Conclusions: 1. Due to the increase in load, what change you saw in the transformer’s output power and the efficiency? 2. Due to the increase in load, what change you saw in the transformer’s output power and voltage regulation
Conclusions: 1. Due to the increase in load, what change you saw in the transformer’s output power and the efficiency? 2. Due to the increase in load, what change you saw in the transformer’s output power and voltage regulation
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Conclusions:
1. Due to the increase in load, what change you saw in the transformer’s output power and the efficiency?
2. Due to the increase in load, what change you saw in the transformer’s output power and voltage regulation?
Transcribed Image Text:Model Calculation:
x 100%
W.
- Eュ-V2
E,
% 1 =
VR%
X 100%
1.
2.
105,8
xlo0%
121
VRZ - 230,8- 225,3 x100%
%n
%3!
2308
% n= 87,43% *
Graph:
VR%. = 2,38%
Veltage Regukation
(%VR)
%3D
Scale:
X axis 1 unit = wa L5)w
Y axis 1 unit = ) ( 2e %
Scale:
X axis 1 unit = walse) w
Y axis 1 unit = (% VR) Co,SI
%3D
%3D
4.5
3.5
25
80
2.
ba
40
20
Conclusions:
1. Due to the increase in load, what change you saw in the transformer's output power and the efficiency?
2. Due to the increase in load, what change you saw in the transformer's output power and voltage
regulation?
![Aim:
To do direct loading test on a single-phase transformer and
a) To determine the Percentage Voltage Regulation of Single-Phase Transformer.
b) To determine the Efficiency of Single-Phase Transformer.
Apparatus required:
SI. No
Name of the Apparatus
Specification / Range
Quantity
Phase fanse
2.
1
2
Phose toto-Franformes
Digital uathmeter
300v, SA
3
2
Phase Transfomer
booVA
4
Phase lamp lond
6.
wares
7
Circuit Diagram:
Dey tal unthmeterı
Beov, SA
Digital uattmekey 2
30ev, SA
(-Plase
Fele
1- Phase
Aucto - Transferiner
1-Phase Thufemer
Procedure:
1. Make the connections as shown in the circuit diagram.
2. Keep the voltage knob of the AC supply (Auto Transformer) in minimum condition and then switch
ON the AC supply.
3. Turn the 2-pole switch to ON condition.
4. First measure the open circuit voltage of the secondary (E2) with input VI =220 V.
5. Record now the different readings as shown in the table by varying the voltage of the auto
transformer
6. Vary the load one by one up to 4 lamps.
7. Make the necessary calculation and draw the required graphs (for Scale).
Observation:
Rated Primary Voltage,
Vi -.220,2.Volts
No-Load (or) Open circuit Voltage, E2 -.230,&. Volts
Measured Values
Calculated Values
E-V2 x 100%
VR% =
SI.
W.
프2x 100%
VI
WI
Va
W2
96 1 W,
No
7 =
Watts
E,
Volts
Amps
Watts
Volts
Amps
| 1 | 22e,2| 이13 | 13,4 |2398
2 218,8 0,65 121 2253o,462 l05,8
87,43%
2,38%
217,6 1,043 227,8 220,8 0,921 206,7
90,73%
4,33%
3
4 215,6 1.45 331,9 219,6 ,37 8037
91,50 %
% 98'4
Works to be done:
1. Measure the primary and secondary parameters.
2. Calculate the Efficiency and Regulation for each set of readings
3. Draw the graph (to Scale) Efficiency (%n) [in Y axis] vs Output power (W2) [in X axis]
4. Draw the graph (to Scale) Voltage Regulation (%VR) [in Y axis] vs Output power (W2) [in X axis]
2uoUrBott2, 1-Phase, Ac suPpy
haße Lanplond](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F736b422b-77f4-4580-83ac-50a40a39a65e%2F633e7c67-d09e-4f5f-abd7-4980c68ad5d8%2F15viuo_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Aim:
To do direct loading test on a single-phase transformer and
a) To determine the Percentage Voltage Regulation of Single-Phase Transformer.
b) To determine the Efficiency of Single-Phase Transformer.
Apparatus required:
SI. No
Name of the Apparatus
Specification / Range
Quantity
Phase fanse
2.
1
2
Phose toto-Franformes
Digital uathmeter
300v, SA
3
2
Phase Transfomer
booVA
4
Phase lamp lond
6.
wares
7
Circuit Diagram:
Dey tal unthmeterı
Beov, SA
Digital uattmekey 2
30ev, SA
(-Plase
Fele
1- Phase
Aucto - Transferiner
1-Phase Thufemer
Procedure:
1. Make the connections as shown in the circuit diagram.
2. Keep the voltage knob of the AC supply (Auto Transformer) in minimum condition and then switch
ON the AC supply.
3. Turn the 2-pole switch to ON condition.
4. First measure the open circuit voltage of the secondary (E2) with input VI =220 V.
5. Record now the different readings as shown in the table by varying the voltage of the auto
transformer
6. Vary the load one by one up to 4 lamps.
7. Make the necessary calculation and draw the required graphs (for Scale).
Observation:
Rated Primary Voltage,
Vi -.220,2.Volts
No-Load (or) Open circuit Voltage, E2 -.230,&. Volts
Measured Values
Calculated Values
E-V2 x 100%
VR% =
SI.
W.
프2x 100%
VI
WI
Va
W2
96 1 W,
No
7 =
Watts
E,
Volts
Amps
Watts
Volts
Amps
| 1 | 22e,2| 이13 | 13,4 |2398
2 218,8 0,65 121 2253o,462 l05,8
87,43%
2,38%
217,6 1,043 227,8 220,8 0,921 206,7
90,73%
4,33%
3
4 215,6 1.45 331,9 219,6 ,37 8037
91,50 %
% 98'4
Works to be done:
1. Measure the primary and secondary parameters.
2. Calculate the Efficiency and Regulation for each set of readings
3. Draw the graph (to Scale) Efficiency (%n) [in Y axis] vs Output power (W2) [in X axis]
4. Draw the graph (to Scale) Voltage Regulation (%VR) [in Y axis] vs Output power (W2) [in X axis]
2uoUrBott2, 1-Phase, Ac suPpy
haße Lanplond
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