A linear transformer reflects, Select one: O a. The conjugate of the mutual impedance of the secondary circuit into the primary winding by a scalar multiplier O b. The self impedance of the secondary circuit into the primary winding by a scalar multiplier c. The conjugate of the self impedance of the secondary circuit into the primary winding by a scalar multiplier. d. The conjugate of the self impedance of the primary circuit into the primary winding by a scalar multiplier

A linear transformer reflects, Select one: O a. The conjugate of the mutual impedance of the secondary circuit into the primary winding by a scalar multiplier O b. The self impedance of the secondary circuit into the primary winding by a scalar multiplier c. The conjugate of the self impedance of the secondary circuit into the primary winding by a scalar multiplier. d. The conjugate of the self impedance of the primary circuit into the primary winding by a scalar multiplier

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 3.1P: (a) An ideal single-phase two-winding transformer with turns ratio at=N1/N2 is connected with a...

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The voltage from the source is stepped up by the first ideal transformer and then stepped down by the second ideal transformer before the load is delivered. The impedance at the middle is Zm=40+j30 ohms and sees some voltage source at its left side and some impedance on the right side. The load is known to consume 1.2kW and 300Vars as shown in the first figure. Use the current accross the impedance at the middle as the reference phasor where Im=4∠0° A. Calculate the value of the equivalent source voltage and the original source seen by Zm. What is the magnitude of the current in the original source?
The voltage from the source is stepped up by the first ideal transformer and then stepped down by the second ideal transformer before the load is delivered. The impedance at the middle is Zm=40+j30 ohms and sees some voltage source at its left side and some impedance on the right side. The load is known to consume 1.2kW and 300Vars as shown in the first figure. Use the current accross the impedance at the middle as the reference phasor where Im=4∠0° A. Give the value of the equivalent load impedance and the original load inpedance seen by Zm?
The voltage from the source is stepped up by the first ideal transformer and then stepped down by the second ideal transformer before the load is delivered. The impedance at the middle is Zm=40+j30 ohms and sees some voltage source at its left side and some impedance on the right side. The load is known to consume 1.2kW and 300Vars as shown in the first figure. Use the current accross the impedance at the middle as the reference phasor where Im=4∠0° A. If there were no transformers used, i.e. Vs is directly connected to Zm and ZL, what will be the real power and reactive power drawn from the source respectively?
The voltage from the source is stepped up by the first ideal transformer and then stepped down by the second ideal transformer before the load is delivered. The impedance at the middle is Zm=40+j30 ohms and sees some voltage source at its left side and some impedance on the right side. The load is known to consume 1.2kW and 300Vars as shown in the first figure. Use the current accross the impedance at the middle as the reference phasor where Im=4∠0° A. The first and second transformers have turns ratio of 1:50 and 50:1, respectively. Give the value of the real power and reactive power drawn from the source.
The voltage from the source is stepped up by the first ideal transformer and then stepped down by the second ideal transformer before the load is delivered. The impedance at the middle is Zm=40+j30 ohms and sees some voltage source at its left side and some impedance on the right side. The load is known to consume 1.2kW and 300Vars as shown in the first figure. Use the current accross the impedance at the middle as the reference phasor where Im=4∠0° A. Question: Give the value of the equivalent load impedance and the original load inpedance seen by Zm?
A center-tapped transformer has the schematicrepresentation shown in Figure. Theprimary-side voltage is stepped down to twosecondary-side voltages. Assume that each secondarysupplies a 5-kW resistive load and that the primary isconnected to 120 V rms. Finda. The primary power.b. The primary current.