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Question 1.The three bus-bar conductors in an outdoor substation are supported by units of post type insulators. Each unit consists of a stack of 3 pin type insulators fixed one on the top of the other. The voltage across the lowest insulator is 13.1 kV and that across the next unit is 11 kV Find the bus-bar voltage of the station.
Question 2.An insulator string consists of three units, each having a safe working voltage of 15 kV The ratio of self-capacitance to shunt capacitance of each unit is 8 : 1. Find the maximum safe working voltage of the string. Also find the string efficiency.
Question 3.Each conductor of a 3-phase high-voltage transmission line is suspended by a string of 4 suspension type disc insulators. If the potential difference across the second unitfrom top is 13.2 kV and across the third from top is 18 kg determine the voltage between conductors.
Question 4.The three bus-bar conductors in an outdoor substation are supported by units of post type insulators. Each unit consists of a stack of 3 pin type insulators fixed one on the top of the other. The voltage across the lowest insulator is 13.1 kV and that across the next unit is 11 kV Find the bus-bar voltage of the station.
Question 5.An insulator string consists of three units, each having a safe working voltage of 15 kV The ratio of self-capacitance to shunt capacitance of each unit is 8 : 1. Find the maximum safe working voltage of the string. Also find the string efficiency.
A matrix is basically a 2-dimensional array. Given an int matrix with m rows and n columns, write a function called display to print it in the matrix format. Write a complete program to test your function.
1. Provide 3 ways for creating proto-types of an electronic circuit. 2. Explain briefly, in outline form, and in your own words, the procedure for creating a single-sided, PCB (Printed Circuit Board), using the etching procedure.
imagine you are advising a company that owns a large database and has customers distributed across the usa. the
A capacitor of value C=10 uF(microfarads: where 1 uF=10^-6 F) has a voltage of 2 volts across it. Calculate the amount of charge Q,in coulombs,on each plate.
A small/thin circular conducting disk that can carry total current, as represented by 'I'. The current path is circular at every distance from the center of the disk, and the each circle center is the disk center.
If the mechanical power sent out from the machine is 100 kW at a rotating speed of 90% of the nominal speed. Compute the slip of the machine and find the power dissipation due to the rotor winding resistance.
The signal x(t) consists of sum of two components, x1(t) and x2(t). The signal x(t) is bandlimited to 40 kHz, and it is sampled at a rate of 100 Khz to yield the sequence x(n). It is desired to suppress the signal x2(t) by passing the sequence x(n) t..
discuss some of the advantages of plcs over relay logic circuits. how do we decide to use either a plc or a relay
a positive-sequence shunt admittance y= j4.4* 10-6 S/km. for this line if it has 70% shunt reactive (inductors) compensation and 40% series capacitive compensation. Half of this compensation is installed at each end of the line.
[1] If the speed of a DC machine is doubled and the flux remains constant, the generated e.m.f. (a) remains the same (b) is doubled
calculate the total power received at rx if the power being transmitted is 20w the distance for transmission is 5km
If the semiconductor depicted in the graph below is germanium at room temperature, what is the value of n (the density of electrons in the conduction band) at x=L
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