Consider a source of voltage v ( t ) = 10 2 sin ( 2 t ) V , with an internal resistance of 1800 Ω . A transformer that can be considered as ideal is used to couple a 50 Ω resistive load to the source. (a) Determine the transformer primary-to-secondary turns ratio required to ensure maxi mum power transfer by matching the load and source resistances. (b) Find the average power delivered to the load, assenting maximum power transfer.
Consider a source of voltage v ( t ) = 10 2 sin ( 2 t ) V , with an internal resistance of 1800 Ω . A transformer that can be considered as ideal is used to couple a 50 Ω resistive load to the source. (a) Determine the transformer primary-to-secondary turns ratio required to ensure maxi mum power transfer by matching the load and source resistances. (b) Find the average power delivered to the load, assenting maximum power transfer.
Solution Summary: The author states that the power transferred will be maximum when the value of load resistance is equal to the internal resistance of the source.
Consider a source of voltage
v
(
t
)
=
10
2
sin
(
2
t
)
V
, with an internal resistance of
1800
Ω
. A transformer that can be considered as ideal is used to couple a
50
Ω
resistive load to the source. (a) Determine the transformer primary-to-secondary turns ratio required to ensure maxi mum power transfer by matching the load and source resistances. (b) Find the average power delivered to the load, assenting maximum power transfer.
A 220V(rms), 50HZ sinusoidal source is connected to the primary side of an ideal transformer
with 100 turns on the primary side and 300 turns on the secondary side. Primary line resistance is
22 and inductance is 10mH. Secondary line resistance is 92 and inductance is 100mH. There is
a 1002 resistive load connected on the secondary side.
Draw a well-labeled circuit diagram and determine:
(i) Currents on both sides
(ii) Load Voltage
(iii) Complex power supplied by the source
Explaination please...Thank you for your help!
A 40 kVA 6000/240-V distribution transformer has an impedance referred to the primary of 15+j80Ω. The components of the excitation branch referred to the primary side are RC = 80 kΩ and XM =25 kΩ. The primary voltage is 5975 V and the load impedance is 2.2 + j0.8 Ω. What is the voltageregulation of the transformer?
A step-up transformer connected to a 180 V line is used to supply a hydrogen-gas discharge tube with 6.0 kV (rms). The tube dissipates 77 W of power.
(a) What is the ratio of the number of turns in the secondary winding to the number of turns in the primary winding?
N₂
Np
(b) What are the rms currents in the primary and secondary windings (in A)?
Ip =
Is =
A
A
(c) What is the effective resistance (in 22) seen by the 180 V source?
Ω
Chapter 3 Solutions
Power System Analysis and Design (MindTap Course List)
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