A 2.2KVA 600/120 V, transformer has the following data for its OC test and SC test:...
A 2.2KVA 600/120 V, transformer has the following data for its OC test and SC test:
|
OC Test: Voc: 120V Ioc: 0.6A Poc: 16W |
SC Test Vsc = 12V Isc = 3.67A Psc= 30W |
(a) Find the equivalent circuit referred to its HV and LV side.
(b) If it operating as a step-down transformer, and delivering its rated current at the rated voltage and 0.85 pf lagging, find what will be the input voltage.
(c) Find the Voltage regulation of this transformer.
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A 2.2KVA 600/120 V, transformer has the following data for its
OC test and SC test:...
lI. A single-phase 100 KVA, 2000/200 V transformer has the following test results Open-circuit (OC) test (LV side): 200 V, 8,0 A, 600 W Short-Circuit (SC) test (HV side): 100 V,50 A, 2000 W a. De...
lI. A single-phase 100 KVA, 2000/200 V transformer has the following test results Open-circuit (OC) test (LV side): 200 V, 8,0 A, 600 W Short-Circuit (SC) test (HV side): 100 V,50 A, 2000 W a. Determine the approximate equivalent circuit referred to the HV side. b. Find the voltage regulation at full-rated current delivering rated voltage and PF of 0.8 lagging. c. Calculate efficiency of transformer d. Assume that, voltage at HV side is 2000 V. Calculate the voltage at...
A 20 kVA, 60 Hz, 2400/240 V single-phase distribution transformer has been tested to determine its...
A 20 kVA, 60 Hz, 2400/240 V single-phase distribution transformer has been tested to determine its equivalent circuit. The results of the test are shown below: Open circuit Test (on low voltage side) Voc=240V, Ioc=1.028A, Poc=122W. Short circuit test (On high voltage side) Vsc=61.3V, Isc=8.33A, Psc=257W. The transformer is supplying power to a load that draws 15 kVA at 240 V. The load power factor is 0.90 lagging. Calculate the voltage regulation for this operation condition.
Electric Machinery Problem 2: [50 points] A 15-KVA, 230/2300-V transformer is considered. The following test data...
Electric Machinery
Problem 2: [50 points] A 15-KVA, 230/2300-V transformer is considered. The following test data have been taken: | OC Test (on Primary) Voc = 230 V loc = 2.8 A Poc = 100 W SC Test (on Secondary) Vsc = 47 V Isc = 9.5 A Psc = 350 W (a) Find the equivalent circuit of this transformer referred to the high- voltage side. [10 points] (b) Find the equivalent circuit of this transformer referred to the low-...
please solve it clearly A 1000-VA, 230/115-V has the following equivalent circuit parameters Referred to high...
please solve it clearly
A 1000-VA, 230/115-V has the following equivalent circuit parameters Referred to high voltage side Referred to low voltage side Req=0.503 Ohm Rc=3383 Ohm Xeq=1.905 Ohm XM=1099 Ohm (Find the expected values for the open and short circuit tests and fill the following table (show all steps Short Circuit test (High voltage side) =VSC - Isc-rated current Pse Open Circuit test (Low voltage side) -Voc -Ioc Poc Then .a) Find the equivalent circuit of this transformer referred...
4. Figure shows a power source that feeds a 100 kVA 14/2.4 kV transformer through a...
4. Figure shows a power source that feeds a 100 kVA 14/2.4 kV transformer through a feeder with impedance of 100/60° Ω Load 90 kw 0.85 PF lagging Feeder transmission line) Source Transformer Load The transformer has been tested to determine its equivalent circuit. The results of the tests are: Open-circuit test Voc = 14 kV oc 0.1 A Рос-800 w Short-circuit test Vsc 800 V Isc = 7A Psc 2 kW The load on the transformer is 90 kW...
Problem 1 | (30 points) followery A test 10,000 VA 115/230v transformer has the data Short-cacuit...
Problem 1 | (30 points) followery A test 10,000 VA 115/230v transformer has the data Short-cacuit 1 Open Current test Vse av Isc=104 Pse = 40 W Voc= 1151 Ioc=0.54 Poc=10w a) Find the equivalent carunt referred to the high voltage side 6) find the equivalent circut referred to the low voltage side Assume Shag = 10KVA and Voace = 230v on high Voltage side Find the equise bhut cjuit in per-unit 1) Using per-unit circuits fröd the wolting regulation...
I have these data from Open circuit and Short circuit tests: OCT: Voc= 105.9 v Ioc=...
I have these data from Open circuit and Short circuit tests:
OCT:
Voc= 105.9 v
Ioc= 0.08 A
Poc= 2 W
SCT:
Vsc= 12.9 V
Isc= 0.45 A
Psc= 3 W
pf= 0.669
How to correclty calculate the following
parameters:
The transformer rating
is
a. winding polarities b. core resistance and magnetization losses c. flux linkage losses d. winding resistances e. efficiency f. voltage regulation
For the following single phase transformer measurements calculate each of the equivalent circuit parameters: Rm, Xm,...
