2. Performance of a SKVA, 230/115V, 50HZ, single phase transformer on open circuit and short circuit test is listed in Table Q2. Voltage Current Power O/C test 11SV 6.5A 192W High voltage side open circuited S/C test 17.5V 21.7A 234W Low voltage side short circuited Table Q2 Evaluate the approximate equivalent circuit parameters referred to the low a. voltage side; b. Evaluate the copper loss at full load; Evaluate the efliciency at full load and 0.85 power factor lagging. C.

2. Performance of a SKVA, 230/115V, 50HZ, single phase transformer on open circuit and short circuit test is listed in Table Q2. Voltage Current Power O/C test 11SV 6.5A 192W High voltage side open circuited S/C test 17.5V 21.7A 234W Low voltage side short circuited Table Q2 Evaluate the approximate equivalent circuit parameters referred to the low a. voltage side; b. Evaluate the copper loss at full load; Evaluate the efliciency at full load and 0.85 power factor lagging. C.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Related questions

Q: 1. If a 0.6 accuracy class current transformer has a phase angle of + 10 at 100% rated current, the…

A: Ans.(1). Value of 'β=10'

Q: Question- For a single phase 440/110 V transformer having input on primary side at no load is 100 W.…

Q: A 100 kVA,3-phase, 50 Hz, 3,300/400 V transformer is A-connected on HV side and Y- connected on LV…

Q: (b) Tests are performed on 14, 5 KVA, 110/1110, 50 Hz transformer and the following results are…

Q: A 50 kVA ,11000/230V,50-Hz transformer has a high voltage winding resistance of 0.12 and a leakage…

Q: A I0 kVA, single-phase transformer has a turns ratio of 12:1 and is supplied from a 24 kV supply.…

Q: How to generate 480V three phase 400Hz ac from 230V three phase 60Hz ac source? (Please specify the…

Q: 3. A 3200/400 single-phase transformer has winding resistance and reactance of 30 and 132…

A: In this question, We need to determine the equivalent terms in primary side and secondary side.

Q: 55 V / 220 V, 50 Hz single phase transformer, high voltage (secondary) windings are left idle and…

A: Winding resistance of the secondary referred to the primary, R2'=0.015 Ω

Q: -V 50-Hz distribution transformer is tested for efficiency and regulation as follows OC. test( Low…

A: Note: We are authorized to answer three sub parts at a time, since you have not mentioned which part…

Q: Q3-(A)- Three single-phase, 50 kVA, 2310/ 230 V, 60 a 3-phase, star /delta, 4000/230V transformer…

A: NOTE- According to the policy, we can answer sub-parts of the first question, kindly post other…

Q: 3.16 A single-phase, 50-k VA, 2400/240-V, 60-Hz distribution transformer has the following…

A: It is given that:

Q: The values of a phase measured from the no-load (no load) operation and short circuit test of a…

Q: Detailed conclusions we can come up with after conducting open circuit test on single phase…

A: According to the question we have to, Detailed conclusions we can come up with after conducting an…

Q: 2- A 100 kVA,3-phase, 50 Hz, 6,600/400 V transformer is A -connected on HV side and Y- connected on…

Q: What's The relation between turn ratio current ratio annd voltage ratio(if it exists) for single…

A: The transformer is a static device that steps up or steps down the voltage depending upon the turn…

Q: equivalent winding (a) resistance,(b) reactance and (c) impedance referred to the high voltage side.

Q: 1. A 150 KVA, 2080/208-V, 3 PHASE, delta-wye transformer with the following: R₁=450mQ R₁=4.5mQ…

Q: A 200MVA 200/15kV single-phase power transformer has a per-unit resistance of 1.1% and a per-unit…

A: Given, 200MVA woo/15KV single phase transformer RPu = 1.1% and XPu = 2% we need to determine…

Q: The rating of current transformer is given as 200/5A 5P10 20VA. Assume that the secondary resistance…

Q: A 40 KVA, 1000 V/ 400 V, 50 Hz, single phase transformer has HV and LV side winding resistance as…

