how can u say about the line by looking at the tower ?
{voltage rating of the line}
Answer Posted / jayakumar
each type of insulator designed for some standared voltage
value. Thus the voltage rating of the line depends on
insulator type and the number of insulators.
Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?
What does a Bode plot tell you?
area control error
What does the kvar means?
i want some interview related questions with their answers which can help for attend the interviews...
What is mason's gain formula?
1. A 380 / 220 V r.m.s. 3-phase 4-wire circuit carries loads of 8 + j8.1 ohm; 4 + j4.1 ohm; and 2 +j2.1 ohmin the three phases respectively. The length of the circuit is 100 m, and the resistivity of the phase conductors is 0.0005 Ω/m. The neutral conductor is of the same size as the phase conductors. a) Select a reference angle 0for the first phase. Then write down the three phase voltages in both polar format and complex number format. b) Make appropriate assumptions, and take temperature effects on resistance is insignificant. Calculate the currents in the three phases. (Note: Determine conductor resistance, and apply Kirchhoff’s Voltage Law) Based on the result, suggest a main switch rating for the circuit. c) Show your preferred direction of neutral current in a diagram, and then determine its value. (Note: Apply superposition principle, and Kirchhoff’s Current Law) Use its magnitude to show that in this circuit, the unbalanced load may increase the voltage drop in some of the phases. (Note: Also observe the common volt drip in neutral) State your assumptions, if there are any. d) Suddenly the neutral wire of the circuit is broken. Estimate the new currents in the first phase, i.e. Phase L1. State your assumptions, if there are any.
how is calculated the quantity of weight in hot test xlpe?
how maney type tempereture measurement ?
why all the feeders are designed in a particular manner ... is there any reason for that???
In constant power region of 3-phase IM torque-speed characteristics, if frequency increases flux A does not alter B decreases C increases D none of above
what is model question rrb junior engineer electrical gr.II
What is the difference between UPS & inverter ? which UPS is better and whos got the edge ? what is the difference between & inverter ? which UPS is better and whos got the edge 12 V , 24 V , 36 V etc what are the advantages of 12 V, 24 V , 36 V etc and what are the disadvantages of 12 V, 24 V, 36 V etc thanks
How to calculate mf when meter equipment and meter are connected
circuit diagram of trip circuit supervision relay