Example 2-2. The equivalent circuit impedances of a 20-kVA, 8000/240-V, 60-Hz transformer are to be determined. The open-circuit test and the short-circuit test were performed on the primary side of the transformer, and the following data were taken: Open-circuit test (on primary) Short-circuit test (on primary) Voc = 8000 V Vsc = 489 V loc = 0.214 A Isc = 2.5 A Voc = 400 W Psc = 240 W

Q: Q.1: The following data refer to a single-phase trans former: Turn ratio (2:1). R1=2.4n, X-5.5 n.…

A:

Q: If the secondary side of a dual-voltage single phase transformer, as per figure 1,  were to be…

A: The secondary side of a dual-voltage single phase transformer, as per the figure given in  the…

Q: Answer by true or false * True False while conducting short- circuit on transformer the low voltage…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: B. A 10-kVA, 2300/230-V transformer is to be tested to determine its excitation branch components,…

A: Given :  kva = 10  V base= 2300 Voc= 2300 v Ioc= 0.2 A Poc= 40 w Vsc= 48 v Isc= 5 A Psc= 180 w

Q: The circuit for a 20-KVA, 220/3960 V, 50-Hz transformer is shown in Figure (1). The open- circuit…

A:

Q: During routine tests of a three phase transformer, measurements of DC resistance between winding…

A: During Routine tests of Three phase Transformers ,Measurement of DC Resistance between winding…

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

A: Transformer is the static device it work on the principle of faraday law of mutual inductance. It…

Q: What is current transformer? 2 difference between current and potential transformers.

A: A step-up transformer that lowers the current while raising the voltage is a current transformer.…

Q: In a fixed-bias configuration, the voltage level of VGS is equal to O a. Vs O b. none of these O .…

A: In this question,   We need to choose the correct options In a fixed bias, the level of VGS   is…

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: i need the answer quickly

A: In this question we need to find a equivalent impedance referred to primary side and draw it…

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: 1. A 2.4-kVA, 2400/240-V, 50-Hz, the step-down transformer has the following parameters: : RH =…

A: Rated kVA is  kVA.Induced EMF ratio is  V.The high voltage to low voltage winding turns ratio is…

Q: What is the relationship between turn ratio and voltage of transformer?

A: In this question we will discuss about the relationship between turn ratio and voltage of…

Q: DC 200 V is applied to the primary of a transformer with a conversion ratio of 1/5. From secondary…

A: The winding functions as a short circuit through the source terminals of DC when a DC voltage is…

Q: Certain transformer has full-load copper losses of 500 W. What is value of copper loss at half load:…

A: Given data: Pc1=500 W

Q: losses =los ses 1. Maximum efficiency of transformer is when 2 At maximum effciency load current l2=…

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Q: Draw the construction diagram of the core type transformer

A: In core type transformer both the primary and the secondary windings are placed on the side limbs…

Q: A normal transformer has a nominal 60 kVA. The nominal primary and secondary voltages are 600 V and…

A: Given data : Transformer rating P=60 kVA Primary voltage V1=600 V Secondary voltage V2=120 V

Q: What is the benefit of the electrical transformer in the case of load and in the case no load?

A: Discuss the benefit of the electrical transformer in the case of load and in the case no load?NoteA…

Q: A single-phase 100 kVA, 2400/240 V, two-winding transformer will be used as a step-down…

A: single-phase Two winding transformer step down  100 kVA, 2400/240 V,  auto-transformer Step down…

Q: The idle operating current of the three-phase transformer connected to Yy0 (Y-Y) with a power of…

A: Given transformer with rating 6300 KVA and 15/0.4 KV The no load current I0=2.91No load active power…

Q: he ratings of a single-phase three-winding transformer are as follows: *primary winding: 300 MVA,…

A: Base MVA=300 MVARated primary side voltage=14 kV→terminal 1Rated secondary winding voltage= 200…

Q: The equivalent circuit impedances of a 20-kVA, 8000/240-V, 60-Hz transformer are to be determined.…

A:

Q: 3.6. A 60-KVA, 4800/2400-V single-phase transformer gave the following test results: 1. Rated…

A: Given that: Single phase, 60 kVA, 4800/2400 transformer. OC test: Done at low voltage side,…

Q: The core loss of a single phase, 230/115 V, 50Hz power transformer is measured from 230 V side by…

A: Given- 230/115 V, 50 Hz power transformer, Core loss=1050 W, for 230 V, 50 Hz input, Core loss=500…

Q: 3.16 A single-phase, 50-k VA, 2400/240-V, 60-Hz distribution transformer has the following…

A: It is given that:

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: In a load test on transformer the no load voltage is 240V. The terminal voltage drop is 225V on…

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Q: Figure Q1 shows a transformer core that has the primary winding (Np) of 500 second winding (N,) of…

A: Introduction: A transformer is a device that steps up or steps down the level of voltage without…

Q: A single phase transformer has a percentage voltage regulation of 9. The input voltage of the…

A: By transformer rule V1/V2 = N1/N2 Given V1 = 178v , N1/N2= 2

Q: A 15-KVA, 2400/240-V transformer is to be tested to determine its excitation branch components, its…

A: The rated KVA of the transformer, S=15 KVA The voltage ratio, 2400/240 V, Results of open circuit…

Q: Three-phase, 50 Hz 34500/10500 T/S ​​connected transformer single-phase visible on the side of the…

A: There is confusion in the transformer connection T/S it would be D/S that is delta-star. Hence,…

Q: A single-phase transformer has a voltage ratio on open circuit of 7900/660 V. The primary and…

A: Transformer: It is a static device that is used to step up and step down the voltages.

Q: For the transformer shown in Figure Q3 (a), Determine the following. i. The turn ratio ii. The…

A: We know the current and voltage ratio for transformer , we will use that ratio to calculate the…

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: 2. What will happen when the secondary of a current transformer is disconnected from its load while…

A: A transformer is an electrical machine which is used in AC circuit to either step up or step down…

Q: A 15-kVA, 2400/240-V transformer is to be tested to determine its excitation branch components, its…

A: Solution a)- Equivalent circuit of the transformer referred to high voltage side-

Q: List the main components of the transformer and explain briefly the function of thosecomponents.

A: The transformer is an electrical device used to transfer power from one circuit to another circuit…

Q: What is the difference in connection between a voltage transformer and a current transformer?

A: We know that the electrical instruments are not directly connected to the control apparatus or the…

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.