In the transformer experiment performed in the lab, following coils were used to form a step up transformer:200800100 22W1022W And the observed experimental values are tabulated below:Measured Experimental ValuesInput voltage Input Current Output Voltage Output currentVp [V]Ip [A]Vs [V]Is [A]5.80.79614.750.174Calculate the following:Calculated ValuesLoad Resistance used in ohmsPrimary coil turns (Np)Secondary coil turns (Ns)Actual Voltage GainIdeal Voltage GainInput Power in wattsOutput Power in wattsEfficiency of the transformer in percentage

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Engineering

Electrical Engineering

Load Resistance used in ohms Primary coil turns (Np) Secondary coil turns (Ns)

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter4: Symbols

Section: Chapter Questions

Problem 7SQ: The symbol shown is a(n) a. iron core transformer. b. auto transformer. c. current transformer. d....

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Winding and Constructions

Alternating Current (AC) winding is generally of the 3-phase type due to the inherent advantages of the 3-phase machine. Armature coils must be connected to the yield balance (equivalent in magnitude and 2/3 of the series phase difference of the rod) 3-phase electromotive forces (emf). The armature should be divided into step-bands to start with slots around the perimeter.In the construction of AC machines, the frame is used as an external protective shield to protect it from environmental conditions. The frame also serves as the outer perimeter, allowing the interior to be easily placed. The static state section of the devices is the stator winding attached stator.

Question

In the transformer experiment performed in the lab, following coils were used to form a step up transformer:
200
800
100 2
2W
102
2W

And the observed experimental values are tabulated below:
Measured Experimental Values
Input voltage Input Current Output Voltage Output current
Vp [V]
Ip [A]
Vs [V]
Is [A]
5.8
0.796
14.75
0.174
Calculate the following:
Calculated Values
Load Resistance used in ohms
Primary coil turns (Np)
Secondary coil turns (Ns)
Actual Voltage Gain
Ideal Voltage Gain
Input Power in watts
Output Power in watts
Efficiency of the transformer in percentage

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