A: Given- 40 KVA, 1000 V/400 V, 50 Hz, single phase transformer, HV side winding resistance = 0.7 ohm,…

Q: Single phase 10 kVA, 480 V / 120 V to feed a 120 V load from a 600 V source conventional transformer…

Q: 55 V / 220 V, 50 Hz single phase transformer, high voltage (secondary) windings are left idle and…

A: Referring the resistance at primary side, R1=0.026 Ωand the inductance at secondary side,X1=0.045…

Q: A 1-ph transformer 25kVA, 330/110V, 50Hz, Req2 = 0.04522 and Xeq2 = 0.0650 draw the Kapp regulation…

A: Single Phase Transformer: An electrical device that accepts single-phase alternating current and…

Q: A 150 kVA, 2500/250 V, 50 Hz, single phase transformer has a no-load current of 0.75 A and a core…

Q: 4-If the transformer is loaded by purely capacitive load, what is the expected regulation and…

A: if the transformer is loaded by purely capacitive load what is the expected regulation and…

Q: A 125 kVA transformer has primary voltage of 2000 at 60 Hz. Primary turns are 182 and secondary…

Q: A single-phase transformer 11000/420 V, 50 kVA, 50 Hz has resistance and leakage reactance as…

Q: Pt = Pt = P+ = Pt Pr G+ x Gr > (4nd)² 1x106 (00X100 x/0.112 1x 10-6 4X3.14 X 600² 10000 x 0.1…

Q: A 1-ph transformer 25kVA, 330/110V, 50Hz, Req2 = 0.0452 and Xeq2 = 0.06592 draw the Kapp regulation…

A: Single Phase Transformer: A single phase transformer is a transformer that uses only one phase of…

Q: Can efficiency be determined for a single phase transformer under open circuit test ?and if so…

A: Open circuit test on transformer: Open circuit test on a transformer is done to determine the no…

Q: What is the relationship between primary induced emf( E1) and applied voltage (V1) of a Transformer?…

A: The relationship between primary induced emf( E1) and applied voltage (V1)

Q: In the single-phase, three- winding, transformer, the primary current is equal to lo at the…

A: In this question we need to choose a correct option

Concept explainers

Distribution System

The final stage in the delivery of the electric power is the electric power distribution system. From the transmission system to the individual customers it carries electricity. The distribution system is connected with the transmission system and is used to lower the voltage of the transmission to medium voltage in the range of 2 kV to 35 kV with the help of transformers. This medium voltage to the distribution transformers located near the customer's premises is carried by the primary distribution system lines. These distribution transformers in turn lower the voltage to utilization voltage used in lightings, household appliances, industrial equipments etc. Through secondary distribution lines often several customers are supplied from one transformer. It is through service drops, the commercial and residential customers are connected to the secondary distribution system lines. Customers who demand a larger amount of power can be connected directly to the primary distribution system level or the sub-transmission level.

Question

2.
Performance of a SKVA, 230/115V, 50HZ, single phase transformer on open
circuit and short circuit test is listed in Table Q2.
Voltage
Current
Power
O/C test
11SV
6.5A
192W
High voltage side open
circuited
S/C test
17.5V
21.7A
234W
Low voltage side short
circuited
Table Q2
Evaluate the approximate equivalent circuit parameters referred to the low
a.
voltage side;
b.
Evaluate the copper loss at full load;
Evaluate the efliciency at full load and 0.85 power factor lagging.
C.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Step 8

