e core loss
Q: Seconday winding of transformer is made-up of material. O insulated CRGO conductor O insulated…
A: Given Secondary winding of transformer is made by using which type of conductor
Q: What is phase angle of voltage induced in primary and secondary windings of transformers due to…
A: Transformer have 2 winding. Primary and secondary winding Phase angle between and secondary winding…
Q: b)discuss the core - losses (Rc).
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Q: The function of Copper shading band in induction type energy meter is to ensure flux produced by…
A: One of the two coils in energy meter is potential coil called shunt magnet and copper shading bands…
Q: Transformer cores
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Q: E-06, PC-05. Why are the iron cores of most induction coils laminated? O To increase the core…
A: core are laminated to tranfer efficient power from primary coil to secondary coil.
Q: At 50 Hz operation, a single-phase transformer has hysteresis loss of 200 W and eddy current loss of…
A: Given values of loss at 50 (Hz) frequency are - Hysteresis lossPH50=200WEddy current lossPE50=100W…
Q: In a transformer, the core loss is found to be 60 watts at 30 Hz and 90 watts at 40 Hz measured at…
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Q: A current transformer with bar primary has 300 turns in its secondary winding. The resistance and…
A: A bar type current transformer utilizes the real cable or bus-bar of the main transformer as the…
Q: A single phase transformer with the maximum value of flux 0.0991wb and an effective cross sectional…
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Q: 2. In a transformer,the core loss is found to be 52 W at 40 Hz and 90W at 60 Hz measured at same…
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Q: Q1// What is the purpose of conducting (O experiments (o.c) and (s.c) on asingle phase transformer?
A: A transformer is an electrical machine which is used in AC circuit to either step up or step down…
Q: In transformer, the eddy current loss can be minimized by using thin size copper conductors using…
A: Transformer have 2 types losses In the question the eddy current losses can be minimised by???
Q: A power transformer has 1000 primary turns and 100 secondary turns. The cross-sectioal area of the…
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Q: When rated voltage at rated frequency is applied to a single phase transformer the hysteresis and…
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Q: a buck converter, what are the benefits and disadvantages if the changes of duty cycle is drastic…
A: Duty cycle : Duty cycle in the power system is defined as the ratio of the time during which a load…
Q: current flowing in the of a transformer creates an alternating which establishes an alternating flux…
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Q: Consider a single phase transformer with 100 turns on the primary and 200 turns on the secondary. In…
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Q: A 35KVA, transformer has 50 Hz frequency input with voltage values given as 300/220V, with primary…
A: It is given that: kVA=35 kVAf=50 HzV1V2=300220N1=550
Q: Q.4. What do you mean by iron space factor with respect to transformer core? he eunnl h
A: Consider the formula for the iron space factor. k=AAc Here, A is the gross area of the core and ACis…
Q: e minimum force
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Q: There is no magnetic core loss in an ideal transformer Select one: O True O False
A: The explanation is as follows.
Q: In no load phasor diagram of practical transformer, the magnetizing current Imag is with primary…
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Q: In a transformer the core loss component is 90 degrees with the flux Select one: O True O False
A: Given: Core loss component . In no load condition of transformer ,the secondary is open circuited…
Q: In a transformer the core loss component is 90 degrees with the flux Select one: True False
A: The wires wound around the core of transformer produces flux. MMF is given by NI, where N is the…
Q: A transformer core is laminated to 1. Reduce the copper loss 2. Reduce the eddy current loss
A: The solution is provided in the following section.
Q: A transformer has equivalent resistance referred to secondary R02 and reactance referred to…
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Q: A single-phase transformer has its maximum efficiency at 60% of full load. At full load copper loss…
A: For copper loss of transformer short circuit test is done on which a low voltage and high current is…
Q: e transformer
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Q: mode of operation: e and rms value of load current e and rms value of thyristor current
A: The RMS load current per phase is given by:…
Q: If a transformer is assumed ideal, then the flux intensity of the core approaches: a value that is…
A: In this question, Choose the correct options What is flux intensity of the core if transformer is…
Q: Q1// What is the purpose of conducting (U experiments (o.c) and (s.c) on asingle phase transformer?
A: A transformer is an electrical machine which is used in AC circuit to either step up or step down…
Q: (9) The hysteresis losses in electrical machines reduced. a- By core lamination. b- By core…
A: 9) The hysteresis losses in electrical machine can be reduced by using material having least…
Q: A transformer core is laminated in order to .
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Q: 16 *Q)-Indicate whether the following statements are true or false False True The value of flux…
A: According to our honor code, we can answer only one question at a time.
