Two single-phase transformers work in parallel on a load of 750 A at 0.8 p.f. lagging. Determine secondary voltage and the output and power factor of each transformer. Test data are: Open circuit: 11,000/3,300 V for each transformer Short circuit: with h.t. winding short-circuit Transformer A: secondary input 200 V, 400 A, 15 kW Transformer B: secondary input 100 V, 400 A, 20 kW

Q: 1. If a 0.6 accuracy class current transformer has a phase angle of + 10 at 100% rated current, the…

A: Ans.(1). Value of 'β=10'

Q: Question- For a single phase 440/110 V transformer having input on primary side at no load is 100 W.…

A:

Q: What is the material commonly used for construction of transformer core? Draw the B- H curve for…

A:

Q: what are the factors affecting the dielectric strength of transformer

A: Mineral oil used as oil in transformer provides high insulating properties. It also provides cooling…

Q: 23. The secondary windings of a 60 Hz transformer has 50 tums. If the induced voltage of this…

A:

Q: Explain O.C. & S.C Tests of a l-phase transformer?

A: According to the question we need to explain the O.C and S.C test of 1- phase transformer?

Q: Flag this question for future reference What is the test that can be conducted in the laboratory to…

A: In this question we have to determine in which test transformer impedance drops are dependent on…

Q: Ideal transformer with primary of 200 turns and secondary of 100 turns. The primary is connected to…

A: secondary voltage = primary voltage×secondary turnsprimary turns. current in load = power delivered…

Q: An 11,000/230-V, 150-kVA, 50-Hz, 1-phase transformer has a core loss of 1.4 kW and full-load Cu loss…

A:

Q: 15V R₁ = 7 MM- ли R₁₂ = 5 ³R₂ = R₁ = 3 un ли R₂₁₂ = 1

A:

Q: 1. What is the difference between power transformer and distribution transformer in core losses and…

A: Power transformers are generally high voltage transformers which are used stepping up and down of…

Q: A single phase transformer with the maximum value of flux 0.0991wb and an effective cross sectional…

A:

Q: What are the conditions for the parallel operation of 1-phase transformers

A: In this question,  We need to the conditions for the parallel operation of 1-phase transformers?…

Q: Identify, which component of no load current supplies hysteresis loss, in a practical transformer?…

A: In the question choose the correct option?    which component of no load current supplies hysteresis…

Q: (a) find the eddy current frequency of 50Hz (b) find the hysteresis loss in watt at a frequency of…

A:

Q: 7. What is the no-load voltage when the full-load secondary voltage is 108 V and transformer…

A: Given: In a transformer, Full load secondary voltage V2fl=108 V. Transformer regulation VR=10%.

Q: Draw the phasor diagrams for the following 3-phase components: 1-Transformer: exact equivalent…

A:

Q: Q.3. Why is the transformer core laminated?

A:

Q: 2. Solve I using Nodal analysis 5/0° A 2Ω j1Q 20/-90° V (+ -j2 Q 21 4Ω

A:

Q: The eddy-current loss in a 6.9 kV, 50 Hz transformer is 220 W. What will be the eddy-current loss of…

A:

Q: A 4500 V / 360 V, 50Hz single-phase transformer is to have an approximate e.m.f. per turn of 25 V…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: 12V Problem #5) Given the following circuit: Loc 60 80 160 www a) Determine the current Ipc that…

A: Steady state DC  condition we need to find out Idc,Vw,Vx,Vy,VL

Q: When rated voltage at rated frequency is applied to a single phase transformer the hysteresis and…

A:

Q: How is the EMF of a three phase transformer

A: TRANSFORMER: The transformer transfers power from one circuit to another circuit without a change…

Q: A 22.5-kVA single-phase transformer is tested with a true-RMS ammeter and an ammeter that indicates…

A: Given data:Transformer capacity =22.5True-RMS reading =94APeak reading =204A

Q: current supplies hysteresis loss, in a practical transformer? a. None of these b. IM c. IC d. I0

A:

Q: A 200-kVA, 3-phase, 50-Hz transformer has a voltage ratio (line voltages) of 33/11-kV and is…

A: Given:Rating of transformer=200kVAThe transformer is delta/star connectedvoltages are given as…

Q: A) In any transformer's core, we have two types of losses, what are they? B) Explain why the core…

A: A) In any transformer core there are 2 types of core losses. They are     1) Hysteresis Loss.     2)…

Q: 1. Explain why transformer saturation occurs at a lower voltage value when the frequency of the ac…

A:

Q: of the core is 30 cm² and maximum flux density is 1.3 Wb/m² , then the number of turns in primary…

A:

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: Iron loss in a transformer: a) is dependent on load current. Ob) is a function of the resistance of…

A: Answer: is a function of eddy current and hysteresis effects in the transformer core. Explanation:…

Q: Draw the scheme of a single-phase transformer with two secondary windings and mark the main symbols…

A:

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: 2. What are the necessary conditions for successful operation of two single- phase transformers?

A: As per Bartleby guidelines we are allowed to solve only one question, please ask the rest again.

Q: transformer the core loss is 100 watt at 40 Hz and 72 watt at 37 Hz, then eddy current and…

A: In this question , we have to find out Eddy current losses and hysteresis losses...

Q: 5. Transformer cores are laminated in order to (a) simplify its construction (b) minimise eddy…

A: Transformer is a static device which is used to step up /down the current or voltage level without…

Q: 1. A 2.4 kVA single phase ideal transformer has 150 turns on the primary and 75 turns on the…

A:

Q: Find the elements of the equivalent circuit relative to the secondary of a single-phase transformer.…

A: It is given that: No-load primary voltage=V1=200 VNo-load secondary voltage=V2=400 VFrequency=f=50…

Q: Which of following is a variable loss in a transformer? O Constant loss O Eddy current Hysteresis…

A: In transformer there is 2 type of loss present. 1. Contact loss 2. Variable loss.

Q: formula for determining the power of a single-phase transformer

A: The objective of the question is to determine the formula for calculating the power of a…

Three-Phase Transformers

Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.

Transformer

Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.