
What is difference between Sample test and Routine test in safety standard?