Q: During Short Circuit test at full-load current the power input to a transformer contains: Select…
A: consider the given circuit;
Q: False OC test is performed at reduced flux and SC test at Nominal Current True
A: OC test is performed at reduced flux and SC test at Nominal current True False
Q: In transformer, the hysteresis loss can be minimized by O using thin size copper conductors O using…
A: In this answer let us discuss how is is possible to minimize the hysteresis loss in a transformer as…
Q: Which of the following loss is the main reason for not using the solid transformer core? O…
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Q: voltage side. The voltage regulation of this transformer for the secondary
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Q: In no load phasor diagram of practical transformer, the magnetizing current Imag is , with flux Ø O…
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Q: In core type transformer, the core surrounds a considerable part of the windings. Select one: True…
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Q: (B)- Explain briefly, How can be minimized the core lossés in transformer
A: Core loss in transformer : Core on the transformer exist only when the transformer is energized it…
Q: As a transformer core, silicon steel has lower hysteresis losses than air. Select one: O True O…
A: Choose the correct option The given statement Is it true or false
Q: When 120 V, 60 Hz is applied to the primary winding of a transformer, the core loss is 240 W. When…
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Q: Write in Briefly about circuit breaker, current transformer and voltage transformer
A: The explanation is as follows.
Q: A transformer with normal voltage impressed has a flux density of 1.4 Tesla at rated frequency and a…
A: At given condition we need to find Eddy current loss and hysteresis loos of the given transformer.
Q: Primary winding of transformer is made-up of __________________________ material. a. insulated…
A: CRGO grade steel predominantly discovers applications as center material for power transformers and…
Q: 15. A single-phase, 50 Hz. core-type transformer has square core of 20 cm side. The permissible flux…
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Q: Total core loss is also called as Select one: O a. Magnetic loss O b.Copper loss O c. Eddy current…
A: Given data, Total core loss is also called as ______.
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- (a) Explain briefly what is fringing effect and leakage flux. (b) A ferromagnetic core is shown in Figure 1. The depth of the core is 10 cm. The other dimensions of the core are as shown in the figure. By assuming the magnetic leakage to be negligible and relative permeability of the core is 800. Calculate the total reluctance and find the value of the current that will produce a flux of 0.01 Wb. With this current, calculate the flux density at the top of the core 20 cm 40 cm 10 cm, 30 cm 500 turns 30 cm 30 cm Figure 1Total core loss is also called as Select one: O a. Magnetic loss O b.Copper loss O C. Eddy current loss O d. Hysteresis lossthe armature mmf can be -2 reduced by reluctance of the magnetic the circuit in the region of the pole .tip a) Increasing, O b) decreasing O c) don't put O
- For operation at 60 Hz and a given peak flux density, the core loss of a given core is 1W due to hysteresis and 0.5W due to eddy currents. Estimate the core loss for 400-Hz operation with the same peak flux density.A transformer has primary and secondary turns of 1250 and 125 respectively. It has core cross-sectionof 36 cm2 and its rms flux density is to be limited to 1.4 T (to prevent core saturation). Whatmaximum 50 Hz voltage can be applied on the primary side and the corresponding open-circuitsecondary voltage?The core has a mean length of 150 cm and its relative permeability can be assumed to be 8000. Whatwould be the rms exciting current when the transformer’s primary winding is excited at a voltage ascalculated above? Also calculate the magnetizing susceptance as seen from primary and secondarysides.If the transformer were to be excited at 60 Hz, 1. What should be the maximum primary voltage for thecore flux density limit not to be exceeded? 2. What would be the magnetizing susceptance as seen oneach side in this case?fill inthe blank : field winding has large numberofturns of thin copper wire. a. Shunt b. Series c. Compound d. separately excited
- (9) The hysteresis losses in electrical machines reduced. a- By core lamination. b- By core isolation. c- By choosing another type of iron. (10) The eddy current losses in electrical machines reduced. d- By core lamination. e- By core isolation. f- By choosing another type of iron.4. The portion of the flux that goes through one of the transformer coils but not the other one is called. A) Average flux B) Mutual flux D) Leakage flux C) Total flux 5. The fundamental component of the magnetization current ------- the voltage applied to the core by ------ 90°: A) Lags, 45° B) Leads, 45°. D). Leads, 90°. C) Lags, 90°. 6. The ----- are resistive heating losses in the core of the transformer. A) Hysteresis losses. B) Copper losses. C) Leakage flux losses. D) Eddy current losses. 7. The total rotational losses of an induction motor are a combination of: A) Friction losses B) Windage losses. C) Core losses. D) Stray losses. 8. Induction motors are now the preferred A) absence of brushes. choice for industrial motors due to B) Small size. C) Less control requirements. D) rugged construction. 9. For an induction motor, if the synchronous speed is 1800 r/m, and the rotor speed 180rad/sec, then the slip will be: A) 5.5 % C) 6% B) 4.5% D) 4% 10. The lower the speed of an…The task is to draw or illustrate the armature winding, using the description below: -4 poles -26 conductors -double layer -simplex wave winding
- For a four pole, 16 slot armature with two coil-side/slot having wave connected progressive winding has single turn coils has simplex winding. The number of current paths is?2. Why the core losses varying with the load?The function of Copper shading band in induction type energy meter is to ensure flux produced by potential coil is exactly in quadrature with supply voltage. Select one: True False