Open Circuit test: 3000 V 0.5 A   350 W;   Short Circuit test: 150 V 10 A 500 W   Calculate the efficiency of the transformer at   (a) full-load, 0.8 p.f.   (b) half-load, unity p.f. (c) calculate the kVA output at which the efficiency is maximum..

Q: Equivalent circuit diagram and electromotive force phasor for the idle operation of a step-up phase…

A: A transformer is a static device, it consist of two winding interlinked by common magnetic circuit…

Q: QS A 20KUA , 200/Soo usit single phax step-uptransformer Ras: primary resistanue 3.0.02 23 secondany…

A: The data for the question are: 20kVA, 200/500V,R1=0.02Ω,R2=0.04Ω,Ro=1000Ω,Xo=750Ω The magnetizing…

Q: (b) Explain why a power transformer is ideally designed so that the flux density in the magnetic…

A: The answer is provided in the following steps.   It is best with my knowledge, please refer all the…

Q: Consider a single phase 2-winding 150 kVA, 2400/240 V, 60 Hz transformer with Reg = 0.00425 N, Xeq =…

A: In this question,  Find the efficiency of the transformer If it's operated at rated current and…

Q: The following information is given in connection with tests performed on 50-kva 4,600/230-volt…

A: We have given the test performance on 50kva 4600/230volts 60cycle transformer open circuit test…

Q: Consider the following short circuit transformer as shown in figure below which operate at: the…

A: The solution is given below

Q: ← Introduction to Control... The maximum a transformer temperature rise of is 50°C. It attains a…

A:

Q: Transformation ratio in a single phase transformer is given by .. a. E, /E2 b. N, /N2 c. E, /E, С.…

A: Transformer ratio is an important ratio used in various calculations. It is the ratio of…

Q: From the short circuit test and open circuit test in #19 and #20, the equivalent circuit of a…

A:

Q: E1 3. For ideal transformer on no load E2 ... ...

A: As per our company guidelines we are supposed to answer only first one. Kindly repost other…

Q: An 100-kVA, 2500/125-V, 50-Hz, step-down transformer has the following parameters: R₁ = 1.50, X₁ =…

A: Given information is,Rated output  k VA.Induced EMF ratio  Volts.Turns ratio is   .Supply frequency…

Q: Analysis of an Ideal Transformer Circuit The turns ratio of the step-up transformer in Figure 2 is…

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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: 55 V / 220 V, 50 Hz single phase transformer, high voltage (secondary) windings are left idle and…

A: Winding resistance of the secondary referred to the primary, R2'=0.015 Ω

Q: 1. The RMS value of induced emf in the primary N1 winding is E1 =; E2 = 2. In ideal transformer on…

A:

Q: 1. A transformer transforms. (a) frequency (b) voltage (c) current (d) voltage and current. 2. Which…

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Q: A method for determining the equivalent network of a nonideal transformer consists of two tests: the…

A: Given data Open circuit test; V=4600 V rms, I=0.7 A rms and P=200 W Short circuit test; V=5.2 V and…

Q: The rating of current transformer is given as 200/5A 5P10 20VA. Assume that the secondary resistance…

A: Given CT secondary resistance =Rc t =0.12 Ω from CT data 200/5A 5P10 20VA Sn =20 VA I=5 A Fn=10

Q: We have a transformer designed to operate at 60 Hz. The voltage ratings are 4800 V rms and 240 V rms…

A: Given: A transformer is designed to operate at a frequency: f1=60 Hz New frequency is f2=120 Hz…

Q: Q2 : A) For a single phase transformer, what is the condition of maximum efficiency? B) Draw the…

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Q: If a voltage source is applied to the primary while

A: The circuit diagram of a transformer and its equivalent circuit resolving the Inductors can be drawn…

Q: A 3-phase transformer, ratio 33/6.6-kV, A/Y, 1-MVA has a primary resistance of 8.5 ohms per phase…

A: 3 phase,E1=33kv,E2=6.6kv,Rating of transformer=1MVA,Primary resistance=8.5ohms,Secondary…

Q: 5- The most effective factor on the leakage inductance of an iron-cored coil is: a) The geometry of…

A: The leakage inductance of the iron cored coil is due to the fact that the primary in not properly…

Q: Difference between sc and oc test in transformer...

A: The transformer's impedance must be known in order to determine its voltage control and efficiency.…

Q: The cross-sectional area of a transformer limb is 80 cm2 and the volume of the transformer core is…

A: Given parameters are: The cross-sectional area of a transformer limb,Ac=80cm2=80×10-4m2 The volume…

Q: Q) The weight is one of the disadvantages of . . coupling amplifier. O (a) Direct O (b) RC O (c)…

A: Due to the presence of transformer at the coupling to couple the amplifier in order to make a…

Q: An RLC series circuit connected to a 110 – volt and 50 – cycle AC source, contains the following…

A: In this question,  A RLC circuit connect with 110V , 50Hz battery.  Find the all data as per given…

Q: Q-3 A Cockcroft-Walton type voltage multiplier has ten stages with capacitances, all equal to 0.1…

A: For the given  C= 0.1 uF  V = 100kV  f = 60Hz I =5 mA n =10

Q: Q1. Describe the following related to Current Transformer (CT): Draw the equivalent circuit diagram…

A: Equivalent circuit diagram of CT in which, n=turns ratiors=resistance of 2° windingxs=reactance of…

Q: An ideal transformer is rated for a maximum power of 10VA.With a 10642 load and an unkownsource…

A: We need to find maximum load .

Q: Short discuss about transformer cooling...

A: Transformer:- A device that moves electric energy from one alternating-current circuit to one other…

Q: FN.Q5 – A Transformer has primary windings as Np = 720 and secondary windings as Ns = 144. Its…

A: (a) In the question following data is given Np=720    Ns=144 Vs=42 volt Vp can be found by following…

Q: Discuss THREE (3) important roles of the instrument current transformer (CT) and voltage transformer…

A: The explanation is as follows.

Q: 3/The core of a 300-kVA, 15000/650 V, 50-Hz, 1-ph, core type transformer has across- section of 30…

A: In the given question we note that    The core of   = 300 KVA ,  1500/ 650 V Cross section area is…

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.