An ideal transformer of rating 180:60 V shown in Fig. Q 1 below has impedance R2+j X2 2.5+j3 2 connected in series with the secondary Calculate equivalent circuit parameters with the series impedance referred to the primary side. If a voltage of 120 V ms is connected to the primary and a short is connected across the secondary, calculate the primary current, and the current through the short circuit. X2 ll + o- N N2 10 ele
Q: A Transformer with 10:1 ratio and rated at 50-kVA, 2400/240-V, 50-Hz is used to step down the…
A:
Q: Question 2. A linear transformer couples a load consisting of a 360 N R1 jwM R2 resistor in series…
A: Sol: Given data, R = 360, L = 0.25H The given circuit is the equivalent circuit of a single phase…
Q: A transformer.coupled class A amplipier drives a 16 2 speaker through a 3.87:1 transformer.Using a…
A: According to the guidelines we need to solve only the first three sub-parts. According to the…
Q: 3.3 Consider an ideal transformer with N1 = 3000 and N2 = 1000 turns. Let winding 1 be connected to…
A:
Q: A transformer, when tested on full-load, is found to have Cu loss 1.8% and reactance drop 3.8%.…
A: The transformer is a device used for the transfer of energy, the power can be increased or decreased…
Q: Parameters of a 20 kVA, 2200/220 V, 50 Hz distribution transformer, R1 = 4 Ω R2 = 0.04 Ω Rc = 3000 Ω…
A:
Q: Block Parameters: Linear Transformer Linear Transfomer (mask) (link) Implements a three windings…
A: Let V1 be the primary winding voltage and, V2 be the secondary winding voltage. The mathematical…
Q: 12. A 600 kVA, 2000/200V transformer has a primary winding resistance of 0.6N and a secondary…
A:
Q: Example 2.5 (H.W):- A single phase transformer with a voltage ratio of 2400:120 V, operates from a…
A: A single phase transformer has voltage ratio of 2400 : 120 V . The primary side supply voltage…
Q: The equivalent circuit of a 22KVA, 11700/520 V, 60HZ, single-phase loaded transformer when referred…
A: In this question we need to find a efficiency of Transformer .
Q: Consider a 4.5-kVA, 500/200 V single-phase transformer supplying full-load current at 0.8 lagging…
A:
Q: Parameters of a 20 kVA, 2200/220 V, 50 Hz distribution transformer, R1 = 5 Ω R2 = 0.04 Ω Rc = 3000…
A: S=20 kVA, 2200/220 V, 50 Hz distribution transformer, R1 = 5 Ω R2 = 0.04 Ω Rc = 3000 Ω X1 = 15 Ω X2…
Q: Problem 4 A single-phase, 10KVA, 2200/220V transformer has the following parameters: R1=4.0 N,…
A: GIVEN: KVA…
Q: Parameters of a 20 kVA, 2200/220 V, 50 Hz distribution transformer, R1=5 Q R2=0.04 2 Rc=3000 2 X1=15…
A: Dear student as per our guidelines we are supposed to solve only one question in which it should…
Q: For the ideal transformer that shown in Fig. 2.b. (a = N₂/N₁) prove that: ZL 1. Zin = 2/14342 2.…
A:
Q: A 5KVA, 240/120 V single phase transformer has the following parameters: R1 = 0.06 Q R2 = 0.015 Q X1…
A: The approximate equivalent circuit of transformer referred to primary is shown below. In that…
Q: FOR THE CIRCUIT SHOWN, WITH R1=10 Ω, R2=25 Ω, L1=90 mH, DETERMINE: A) THE VALUE INDICATED BY THE…
A: As per Bartleby policy we can answer only three subparts at a time. As you have not mentioned, so I…
Q: 15-kVA, 2400:240-V, 60-Hz, single-phase transformer has the following circuit parameters expressed…
A: According to given diagram, all parameters are given but only load current is asked. So the…
Q: Estimate its efficiency when delivering its full load output at p.t. of 0.8 lagging,
A: Given, Rating of single phase transformer is 10 kVA Maximum efficiency of transformer is 94%, when…
Q: A 10 kVA three-phase transformer is loaded with a back power factor of 0.9, while the loading ratio…
A: The given data about the three phase transformer is: Rated kVA S=10 kVA. Operating power factor…
Q: Ideal Transformer 1) Determine I1, I2, U₁ and U2 in the network of the ideal transformer below. 1.2…
A: In this question we need to find I1 , I2 ,V1 & V2 in the given circuit
Q: A 5KVA, 240/120 V single phase transformer has the following parameters R1 = 0.06 Q R2 = 0.015 Q X1…
A: 5kVA, 240/120V Single phase transformer has given parameters. Find the primary current, voltage…
Q: 1. A 200-kVA transformer has an efficiency of 98 % at full-load. If the maximum efficiency occurs at…
A: In this question , we will find iron loss, full load cu loss and efficiency at half load..