Step 9

Step by step

Solved in 9 steps with 9 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

5. A 50-kVA 20,000/480-V 60-Hz single-phase distribution transformer is tested with the following results: Open-circuit test (measured from secondary side) Voc 480 V Ioc = 4.1 A Poc 620 W Short-circuit test (measured from primary side) Vsc=1130 V Isc = 1.30 A Psc=550 W a) Find the per-unit equivalent circuit for this transformer at 60 Hz. b) What is the efficiency of the transformer at rated conditions and unity power factor? What is the voltage regulation at those conditions? c) What would the ratings of this transformer be if it were operated on a 50-Hz power system? d) Sketch the equivalent circuit of this transformer referred to the primary side if it is operating at 50 Hz. e) What is the efficiency of the transformer at rated conditions on a 50 Hz power system, with unity power factor? What is the voltage regulation at those conditions? f) How does the efficiency of a transformer at rated conditions and 60 Hz compare to the same physical device running a 50 Hz?
A single-phase transformer has 180 and 45 turns, respectively, on its primary and secondary windings. The corresponding resistances are 0.2422 and 0.076 S2, respectively. Determine the equivalent resistance a. in primary terms, and b. in secondary terms.
A single phase 220/6 Volt, 50 Hz transformer has a rated primary current = 0.5 A. its maximum efficiency is at load current = 15 A and equal to 94% at unity p.f. Its efficiency at rated load, 0.65 p.f. lagging is: 087.8%. 092.3%. 090.9%. O None.
A 200 MVA 15/200 kV single-phase power transformer has a resistance of 2.40 and a reactance of 10.012 referred to the high voltage side. The voltage regulation of this transformer for the secondary winding current of 1100A at PF of 0.8 lagging is a. 5% b. 4.01% C. 3.8%
Q2/A/ What are the conditions for satisfying parallel operation of single phase transformer? Deduce an expression for the load shared by the two transformers in parallel when the transformers have equal voltage ratio? Prove your answer. B/ A 50 KVA, 2300/230 V, 60 11z transformer has a high voltage winding resistance of 0.650 and a low-voltage winding resistance of 0.0065 2. Laboratory tests showed the following results: Open circuit test: V = = 230 V, I =5.7A, P = 190 W Short circuit test: V-41.5 V, I-21.7 A, P-No wattmeter was used. 18 (2) Compute the value of primary voltage needed to give rated secondary voltage when the transformer is connected as a step-up one and is delivering 50 KVA at a power factor of 0.8 lagging. (b) Compute the efficiency under conditions of part (a).
a single-phase transformer serves a 7.2kw resistive loadlocated 200 ft from the transformer. each conductor from the transformer to load has an impedence of (0.78+j0.052) ohms per 1000ft. if the voltage at the load terminal is 240v, the magnitude of the voltage (v) at the transformer secondary is most nearly:
3. A dad ful comirester, Conneet ed to 230 v, fo Mz. Sousie bf. feedng a locel R: 10 n n senies wish a levnge Induadomre thad makes the load lenent rippie free · for a firing anyle of ur°, ewewlade the input and oatpud performante panametess of thik comveater.
A 36/240 V phase transformer, belonging to a phase measured from the no-load (idle) run and short-circuit test. values are given in the table below. High voltage by applying rated voltage to the low voltage winding (The winding ends were left unloaded and the results of the no-load test results were obtained. By applying nominal current to the high voltage windings, the low voltage windings were short-circuited, and the results of the short circuit test were obtained. In direct current test 1 V direct voltage is applied to the low voltage winding, and the transformer draws 500 A direct current. All equivalent Calculate the circuit elements as moved to the low voltage side. Idle run test: Voltage : 36V Power : 68W Current : 2,8A Short circuit test: Voltage : 15V Power : 325W Current : 42,2A
A short-circuit test has been carried out with a three-phase transformer of 30/6.5 kV. By experiment, the high-voltage side was short-circuited and it was read: Ik=30A, Uk=234V and Pk=5.24kW a) Find the nominal voltage drop in % for this transformer where a was measured power factor of 0.8 ind.Under a certain load of the transformer, we measure a voltage drop of 5%, when the primary side is at 30kV. b) Find the secondary clamping voltage at this particular load
1. A 1000-VA 350/140-V transformer has been tested to determine its equivalent circuit. The results of the tests are shown below. Open-circuit test Short-circuit test Voc = 235 V Vsc = 20.1 V loc = 0.57 A Isc = 9.6 A Poc = 34.3 w Psc = 42.7 W All data given were taken from the primary side of the transformer. Evaluate the equivalent circuit of this transformer referred to the low-voltage side of the transformer.
Full calculation with any assumption needed. All sub questions please as it is all related.