For the following single phase transformer measurements
calculate each of the equivalent circuit parameters: Rm, Xm, R1,
Xf1, R2, Xf2
Given:
No load: Voc =
120.77V
Ioc = 116
mA Poc =
3.0 w
Qoc = 13.7
VAr pf = .217
Full load: Vsc =
8.0V Isc
= 430 mA
Psc = 3.4
w
Qsc = .371
VAr pf = .994
0 Rm E Es N N2 2 9 a:5
The following data was obtained when open circuit and short circuit tests were performed on a...
The following data was obtained when open circuit and short circuit tests were performed on a single phase, 50 KVA, 2,400:240 V, 60 Hz distribution transformer: With high voltage winding open circuited: Voc = 240 V, Ioc = 4.85 A, Poc = 173 W With low voltage winding short circuited: Vsc = 52 V, Isc = 20.8 A, Psc = 650 W a) Determine the equivalent circuit of the transformer referred to its high voltage side and to its low...
Q No.1: A 14,000/130-V, three-phase, ∆-Y transformer bank consists of three identical 100-kVA, 83l4/130-V transformers. It...
Q No.1: A 14,000/130-V, three-phase, ∆-Y transformer bank consists of three identical 100-kVA, 83l4/130-V transformers. It is supplied with power directly from a large constant voltage bus. In the short-circuit test, the recorded values on the high-voltage side for one of these transformers are Vsc = 510V, Isc = 12.6 A, Psc = 3000 W (a) If this bank delivers a rated load at 0.8 PF lagging and rated Voltage, what is the line-to-line voltage on the primary of the...
lI. A single-phase 100 KVA, 2000/200 V transformer has the following test results Open-circuit (OC) test (LV side): 200 V, 8,0 A, 600 W Short-Circuit (SC) test (HV side): 100 V,50 A, 2000 W a. Determine the approximate equivalent circuit referred to the HV side. b. Find the voltage regulation at full-rated current delivering rated voltage and PF of 0.8 lagging. c. Calculate efficiency of transformer d. Assume that, voltage at HV side is 2000 V. Calculate the voltage at...
Electric Machinery
Problem 2: [50 points] A 15-KVA, 230/2300-V transformer is considered. The following test data have been taken: | OC Test (on Primary) Voc = 230 V loc = 2.8 A Poc = 100 W SC Test (on Secondary) Vsc = 47 V Isc = 9.5 A Psc = 350 W (a) Find the equivalent circuit of this transformer referred to the high- voltage side. [10 points] (b) Find the equivalent circuit of this transformer referred to the low-...
please solve it clearly
A 1000-VA, 230/115-V has the following equivalent circuit parameters Referred to high voltage side Referred to low voltage side Req=0.503 Ohm Rc=3383 Ohm Xeq=1.905 Ohm XM=1099 Ohm (Find the expected values for the open and short circuit tests and fill the following table (show all steps Short Circuit test (High voltage side) =VSC - Isc-rated current Pse Open Circuit test (Low voltage side) -Voc -Ioc Poc Then .a) Find the equivalent circuit of this transformer referred...
4. Figure shows a power source that feeds a 100 kVA 14/2.4 kV transformer through a feeder with impedance of 100/60° Ω Load 90 kw 0.85 PF lagging Feeder transmission line) Source Transformer Load The transformer has been tested to determine its equivalent circuit. The results of the tests are: Open-circuit test Voc = 14 kV oc 0.1 A Рос-800 w Short-circuit test Vsc 800 V Isc = 7A Psc 2 kW The load on the transformer is 90 kW...
Problem 1 | (30 points) followery A test 10,000 VA 115/230v transformer has the data Short-cacuit 1 Open Current test Vse av Isc=104 Pse = 40 W Voc= 1151 Ioc=0.54 Poc=10w a) Find the equivalent carunt referred to the high voltage side 6) find the equivalent circut referred to the low voltage side Assume Shag = 10KVA and Voace = 230v on high Voltage side Find the equise bhut cjuit in per-unit 1) Using per-unit circuits fröd the wolting regulation...
I have these data from Open circuit and Short circuit tests:
OCT:
Voc= 105.9 v
Ioc= 0.08 A
Poc= 2 W
SCT:
Vsc= 12.9 V
Isc= 0.45 A
Psc= 3 W
pf= 0.669
How to correclty calculate the following
parameters:
The transformer rating
is
a. winding polarities b. core resistance and magnetization losses c. flux linkage losses d. winding resistances e. efficiency f. voltage regulation
For the following single phase transformer measurements
calculate each of the equivalent circuit parameters: Rm, Xm, R1,
Xf1, R2, Xf2
Given:
No load: Voc =
120.77V
Ioc = 116
mA Poc =
3.0 w
Qoc = 13.7
VAr pf = .217
Full load: Vsc =
8.0V Isc
= 430 mA
Psc = 3.4
w
Qsc = .371
VAr pf = .994
0 Rm E Es N N2 2 9 a:5
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