Q: (B) For the ideal transformer that shown in Fig. 2.b. (a = N₂/N₁) prove that: 1. Zin = 24/1/2 2. 3.…
A:
Q: Given a 20 kVA, 50 Hz, 2000/200 V single-phase transformer. The parameters of the transformer…
A: Given data 20kVA, 50Hz, 2000/200V transformer R1 = 0.5, R2 = 0.005, X1 = 0.5, X2 = 0.005, Rc = 500…
Q: 47. A 150-kVA single-phase transformer has a core loss of 1.5 kW and a full-load Cu loss of 2 kW.…
A:
Q: A 20-kVA, 8000:480-V distribution transformer has the following resistances and reactances: Rp= 32…
A: Note: We are authorized to answer three subparts at a time, since you have not mentioned which part…
Q: Electrical power is to be transported efficiently from a voltage source with v3(t)=100/2 cos(2r60 t)…
A: Voltage source vs(t)=1002cos(2π60t) V The transmission line of Impedance is ZTL=0.1+j0.1Ω Load…
Q: A 3-phase transformer is supplying a 60 KW Ioad at 0.8 lagging PF. The following per-phase values…
A: we need to determine the efficiency of given transformer.
Q: Assume the transformer of fig to be the ideal transformer. The secondary is connected to a load of 5…
A: We have a transformer as shown above, The secondary of this transformer is connected to a load of…
Q: The transformer described above delivers a load of 4 kVA and with a lagging power factor of 0.8 with…
A: Dear student as per our guidelines we are supposed to solve only one question in which it should…
Q: The parameters of a 200/400V 50HZ single phase transformer are given below: Zı= 0.2 + j0.4 N, Zz=…
A:
Q: A network is composed of the utility having Ssc=500MVA, and an 800KVA transformer, rated at…
A:
Q: A 5KVA, 240/120 V single phase transformer has the following parameters: R1 = 0.06 Q R2 = 0.015 Q X1…
A:
Q: Consider a 25-kVA, 400/1600 V single-phase transformer supplying full-load current at 0.85 lagging…
A:
Q: A 30-kVA, 8000/230-V distribution transformer has impedance referred to the primary of 20 + j100 N.…
A: We are authorized to answer one part of the question at a time since you have not mentioned which…
Q: Consider an ideal transformer with N1 ¼ 3000 and N2 ¼ 1000 turns. Let winding 1 be connected to a…
A:
Q: N N. I + + V. Z, VL (a) If VL = 20-N resistor, I, = 0.05 A, and N, = 50, find the number of turns in…
A: Given that VL=240VZL=20 ohmIP=0.05 ANs=50 Although secondary side current = current flowing…
Q: Parameters of a 20 kVA, 2200/220 V, 50 Hz distribution transforme R1=5 Q R2=0.04 2 Rc=3000 2 X1=15 Q…
A: The Transfomer parameters are given Then find the equivalent circuit referred to high voltage side…
Q: 3- A transformer, when tested on full-load, is found to have Cu loss 1.8% and reactance drop 3.8%.…
A:
Q: A linear variable differential transformer (LVDT) with the input voltage 3 V has the following key…
A: Answer- Given - Range = +/- 60mm Error = +/- 1.5% Sensitivity = 1.5(mV / V input) / mm Primary…
Q: Given a 20 kVA, 50 Hz, 2000/200 V single-phase transformer. The parameters of the transformer…
A: In this question we need to find a input power factor of transformer.
