Q- Find the efficiency of a transformer if the primary side has 240 rmsV and #...
Q- Find the efficiency of a transformer if the primary side has 240 rmsV and # rmsA (given) and the secondary side has # V (given) and # ohms (given)
* You don't have to care about the word ( given) .. you can choose any value you want .. I just need to know how to solve this kind of problem
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Q- Find the efficiency of a transformer if the primary side has
240 rmsV and #...
Find the efficiency of a transformer given the following : 240mrsV and 100mA of primary 18...
Find the efficiency of a transformer given the following : 240mrsV and 100mA of primary 18 V and 15 Ohms of secondary.
Q/&&&A transformer rated at primary voltage 4800 volts and a secondary voltage of 240 volte what...
Q/&&&A transformer rated at primary voltage 4800 volts and a secondary voltage of 240 volte what is the turn's ratio and Primary and secondary current
. An ideal transformer has 600 turns on its primary side and 100 turns on its...
. An ideal transformer has 600 turns on its primary side and 100 turns on its secondary side. The primary voltage is 1000 V AC. a. Is this transformer considered to be Step-Up or Step-Down? b. What will the secondary voltage be with this configuration? c. What is the secondary current if the primary current is 100 A? d. The primary windings are reconnected to a 1000 V battery (DC) for a long time. What is the secondary voltage?
Q-1 A 60Hz, 480V/240V,960V A transformer is supplying a 960W passive load at 240V. The resistances...
Q-1 A 60Hz, 480V/240V,960V A transformer is supplying a 960W passive load at 240V. The resistances of the primary side and secondary side of the transformer are 1.092 and 0.252 respectively. If the no load losses of the transfomer is given by P-Vã 4800 W where Vn is the input voltage of the transformer in Volt. Answer the following: a) Calculate transformer efficiency b) Do you allow this transformer to be connected to 240V 50Hz distribution system? Explain. c What...
4. Given the power transformer circuit below: a. Given the resistor on the secondary output side...
4. Given the power transformer circuit below: a. Given the resistor on the secondary output side is 100 ohms with a v across it of 40 volts, what is the transformer turns ratio, N? oltage b. What is the resistance '"seen" by the primary winding? c. What is the primary current, Ip? d. What is the secondary current, Is? 120 V ( boh3
4.41 Consider ạ 25 kVA, 240°/240 V, 60 Hz transformer with Z,-2.533 +J2.995 Ω and Z, = (2.5333 + ...
4.41 Consider ạ 25 kVA, 240°/240 V, 60 Hz transformer with Z,-2.533 +J2.995 Ω and Z, = (2.5333 + )2.995) 10-2 S2, referred to the primary and secondary sides, respectively. b) The transformer is connected at the receiving end of a feeder that has an impedance of 0.3 +j 1.8 Ω. Let the sending end-voltage magnitude of the feeder be 2400 V. Also there is a load connected to the secondary side of the transformer that draws rated current from...
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...
A transformer has 2000 turns at the primary side and 1000 turns at the secondary side....
A transformer has 2000 turns at the primary side and 1000 turns at the secondary side. If 240V 50Hz is supplied to the primary side and purely resistive load of 150 ohm is terminated to the secondary winding. Calculate the impedance of the primary input.
Problem 3 A 50-Hz transformer is operated from a 60 Hz supply. Assume that the load...
Problem 3 A 50-Hz transformer is operated from a 60 Hz supply. Assume that the load does not change. Discuss the corresponding effects on its flux, reactive power requirements, losses, and efficiency. а- [5 Points] A 50-kVA, 2400/240 V, 60-Hz, single-phase distribution transformer has the following equivalent circuit parameters referred to the high-voltage side Xea 3.0 Req= 0.5 Xm 4,500 S2 Use the equivalent Cantilever model circuit shown in Figure (1). Assume that the load on the secondary of the...
Problem 1: A three-phase transformer has the following name plate data: Rated Power Primary voltage Secondary...
Problem 1: A three-phase transformer has the following name plate data: Rated Power Primary voltage Secondary Voltage Excitation reactance Series Impedance 150 MVA 230 kV 32 kV 30 (pu) 0.02+0.15j (pu) The transformer is Y/A connected. Answer the following questions: a) What are the nominal (rated) primary and secondary line currents?| b) What is the nominal value of the Delta-side winding (internal) current? c) What is the secondary to primary winding turn ratio? d) The transformer is supplying 150 MVA...
Q/&&&A transformer rated at primary voltage 4800 volts and a secondary voltage of 240 volte what is the turn's ratio and Primary and secondary current
. An ideal transformer has 600 turns on its primary side and 100 turns on its secondary side. The primary voltage is 1000 V AC. a. Is this transformer considered to be Step-Up or Step-Down? b. What will the secondary voltage be with this configuration? c. What is the secondary current if the primary current is 100 A? d. The primary windings are reconnected to a 1000 V battery (DC) for a long time. What is the secondary voltage?
Q-1 A 60Hz, 480V/240V,960V A transformer is supplying a 960W passive load at 240V. The resistances of the primary side and secondary side of the transformer are 1.092 and 0.252 respectively. If the no load losses of the transfomer is given by P-Vã 4800 W where Vn is the input voltage of the transformer in Volt. Answer the following: a) Calculate transformer efficiency b) Do you allow this transformer to be connected to 240V 50Hz distribution system? Explain. c What...
4. Given the power transformer circuit below: a. Given the resistor on the secondary output side is 100 ohms with a v across it of 40 volts, what is the transformer turns ratio, N? oltage b. What is the resistance '"seen" by the primary winding? c. What is the primary current, Ip? d. What is the secondary current, Is? 120 V ( boh3
4.41 Consider ạ 25 kVA, 240°/240 V, 60 Hz transformer with Z,-2.533 +J2.995 Ω and Z, = (2.5333 + )2.995) 10-2 S2, referred to the primary and secondary sides, respectively. b) The transformer is connected at the receiving end of a feeder that has an impedance of 0.3 +j 1.8 Ω. Let the sending end-voltage magnitude of the feeder be 2400 V. Also there is a load connected to the secondary side of the transformer that draws rated current from...
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...
Problem 3 A 50-Hz transformer is operated from a 60 Hz supply. Assume that the load does not change. Discuss the corresponding effects on its flux, reactive power requirements, losses, and efficiency. а- [5 Points] A 50-kVA, 2400/240 V, 60-Hz, single-phase distribution transformer has the following equivalent circuit parameters referred to the high-voltage side Xea 3.0 Req= 0.5 Xm 4,500 S2 Use the equivalent Cantilever model circuit shown in Figure (1). Assume that the load on the secondary of the...
Problem 1: A three-phase transformer has the following name plate data: Rated Power Primary voltage Secondary Voltage Excitation reactance Series Impedance 150 MVA 230 kV 32 kV 30 (pu) 0.02+0.15j (pu) The transformer is Y/A connected. Answer the following questions: a) What are the nominal (rated) primary and secondary line currents?| b) What is the nominal value of the Delta-side winding (internal) current? c) What is the secondary to primary winding turn ratio? d) The transformer is supplying 150 MVA...
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