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. Give the value of the equivalent load impedance and the original load inpedance seen by Zm?
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter30: Dc Motors
Section: Chapter Questions
Problem 6RQ: What is CEMF?
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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.
Give the value of the equivalent load impedance and the original load inpedance seen by Zm?
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