A transmission line connecting Ibra and Sur carries 33kV and 300OA. The substation concerned is installed with a setup of PT and a small range Voltmeter of (0-300V) to measure the voltage. Then, the number of turns on both primary and secondary windings of PT are calculated as, a. 110, 1 turns b. 1, 110 turns c. 110, 50 turns d. 50, 110 turns

A transmission line connecting Ibra and Sur carries 33kV and 300OA. The substation concerned is installed with a setup of PT and a small range Voltmeter of (0-300V) to measure the voltage. Then, the number of turns on both primary and secondary windings of PT are calculated as, a. 110, 1 turns b. 1, 110 turns c. 110, 50 turns d. 50, 110 turns

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.60P: PowerWorid Simulator case Problem 3_60 duplicates Example 3.13 except that a resistance term of 0.06...

See similar textbooks

Similar questions

A high-voltage direct-current (dc) transmission line between Celilo,Oregon, and Sylmar, California, is operating at 800 kV and carrying1800 A, as shown. Calculate the power (in megawatts) at the Oregonend of the line and state the direction of power flow.
Given a 400sq.m single family dwelling unit to be provided with 230V, 1-phase, 2-wire service, and having the following loads: 2-1.5hp A/C, 2-1.0hp A/C, 1-0.5hp water pump, 4-800W water heater, 2-6kW electric range and 2-1kW microwave oven, determine the rating of feeder overcurrent protection in ampere-trip (AT) using inverse time circuit breaker. Write your answer in numerical format without decimal places.
A power transmission line of 33kV (maximum) carries a maximum current of 1200A is connecting the two areas. A PMMC voltmeter of (0-600V) range and a PMMC ammeter of (0-25A) range are to be used for measurement of voltage and currents of the transmission line. 1.Design and draw a circuit with suitable instrument transformers for the measurement. Use sample values for winding turns. 2.On a particular day, the readings shown by the meters were 17.5A and 440V. Calculate the actual voltage and current in the transmission line.
The single line diagram of a power system is shown below. Load represented as impedance, (13.2) kV voltage It draws 60 MVA power from the system when it is below and (0.9) back power factor. Generators and transformers The related electrical parameters are given below. According to this; a) Calculate all impedances in this given circuit in pu and draw the equivalent impedance diagram of the circuit. (Select the base values as 100 MVA and 13.8 kV.) b) Since the voltage values of the generators are given as E1=1.1∟0° pu and E2=1.25∟10° pu, Calculate the value of the voltage (V1).
The VSWR on an 50-Ohm transmission line is 5. The distance between successive voltageminima is 80 cm while the distance from the load to the first minimum is 30 cm. What are thereflection coefficient and load impedance
The figure below shows a radial transmission system with a generator having a terminalvoltage of 95 KV at angle of10.5°. The load demand is 50 MW at a power factor of 0.88 lagging.Use a base of 128.4MVA . Instructions :round of to 2 decimal places. Calculate the following : 1.Load current (A) and Base current (A) 2Per unit impedance of transformer 2 and Per unit impedance of transformer 1.3.Per unit voltage of the generator. And Per unit voltage of the line. 4.Per unit voltage of the transformer 1 5.Per unit impedance of the line.6.Resistance of the transmission line when the load consumes full-load (Ω).
Draw (132 KV) Overhead Transmission Tower with all engineering details.
A transmission line of 50 ohm characteristic impedance is terminated with a load of 200 ohm resistance. What will be the value of the minimum impedance measured on the line?
Given the two-machine system of Figure below, we select quite arbitrarily a base voltage of 161 kV for the transmission line and a base voltampere of 20 MVA. Find the pu impedances of all componenrs referred to these bases. The apparatus has ratings as follows: Generator: 15 MVA, 13.8 kV, x=0.15 pu Motor: 10 MVA, 13.2 kV, x=0.15 pu T1: 25 MVA, 13.2-161 kV, x=0.10 pu T2: 15 MVA, 13.8-161 kV, x=0.10 pu Load: 4 MVA at 0.8 pf lag
• Zh = 100 ohm • Draw the pu reactance diagram by taking Ut(base) = 132kV, St(base) = 100MVA. If the 33 kV busbar voltage is kept constant at 30 kV and 0.8 inductive 50 MVA power is drawn from this bus, what is the voltage at the synchronous machine ends?
A short 3-phase transmission line connected to a 33kV, 50 Hz generatingstation at the sending end is required to supply a load of 10 MW at 0·8lagging power factor at 30 kV at the receiving end. If the minimumtransmission efficiency is to be limited to 96%, estimate the per phasevalue of resistance and inductance of the line.
Q4 / Equipment ratings for the four - bus power system shown in Figure are given as follows: TI 73 60 500 Generator GI: 500 MVA, 13.8 KV. X = X2 = 0.20. Xo = 0.10 per unit Generator G2: 750 MVA, 18 KV.X = X2 = 0.18, Xo = 0,09 per unit Generator G3: 1000 MVA, 20 kV, X = 0.17. Xz = 0.20.Xo = 0.09 per unit Transformer Ti: 500 MVA, 13.8 kV A / S00 kV Y. X = 0.12 per unit Transformer T2: 750 MVA, 18 LV A / 500 kV Y, X = 0.10 per unit Transformer T3: 1000 MVA, 20 kV A / 500 kV Y. X = 0.10 per unit each line: X = 50 ohms, X, = 150 ohms 77 The inductor connected to generator G3 neutral has a reactance of 0.028 pu. Draw the zero-, positive-, and negative - sequence reactance diagrams using a 1000 - MVA, 20 - KV base in the zone of generator G3