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![M Magnetizing ausent Ima Io sind) Im= 5x Sin (66.42) 5 x 0.916 A [Im= 4.58 A A ] Loss current Copper loss of Ac Transforme V²](http://img.homeworklib.com/questions/73e41270-11cb-11eb-876b-b347f2716582.png?x-oss-process=image/resize,w_560)
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Q1) The no-load current of a single phase transformer is 5.0 A at 0.4 power factor,...
Q1) The no-load current of a single phase transformer is 5.0 A at 0.4 power factor,...
Q1) The no-load current of a single phase transformer is 5.0 A at 0.4 power factor, when supplied at 250V, 50Hz. Primary turns are 200.Calculate i) R.M.S value of flux (3 marks) ii) Magnetizing current (3 marks) iii) Loss current (4 marks)
1kVA ideal single phase step-up transformer
Q1 A 1kVA ideal single phase step-up transformer is supplied by a 24 V ac power source and is delivering power to a 10 Ω resistive load connected to the secondary side. If the transformer is operated at full load (1kVA), determine, a) the secondary current IS; (3 marks) b) the secondary voltage VS; (2 marks) c) the primary current IP; (2 marks) d) the turn ratio of primary winding to secondary winding; and (2 marks) e) the number of...
Q1 A single-phase 11/2.2 kV, 22 kVA transformer has the following parameters all referred to the HV side RI 0.4, X 0...
Q1 A single-phase 11/2.2 kV, 22 kVA transformer has the following parameters all referred to the HV side RI 0.4, X 0.602, R2 7.5 , X2 22 , Re 2500 , and Xm - 20002 The transformer is supplying 80% of its rated load at a power factor of 0.87 power factor lagging and at its rated voltage. Calculate (a) the efficiency of the transformer, (b) the power losses on the primary side (the copper loss and core loss), and...
QUESTION 3 A 200 - MVA, 15/200 kV single-phase power transformer has a per – unit...
QUESTION 3 A 200 - MVA, 15/200 kV single-phase power transformer has a per – unit resistance of 1.2 percent and a per-unit reactance of 5 percent (data taken from the transformer's nameplate). The magnetizing impedance is impedance is j80 per unit. a. Find the equivalent circuit referred to the low-voltage side of this transformer. b. Calculate the voltage regulation of this transformer for a full-load current at power factor of 0.8 lagging. c. Assume that the primary voltage of...
A single-phase 400V/200V transformer is supplying a load of 4 kW at 200 volts, 0.9 power...
A single-phase 400V/200V transformer is supplying a load of 4 kW at 200 volts, 0.9 power factor lagging. Considering the transformer to be ideal, answer the following questions The output (secondary) current of this transformer 20.00/_25.84 A 20.00/_-25.84 A 22.22/_-25.84 A 22.22/_25.84 A 12.83/_-25.84 A 12.83/_23.28 A Load impedance in ohms. 8.10+j3.92 9.00-j4.36 3.62-j1.47 9.00+j4.36 4.50+j2.18 8.10-j3.92 The primary current 10.00/_25.84 A 10.00/_-25.84 A 40.00/_-25.84 A 44.44/_-25.84 A 11.11/_25.84 A 11.11/_-25.84 A The load impedance referred to the primary in...
A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load, which...
A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load, which is connected to the 240-volt secondary winding, absorbs 80 kVA at 0.8 power factor lagging and is at 230 volts. Assuming an ideal transformer, calculate the following: a) primary voltage. b) load impedance. c) load impedance referred to the primary. d) the real and reactive power supplied to the primary winding
5. Consider the one-ine diagram shown below. The three-phase transformer bank is made up of three identical single-phase transformer, each specified by X1-0.004 Ω (on the high-voltage side), negl...
5. Consider the one-ine diagram shown below. The three-phase transformer bank is made up of three identical single-phase transformer, each specified by X1-0.004 Ω (on the high-voltage side), negligible resistance and magnetizing current, and turns ratio N2/N,-10. The transformer bank is delivering is delivering 110MW at 0.9 power factor leading to a substation bus voltage is 230kV. Determine the reactive power supplied by the source. (3.47) whose To rest of the system Generator ΔΥ 230-kV substation bus Step-up transformer bank...
EMM2802 MAYIJUNE 2016 QUESTION B A single phase transformer has a high voltage to low voltage...
