A CRT requires a 20.0-kV amplitude power supply. If the tube draws 90.0 W of power,...
A CRT requires a 20.0-kV amplitude power supply. If the tube draws 90.0 W of power, find the current in the primary winding. Assume an ideal transformer.
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A CRT requires a 20.0-kV amplitude power supply. If the tube
draws 90.0 W of power,...
2. In a television set the power needed to operate the picture tube is 95 W...
2. In a television set the power needed to operate the picture tube is 95 W and is derived from the secondary coil of a transformer. There is a current of 5.3 mA in the secondary coil. The primary coil is connected to a 120 V receptacle Find the turns ratio Ns /Np of the transformer
In this part of the term paper, design a single-phase switch-mode DC power supply with a forward ...
In this part of the term paper, design a single-phase switch-mode DC power supply with a forward converter. Provide answers to the questions below Please combine the single-phase full-wave rectifier from part two of your term paper with a forward converter to produce a switch-mode DC power supply, as shown below. The output of the bridge rectifier serves as input to the forward converter L1 Np: N BH621BH62 D, V1 Load C1 100p 45 Vrms D3 BH62 18H62 D4 Control...
three-phase transformer is rated at 12 kV/135 kV, 100 MVA. It has the following equivalent circuit...
three-phase transformer is rated at 12 kV/135 kV, 100 MVA. It has the following equivalent circuit parameters (referred to the primary winding where appropriate) : • primary resistance R1 = 0.03 ohms, secondary resistance R2’ = 0.04 ohms • primary leakage reactance X1 = 0.1 ohms, secondary leakage reactance X2’ = 0.1 ohms • magnetising reactance XM = 16 ohms, core-loss resistance RC = 200 ohms. In your calculations, you should use the simplified equivalent circuit. i) The transformer is...
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) In a television set the power needed to operate the picture tube comes from the...
a) In a television set the power needed to operate the picture tube comes from the secondary of a transformer. The primary of the transformer is connected to a 120-V receptacle on a wall. The picture tube of the television set uses 86 W, and there is 5.5 mA of current in the secondary coil of the transformer to which the tube is connected. Find the turns ratio Ns/Np of the transformer. b) A constant current of I = 15...
Please help with BOTH of the following questions for a thumbs up! Thanks! 8. + -/1...
Please help with BOTH of the following questions for a thumbs
up! Thanks!
8. + -/1 points SerPSE 10 32.8.OP.021. My Notes + Ask Your Teach A step-down transformer is used for recharging the batteries of portable electronic devices. The turns ratio N/N, for a particular transformer used in a DVD player is 1:14. When used with 120-V (rms) household service, the transformer draws an rms current of 33.0 mA from the house outlet. (a) Find the rms output voltage...
1. Is the power supply for a transformer AC or DC? Explain in detail why only...
1. Is the power supply for a transformer AC or DC? Explain in detail why only this type of power supply will work. 2. Some configurations with the iron core have low efficiency while others have high efficiency. What is the iron core doing to cause this? Be specific. (Hint: think about how a transformer works.) 3. For an ideal transformer the energy must be conserved, so the average power (P=IV) in the two circuits must be equal. Therefore, if...
Question 5 5 points A motor draws 450 mA current from a de power supply. It...
Question 5 5 points A motor draws 450 mA current from a de power supply. It has an effective resistance of 25 0. the supply voltage is V and the power dissipated in the motor is W.
(b) A 100 VA, 110/10 V conventional transformer is to be used to supply power from...
(b) A 100 VA, 110/10 V conventional transformer is to be used to supply power from a 110-V source to a 120-V load. Consider the transformer to be ideal i) Sketch the transformer connection that will do the required job ii) What is the kilovoltampere rating of the transformer in this configuration? i)Find the maximum primary and secondary currents under this condition.
a) Transformers work by the Principle of Electromagnetic Induction. Briefly explain this to a layman. b)...
a) Transformers work by the Principle of Electromagnetic Induction. Briefly explain this to a layman. b) i. [2 marks] [1 mark] State the two (2) types of losses in a transformer and also state where in the [2 marks] State two (2) advantages of an auto-transformer over an ordinary [2 marks] State why DC voltages do not work in transformers. 11. transformer these losses can be found. 111. transformer. c) Explain briefly why electric power is transmitted at very high...
2. In a television set the power needed to operate the picture tube is 95 W and is derived from the secondary coil of a transformer. There is a current of 5.3 mA in the secondary coil. The primary coil is connected to a 120 V receptacle Find the turns ratio Ns /Np of the transformer
In this part of the term paper, design a single-phase switch-mode DC power supply with a forward converter. Provide answers to the questions below Please combine the single-phase full-wave rectifier from part two of your term paper with a forward converter to produce a switch-mode DC power supply, as shown below. The output of the bridge rectifier serves as input to the forward converter L1 Np: N BH621BH62 D, V1 Load C1 100p 45 Vrms D3 BH62 18H62 D4 Control...
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...
Please help with BOTH of the following questions for a thumbs
up! Thanks!
8. + -/1 points SerPSE 10 32.8.OP.021. My Notes + Ask Your Teach A step-down transformer is used for recharging the batteries of portable electronic devices. The turns ratio N/N, for a particular transformer used in a DVD player is 1:14. When used with 120-V (rms) household service, the transformer draws an rms current of 33.0 mA from the house outlet. (a) Find the rms output voltage...
Question 5 5 points A motor draws 450 mA current from a de power supply. It has an effective resistance of 25 0. the supply voltage is V and the power dissipated in the motor is W.
(b) A 100 VA, 110/10 V conventional transformer is to be used to supply power from a 110-V source to a 120-V load. Consider the transformer to be ideal i) Sketch the transformer connection that will do the required job ii) What is the kilovoltampere rating of the transformer in this configuration? i)Find the maximum primary and secondary currents under this condition.
a) Transformers work by the Principle of Electromagnetic Induction. Briefly explain this to a layman. b) i. [2 marks] [1 mark] State the two (2) types of losses in a transformer and also state where in the [2 marks] State two (2) advantages of an auto-transformer over an ordinary [2 marks] State why DC voltages do not work in transformers. 11. transformer these losses can be found. 111. transformer. c) Explain briefly why electric power is transmitted at very high...
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