1 knR,3.3 knR.1 kn120 0100 n200v2.2 kn200(n)(bFIGURE 7.49 20. The circuit shown in Figure 7.49b has a load with a range of R. = 10 N to 100 N.Delermine the normal range of V. for the circuit using its Thevenin equivalent.

We need to find out thevenin equivalent resistance and thevenin equivalent voltage for given circuit…

Answered: 1 kn R, R. 1 kn 100 n 120 0 20 V 22kn…

Engineering

Electrical Engineering

1 kn R, R. 1 kn 100 n 120 0 20 V 22kn 200 A (a) FIGURE 7.49

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter29: Dc Generators

Section: Chapter Questions

Problem 16RQ: Explain the difference between cumulative- and differential-compounded connections.

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Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.

Question

1 kn
R,
3.3 kn
R.
1 kn
120 0
100 n
20
0v
2.2 kn
200
(n)
(b
FIGURE 7.49

20. The circuit shown in Figure 7.49b has a load with a range of R. = 10 N to 100 N.
Delermine the normal range of V. for the circuit using its Thevenin equivalent.

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