EMM2802 MAYIJUNE 2016 QUESTION B A single phase transformer has a high voltage to low voltage ratio of 10. The following parameters are referred to low voltage side, with a supply of 200V. Equvalent Impedance referred to low woltage side Zev 0.1+jo.s a Load impedance referred to low voltage side R-4000 X-2310 Magnetizing Branch referred to low voltage side Draw an approximate equivalent circut with the given parameters and determine the following: 81 The magnetizing current (), the core loss...
please take note the question is extend a) A single phase 240V 50Hz supply is supplying...
please take note the question is extend
a) A single phase 240V 50Hz supply is supplying a power to a load which consist of 500 resistance and 0.3H inductance through a cable which has an effective impedance of 1+j2 0. The equivalent circuit of the single-phase system is shown in Figure Q1(a). Zcable=1+j2 I Load 5092 240V 50Hz Supply V Load 0.3H Figure Q1(a): A single phase system. i. ii. Determine the load current, low and the load voltage Vood...
Q1‐ A single‐phase half‐bridge inverter is used to power a purely inductive load of 100mH. The inverter is supplied from a dc source of 300V, and is operated at a frequency of 50Hz using square‐wave m...
Q1‐ A single‐phase half‐bridge inverter is used to power a
purely inductive load of 100mH. The inverter is supplied from a dc
source of 300V, and is operated at a frequency of 50Hz using
square‐wave modulation.
a) Determine the values of the fundamental, 3rd, 5th and 7th
harmonic load current components
b) Determine the load current THD value.
Q1- A single-phase half-bridge inverter is used to power a purely inductive load of 100mH. The inverter is supplied from a de...
Q1) The no-load current of a single phase transformer is 5.0 A at 0.4 power factor, when supplied at 250V, 50Hz. Primary turns are 200.Calculate i) R.M.S value of flux (3 marks) ii) Magnetizing current (3 marks) iii) Loss current (4 marks)
Q1 A single-phase 11/2.2 kV, 22 kVA transformer has the following parameters all referred to the HV side RI 0.4, X 0.602, R2 7.5 , X2 22 , Re 2500 , and Xm - 20002 The transformer is supplying 80% of its rated load at a power factor of 0.87 power factor lagging and at its rated voltage. Calculate (a) the efficiency of the transformer, (b) the power losses on the primary side (the copper loss and core loss), and...
QUESTION 3 A 200 - MVA, 15/200 kV single-phase power transformer has a per – unit resistance of 1.2 percent and a per-unit reactance of 5 percent (data taken from the transformer's nameplate). The magnetizing impedance is impedance is j80 per unit. a. Find the equivalent circuit referred to the low-voltage side of this transformer. b. Calculate the voltage regulation of this transformer for a full-load current at power factor of 0.8 lagging. c. Assume that the primary voltage of...
A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load, which is connected to the 240-volt secondary winding, absorbs 80 kVA at 0.8 power factor lagging and is at 230 volts. Assuming an ideal transformer, calculate the following: a) primary voltage. b) load impedance. c) load impedance referred to the primary. d) the real and reactive power supplied to the primary winding
5. Consider the one-ine diagram shown below. The three-phase transformer bank is made up of three identical single-phase transformer, each specified by X1-0.004 Ω (on the high-voltage side), negligible resistance and magnetizing current, and turns ratio N2/N,-10. The transformer bank is delivering is delivering 110MW at 0.9 power factor leading to a substation bus voltage is 230kV. Determine the reactive power supplied by the source. (3.47) whose To rest of the system Generator ΔΥ 230-kV substation bus Step-up transformer bank...
EMM2802 MAYIJUNE 2016 QUESTION B A single phase transformer has a high voltage to low voltage ratio of 10. The following parameters are referred to low voltage side, with a supply of 200V. Equvalent Impedance referred to low woltage side Zev 0.1+jo.s a Load impedance referred to low voltage side R-4000 X-2310 Magnetizing Branch referred to low voltage side Draw an approximate equivalent circut with the given parameters and determine the following: 81 The magnetizing current (), the core loss...
please take note the question is extend
a) A single phase 240V 50Hz supply is supplying a power to a load which consist of 500 resistance and 0.3H inductance through a cable which has an effective impedance of 1+j2 0. The equivalent circuit of the single-phase system is shown in Figure Q1(a). Zcable=1+j2 I Load 5092 240V 50Hz Supply V Load 0.3H Figure Q1(a): A single phase system. i. ii. Determine the load current, low and the load voltage Vood...
Q1‐ A single‐phase half‐bridge inverter is used to power a
purely inductive load of 100mH. The inverter is supplied from a dc
source of 300V, and is operated at a frequency of 50Hz using
square‐wave modulation.
a) Determine the values of the fundamental, 3rd, 5th and 7th
harmonic load current components
b) Determine the load current THD value.
Q1- A single-phase half-bridge inverter is used to power a purely inductive load of 100mH. The inverter is supplied from a de...
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