X = 9% X-16% X=20% X = 9% X=120 Ω S 48 MW +j64 Mvar 1 90 MVA 20 kV 80 MVA 20/200kV T2: 80 MVA 200 20 kV G90 MVA 18 kV Line: Load 200 kV 200 kV Τι T2 Line Load

Q: a. prove that the circulating current value decrease with the increase in the load between the tv…

A: Two or more transformers can be linked in parallel with an existing transformer to deliver a load…

Q: 1. How do you measure three phase line currents by using two current transformers? Draw the…

A: The diagram for the three-phase system and the two current transformers are drawn below, Consider…

Q: b) A fault occurs at bus 2 of the network shown in Figure Q3. Pre-fault nodal voltages throughout…

A:

Q: Please enter your answer in the blank's: Voltage at load bus, VLoad = ° p.u. Motor apparent power,…

A: One line diagram of a three phase system  From circuit

Q: Q2. Consider the single-line diagram of the power system shown in Figure Q2. Equipment ratings are:…

A: In this question we need to find a per unit reactance after finding per unit value we need to draw a…

Q: Q4/For the three-phase power network shown in Figure. the various components are: G1: 100 MVA, 0.30…

A: It is given that: Line voltage(VL)=110 kV Generator G1: 100 MVA, 0.30 pu reactance Generator G2 : 60…

Q: A single-phase power system consists of a 600-V 50-Hz generator supplying the circuit shown in…

A: The given circuit diagrams (1-a) and (1-b) are shown below: It is given that: V=600 Vf=50…

Q: The main advantage of A.C. systems over D.C. systems is: O a) transformers can be used to change…

A: The transformer only works on AC and cannot be operated on DC. A transformer is a device that…

Q: 1) What are the advantages and disadvantages of 3- phase transformers over 3 single-phase bank of…

A: 1.) The advantages of 3- phase transformers over 3 single-phase bank of transformers are as follows:…

Q: A Step-down transformer is given and calculate 5:1 120 V 60 Hz V2 1 k? i. Peak load and D.C. load…

A: Since it is a step down transformer therefore V2<V1 and number of turns in primary will be…

Q: Can three single-phase transformers be connected in Y-Y with substractive polarity, in such a way…

A: Three single-phase transformers are connected in Y-Y with subtractive polarity, such that line to…

Q: roblem 1. What does it mean by a transformer vector group Dy11 and impedance voltage 3.9%? 2. What…

A:

Q: b) Sketch four (4) types of possible connections for a three-phase transformer bank.

A: Three-phase transformer bank is in the transmission line and is studied in the power electrical…

Q: Three zones of a single-phase circuit are identified shown in Figure below. The zones are connected…

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Q: The transformer secondary is connected in star supplies power to purely resistive load with one…

A:

Q: For a single phase network shown in the figure below, work in per-unit with 200 VA & 250 V as base…

A: In this question we need to find a load current of the given system.

Q: 1- 3-phase 25-kVA 34,5/0,48-kVu distribution transformers are connected in A-Y. Open-circuit test…

A:

Q: Q. No. 01 [CLO1-C3]: Draw an impedance diagram for the electric power system shown in Figure-1,…

A: We can obtain the impedance diagram by using below steps: -  The base voltage VBG1  on the LV side…

Q: The _____________________ of transformers are neglected to draw the reactance diagram. a-Shunt…

A: This is based on the fill the blank  The _____________________ of transformers are neglected to draw…

Q: Subject: Electrical Engineering Subject: Power System Analysis Instruction: Use handwritten…

A: 1. Phase Voltages:Line voltage A (reference): 4160 V∠0° (with 30° phase shift considered, ignored…

Q: Q.3 Power Systems - Basics of Power Syst... A power system is represented by a single line diagram…

A: Power system- Generating rating = 40 MVA, 25 KV, XG=0.2 p.u. Transformer T1 rating=33/220 KV

Q: 3-phase 50-kVA 31,5/0,4-kV₁L distribution transformers are connected in A-Y. Open-circuit test was…

A: Voltage regulation in a three-phase transformer refers to the ability of the transformer to maintain…

Q: In a semiconductor it is observed that 80% of the current is carried by holes and 20% by electrons.…

A:

Q: G₁: T₁: T₂: G₂: Line: Load: G₁ 90 MVA 80 MVA 80 MVA 90 MVA 20 kV 20/200 kV 200/20 kV 18 KV 200 kV…

A:

Q: Q1 (а) In Figure Q1(a), four identical 10 MVA, 11 kV, 50 Hz three-phase generators, A, B, C and D,…

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Q: 9. The generator power is always the maximum load power. c. equal b. less than d. greater than or…

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Q: 2.2. The figure below shows a radial transmission system with a generator having a  per-unit voltage…

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Q: Three single phase transformers, each rated at 12kVA, 120/240V, 60Hz, are connected to form a…

A: Given data : Each rating of transformer =12 KVA Power factor =0.8 lagging

Q: The reactance of a generator designated X" is given as 0.25 per unit based on the genera nameplate…

A:

Q: Briefly explain about single phase and three phase power supply with diagrams.

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Q: The reactance of a generator is given as 0.2 per unit based on the generator's nameplate rating of…

A:

Q: Three single-phase distribution transformers, each rated for 18 kVA, 20000/220 volts, are connected…

A: Three single-phase distribution transformers are connected in a Dy three-phase bank. Rated power…

Q: Which option is correct? Voltages that are across a generator’s windings are calleda. phase…

A: The objective of the question is to identify the correct term for the voltages that are across a…

Q: T 2 (3 T₂ (4) Machine 1 FLY Machine 2 Krossy 147 YA For the three-phase power system with…

A: Step 1: Step 2: Step 3: Step 4:

Q: Three phase transformer having supply voltage 15 Kv (Line voltage). Determine the secondary phase…

A: In the Delta type of winding connection, the line voltage and phase voltage both are the same but…

Q: 2. The one-line diagram of a power system is shown in the figure. The three-phase power and…

A:

Q: The 240 kV transmission line is intended to be connected to a 220 kV transmission system through an…

A: The above question is related to a single-phase autotransformer.Given that a 240 kV transmission…

Q: ) Consider a 3-phase, 33 kV transformers with N1:N2 = 900:150. Calculate the secondary line voltage…

A: a 3-phase, 33 kV transformers N1:N2 = 900:150. Calculate the secondary line voltage on no load…

Q: A 3-phase, 50 Hz,2000 kVA, 2300 volt alternator gives a short circuit current of 600 A for a certain…

A:

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.