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Please do the transformer question step by step
very important question
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QUESTION 4 (20...
Question 2 A single-phase transformer has the following nameplate ratings: 100 kVA, 7200/240 V and 60...
Question 2 A single-phase transformer has the following nameplate ratings: 100 kVA, 7200/240 V and 60 Hz. The following results are obtained from open-circuit and short-circuit tests: Test Open-circuit Short-circuit Voltage 7200 V 250 V Current 0.65 A 13.89 A Real Power Input 425 W 1420 W a) Determine the parameters of this transformer, all referred to the primary side. b) The secondary of this transformer is connected to a load that draws 100% of the rated power at rated...
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...
The short-circuit test readings for a 50-kVA 2400:240-V transformer are 48 V, 20.8 A, and 617...
The short-circuit test readings for a 50-kVA 2400:240-V transformer are 48 V, 20.8 A, and 617 W, with the instruments located on the high-voltage side and the low-voltage side short- circuited. An open-circuit test with the low-voltage side energized gives instrument readings on that side of 240 V, 5.41 A, and 186 W. 1. Calculate the equivalent parameters of the transformer as referred to the high-voltage side. 2. Draw the equivalent approximate circuit of that transformer referred to the high...
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...
Q6. A 50 Hz, 25 kVA 7200/240 V transformer has the following equivalent circuit parameters: Prima...
Please show full working
Q6. A 50 Hz, 25 kVA 7200/240 V transformer has the following equivalent circuit parameters: Primary resistance-1562, secondary resistance-0.02 Ω Primary leakage reactance-140Q, Secondary leakage reactance-0.15Q, Magnetising reactance 30 k2, Core loss resistance 200 k2 (a) The transformer is connected to two loads in parallel. The first load is 10 kW at 0.866 power factor lagging and the second load is 15kVA with a power factor of 0.8 lagging. Find the percentage regulation and power efficiency...
Q6. A 50 Hz, 25 kVA 7200/240 V transformer has the following equivalent circuit parameters: Prima...
Help me answer c and d
Q6. A 50 Hz, 25 kVA 7200/240 V transformer has the following equivalent circuit parameters: Primary resistance-1562, secondary resistance-0.02 Ω Primary leakage reactance-140Q, Secondary leakage reactance-0.15Q, Magnetising reactance 30 k2, Core loss resistance 200 k2 (a) The transformer is connected to two loads in parallel. The first load is 10 kW at 0.866 power factor lagging and the second load is 15kVA with a power factor of 0.8 lagging. Find the percentage regulation and...
(a) Describe the tests carried out on a single-phase transformer to determine its equivalent circuit parameters...
(a) Describe the tests carried out on a single-phase transformer to determine its equivalent circuit parameters and explain how each parameter is determined based on the test results. (b) A 2200/220 V, 15 kVA, single phase transformer has the following equivalent circuit parameters: The HV winding resistance and leakage reactance are 0.2Ω and 0.3Ω respectively. The LV winding resistance and leakage reactance are 0.012Ω and 0.03 Ω respectively. The magnetic circuit resistance and reactance referred to the HV side are...
Solvein pu sysvem 2-10. A 13,800/480 V three-phase Y-A-connected transformer bank consists of thr...
please solve the question in pu sysyem !!!!
Solvein pu sysvem 2-10. A 13,800/480 V three-phase Y-A-connected transformer bank consists of three identical 100-kVA 967/480-V transformers. I 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 Isc 12.6 A Pc3300 w (a) If this bank delivers a rated load at 0.85 PF lagging and rated voltage, what is the line-to-line voltage on...
Electric Machines Problem 1 (40 points) The following data were obtained for a 20 kVA,60 H...
Electric Machines
Problem 1 (40 points) The following data were obtained for a 20 kVA,60 H z, 2400/240 V distribution transformer tested at 60 Hz: HV open circuited: Voc 240 V, loc 1.038 A, Poc 122 W LV short circuited: Vc 61.3 V,Is8.33 A, Pc 257 W 1) Find the parameters of the transformer and equivalent circuit referred to LV side 2) Find voltage regulation when the transformer oper ates as step down and delivers its rated kVA at rated...
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-...
Question 2 A single-phase transformer has the following nameplate ratings: 100 kVA, 7200/240 V and 60 Hz. The following results are obtained from open-circuit and short-circuit tests: Test Open-circuit Short-circuit Voltage 7200 V 250 V Current 0.65 A 13.89 A Real Power Input 425 W 1420 W a) Determine the parameters of this transformer, all referred to the primary side. b) The secondary of this transformer is connected to a load that draws 100% of the rated power at rated...
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...
The short-circuit test readings for a 50-kVA 2400:240-V transformer are 48 V, 20.8 A, and 617 W, with the instruments located on the high-voltage side and the low-voltage side short- circuited. An open-circuit test with the low-voltage side energized gives instrument readings on that side of 240 V, 5.41 A, and 186 W. 1. Calculate the equivalent parameters of the transformer as referred to the high-voltage side. 2. Draw the equivalent approximate circuit of that transformer referred to the high...
Please show full working
Q6. A 50 Hz, 25 kVA 7200/240 V transformer has the following equivalent circuit parameters: Primary resistance-1562, secondary resistance-0.02 Ω Primary leakage reactance-140Q, Secondary leakage reactance-0.15Q, Magnetising reactance 30 k2, Core loss resistance 200 k2 (a) The transformer is connected to two loads in parallel. The first load is 10 kW at 0.866 power factor lagging and the second load is 15kVA with a power factor of 0.8 lagging. Find the percentage regulation and power efficiency...
Help me answer c and d
Q6. A 50 Hz, 25 kVA 7200/240 V transformer has the following equivalent circuit parameters: Primary resistance-1562, secondary resistance-0.02 Ω Primary leakage reactance-140Q, Secondary leakage reactance-0.15Q, Magnetising reactance 30 k2, Core loss resistance 200 k2 (a) The transformer is connected to two loads in parallel. The first load is 10 kW at 0.866 power factor lagging and the second load is 15kVA with a power factor of 0.8 lagging. Find the percentage regulation and...
please solve the question in pu sysyem !!!!
Solvein pu sysvem 2-10. A 13,800/480 V three-phase Y-A-connected transformer bank consists of three identical 100-kVA 967/480-V transformers. I 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 Isc 12.6 A Pc3300 w (a) If this bank delivers a rated load at 0.85 PF lagging and rated voltage, what is the line-to-line voltage on...
Electric Machines
Problem 1 (40 points) The following data were obtained for a 20 kVA,60 H z, 2400/240 V distribution transformer tested at 60 Hz: HV open circuited: Voc 240 V, loc 1.038 A, Poc 122 W LV short circuited: Vc 61.3 V,Is8.33 A, Pc 257 W 1) Find the parameters of the transformer and equivalent circuit referred to LV side 2) Find voltage regulation when the transformer oper ates as step down and delivers its rated kVA at rated...
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-...
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