A neon sign requires 12.5 kV for its operation. A transformer is used to raise the voltage from the line voltage of 220 V (rms) AC to 12.5 kV (rms) AC. (a) Find the transformer's ratio of secondary to primary turns. (b) If the fuse in the transformer's primary winding blows at 0.65 A (rms), what is the maximum rms current, in milliamperes, that the neon sign can draw, assuming no power loss in the transformer? (c) How much power, in watts, does the neon sign consume when it draws the maximum current the fuse allows?

A neon sign requires 12.5 kV for its operation. A transformer is used to raise the voltage from the line voltage of 220 V (rms) AC to 12.5 kV (rms) AC. (a) Find the transformer's ratio of secondary to primary turns. (b) If the fuse in the transformer's primary winding blows at 0.65 A (rms), what is the maximum rms current, in milliamperes, that the neon sign can draw, assuming no power loss in the transformer? (c) How much power, in watts, does the neon sign consume when it draws the maximum current the fuse allows?

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 3.10P: A single-phase step-down transformer is rated 13MVA,66kV/11.5kV. With the 11.5 kV winding...

See similar textbooks

Similar questions

All values of a transformer are proportional to its __________________ ___________________.
A single-phase step-down transformer is rated 13MVA,66kV/11.5kV. With the 11.5 kV winding short-circuited, rated current flows when the voltage applied to the primary is 5.5 kV. The power input is read as 100 kW. Determine Req1andXeq1 in ohms referred to the high-voltage winding.
How do i calculate secondary current in transformer analysis
10. Determine the peak-to-peak ripple and de output voltages in Figure 5. The transformer has a 36 V rms secondary voltage rating, and the line voltage has a frequency of 60 Hz. A R surge 120 Vrms 00000 ellle B Figure 5. www 10 Ω C 100 μF www R₂ 3.3 ΚΩ
For the given circuit below, a step down transformer gives an RMS voltage of 230 V/ 13.7- 0-13.7 V with a load resistance of 2.2 Kiloohms. Assume Silicon diodes are used. Determine the Peak Inverse Voltage of the diode. D. ст R 38.74 O 19.38 O 24.57 O 30.23 leeee
мCQ 12 An ideal step-down transformer has 200 primary turns and 50 secondary turns. If 440 volts (rms) is = l10 Brms (A) (B) (C) D) (E) 3.6 A (rms) 7.3 A (rms) 11.4 A (rms) 15.7 A (rms) 12.4 A (rms) I=N
A 200 V/100 V, 50 Hz transformer is to be excited at 40 Hz from 100 V side. For the exciting current to be same, the applied voltage should be ?
Help me to solve the average current, peak current, transformer
Determine Rz for a 12 V Zener regulator is used with a dc input of 20 V, a load current of 65 mA, and a Zener current of 20 mA. Rz DC Input Zener R diode 91.4 ohms O 14.9 ohms 49.1 ohms O 94.1 ohms
In this Center tapped transformer Find the peak voltage of V1 and V2, RMS voltage of V1 and V2, and Peak to peak voltage of V1 and V2
For figure (1)draw and calculate the voltages waveform across each half of secondary winding and across load when 100sin2π60t applied across the primary, then find PIV.
In a load test on transformer the no load voltage is 240V. The terminal voltage drop is 225V on resistive load condition. The primary voltage of transformer is 350V. The primary and secondary currents are 0.45A and 0.671A. What is the efficiency of the transformer? O a. 68% O b. 95.85% O c. 64% O d. 43.19%