3. What are the classifications of Core Loss and Copper Loss?
Q: 22. In a single phase transformer Eddy current losses can be found by open circuit test Select…
A: to analyze the given condition
Q: Where do an Iron loss occur? 17. What type of material is used for transformer core to reduce…
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A: TCC- Time Current Curve is a plot shows the overcurrent device's interruption time which is based on…
Q: State the differences in the shell type and core type transformer in short
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Q: In a transformer the core loss is found to be 60W at 30Hz and 90W at 40Hz, measured at the same…
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Q: (a) Write the four reasons for the voltage drop in a system. (b) Discuss about the tap changing…
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Q: 1. What is the difference between power transformer and distribution transformer in core losses and…
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Q: B/ Short answer questions 1- What is the function of instrument transformers? 2- What are the…
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Q: e core loss
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Q: The shell type transformer has less leakage flux compared to the core type transformer True False
A: In the question, choose the correct option? "The shell type transformer has less leakage flux…
Q: With the neat diagram explain the construction and working of Sumpner’s or Back –to-Back test of…
A: Step-1 Construction The Sumpner’s or back-to-back test of a single phase of a transformer…
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Q: A15 The rating of transformer is stated in terms of
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Q: In shall type of transformer windings are wound on two separate limbs of the iron core True False
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A: Transformer model Equivalent transformer circuit diagram:- Secondary referred to primary side
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: Question 1 The shell type transformer has more leakage flux compared to core type transformer True…
A: The leakage flux in core type transformer more than that of shell type transformer .Because the core…
Q: 7 In transformer, the open circuit test is used to determine the core loss. Select one: True False
A: Short circuit test in transformers is used to determine copper losses at full load.
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A: The explanation is as follows.
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A: Choose the correct option Seconday winding of transformer is made-up of __________________________…
Q: transformer the core loss is 100 watt at 40 Hz and 72 watt at 37 Hz, then eddy current and…
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Q: (9) The hysteresis losses in electrical machines reduced. a- By core lamination. b- By core…
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Q: For short circuit test on 400v/1200v transformer which voltage side will be shorted?
A: The explanation is as follows.
Q: / Short circuit test on a single phase transformer is performed to determine_____________ a.…
A: Given that Short circuit test on a single phase transformer is performed to determine_____________
Q: TRUE or FALSE: If a transformer is loaded from full-load value to half-load value, then the amount…
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Q: The shell type transformer has less leakage flux compared to core type transformer O True False
A: In this question ,we have to write that shell type transformer has less leakage flux or not compared…
Q: As a transformer core, silicon steel has lower hysteresis losses than air. Select one: True False
A: Choose the correct option The given statement As a transformer core, silicon steel has lower…
Q: A typical single-phase transformer has a certain value of voltage regulation when connected to the…
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Q: 3. If we use in transformer core (i) solid magnetic material, or (ii) nonmagnetic material, comment…
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Q: 2- What are the differences between core and shell type transformers? 3- The iron losses is constant…
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Q: Write in Briefly about circuit breaker, current transformer and voltage transformer
A: The explanation is as follows.
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- 2. Why the core losses varying with the load?Total core loss is also called as Select one: O a. Magnetic loss O b.Copper loss O C. Eddy current loss O d. Hysteresis lossMagnetic flux densities for HR steel laminations and CRGO are 1.25 T and 1.75 T respectively then ratio of weight of CRGO laminations and HR laminations (Assuming same densities is for two type of core material and total flux remains the same.) ..
- Write in Briefly about circuit breaker, current transformer and voltage transformerCombination circuit what is PT? RT? IT? Voltage Across each load?(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.
- Discuss causes of insulation failures in high voltage engineering. High voltage engineeringa core type transforem is constructed with 0.014-in. thick laminations having a uniform width of 2.75 in. If the maximum flux and flux density are, respectively, 6.2 X 10' maxwells and 8.2 X 10 maxwells per square inch and the air spaces between laminations occupy 8 per cent of the stacked core, calculate the number of laminations in the transformer. IQ.4/ choose true or false: 1. The reluctance of any core is proportional directly with the length of it and inversely with both the permeability and the cross-section area of it. 2. The number of parallel paths in wave windings is equal to twice of the number of poles. 3. In dc machines with same values of Z, N, Ø, the emf for wave winding type is more than emf of lab winding type. 4. If we insert a current in such a conductor subjected to a constant magnetic field, a movement will achieved giving the principle of electric generator.
- Assign the following statements by "Agree", or “Disagree". 1- It is better to use ferrite core instead of iron core in power transformer. 2- The no-load losses are smaller in power transformers as compared with that of the distribution transformers. 3- The core cooling in core-type transformers is better as compared with that of the shell-type. 4- The inrush current can be reduced in transformers by using hard magnetic material core. 5- The inrush current can be reduced in transformers by using soft magnetic material core. 6- The inrush current can be reduced in transformers by using hard magnetic material core with low residual magnetization. 7- The inrush current can be reduced in transformers by using soft magnetic material core with low residual magnetization. 8- Increasing the stacking factor will increase the weight of the transformer. 9- The hysteresis losses is the most effective part of iron losses in transformer. 10- The transformer design procedure is still depending on…3. Why the copper loss in the primary can be neglected, in the open circuit test? 4. Why the terms Rm and Xm significant when the transformer is loaded?Please answer with step by step math for Zin, Zout, and the load voltage. Thank you!