Q: The parametens of the aquivalent circuit of a 4-kVA, 200/400-V transformer referred to the…
A: The low voltage side is the primary side. Secondary side voltage Vs=200 Volt. Load impedance…
Q: Given a 20 kVA, 50 Hz, 2000/200 V single-phase transformer. The parameters of the transformer…
A: In this question we need to find a voltage regulation of transformer
Q: Q.29: For the ideal transformer circuit shown, find the 452 average power delivered to (1Q)…
A:
Q: 100KVA , 660/250V, 50 Hz, transformer Q1: gave O. C. T A the following results: normal voltage 900 W…
A:
Q: Primary side-reduced equivalent circuit parameters of a 25 KVA, 50 Hz, 4000/400 Volt transformer R1…
A: Given: A 25KVA, 50Hz, 4000/400V transformer in which…
Q: Parameters of a distribution transformer of 20 kVA, 2200/220 V, 50 Hz, R1 = 5 0 R2=0.04 Q Rc=3000 0…
A: Distribution transformer 20KVA , 2200/220 V, 50Hz R1 = 5 ohm, R2 = 0.04 ohm, X1 = 15 ohm, X2 =0.14…
Q: Question 1 An ideal two winding transformer with a rectangular cross-sectional area of 60cm by 20cm…
A: Answer A = 60cm x 20cm =1200cm2 = 1200x10-4 c m2 k = N2N1 = 0.02N2 = 400 V2 = 220 v I2 = 200 Acosϕ =…
Q: The equivalent circuit of a 22KVA, 11700/520 V, 60HZ, single-phase loaded transformer when referred…
A: In the transformer, Percentage voltage regulation Secondary current is given and series impedance…
Step by step
Solved in 2 steps with 2 images
- (a) An ideal single-phase two-winding transformer with turns ratio at=N1/N2 is connected with a series impedance Z2 across winding 2. If one wants to replace Z2, with a series impedance Z1 across winding 1 and keep the terminal behavior of the two circuits to be identical, find Z1 in terms of Z2. (b) Would the above result be true if instead of a series impedance there is a shunt impedance? (c) Can one refer a ladder network on the secondary (2) side to the primary (1) side simply by multiplying every impedance byat2 ?Consider a source of voltage v(t)=102sin(2t)V, with an internal resistance of 1800. A transformer that can be considered as ideal is used to couple a 50 resistive load to the source. (a) Determine the transformer primary-to-secondary turns ratio required to ensure maxi mum power transfer by matching the load and source resistances. (b) Find the average power delivered to the load, assenting maximum power transfer.For the transformer in Problem 3.10. The open-circuit test with 11.5 kV applied results in a power input of 65 kW and a current of 30 A. Compute the values for GcandBm in siemens referred to the high-voltage winding. Compute the efficiency of the transformer for a load of 10 MW at 0.8 p.f. lagging at rated voltage.
- The transformer of Problem 3.16 is supplying a rated load of 50 kVA at a rated secondary voltage of 240 V and at 0.8 posr factor lagging. Neglect the transformer exciting current. (a) Determine the input terminal voltage of the transformer on the high-voltage side. (b) Sketch the corresponding phasor diagram. (c) If the transformer is used as a step-down transformer at the load end of a feeder whose impedance is 0.5+j2.0, find the voltage VS and the power factor at the sending end of the feeder.An ideal transformer has no real or reactive power loss. (a) True (b) FalseA 23/230-kV step-up transformer feeds a three-phase transmission line, which in turn supplies a 150-MVA,0.8 lagging power factor load through a step-down 230/23-kV transformer. The impedance of the line and transformers at 230kVis18+j60. Determine the tap setting for each transformer to maintain the voltage at the load at 23 kV.
- A two-winding single-phase transformer rated 60kVA,240/1200V,60Hz, has an efficiency of 0.96 when operated at rated load, 0.8 power factor lagging. This transformer is to be utilized as a 1440/1200-V step-down autotransformer in a power distribution system. (a) Find the permissible kVA rating of the autotransformer if the winding currents and voltages are not to exceed the ratings as a two-winding transformer. Assume an ideal transformer. (b) Determine the efficiency of the autotransformer with the kVA loading of part (a) and 0.8 power factor leading.A single-phase, 50-kVA,2400/240-V,60-Hz distribution transformer has the following parameters: Resistance of the 2400-V winding: R1=0.75 Resistance of the 240-V winding: R2=0.0075 Leakage reactance of the 2400-V winding: X1=1.0 Leakage reactance of the 240-V winding: X2=0.01 Exciting admittance on the 240-V side =0.003j0.02S (a) Draw the equivalent circuit referred to the high-voltage side of the transformer. (b) Draw the equivalent circuit referred to the low-voltage side of the transformer. Show the numerical values of impedances on the equivalent circuits.A 230/460-V transformer has a primary resistance of 0.2 ohms and reactance of 0.5 ohms and the corresponding values for the secondary are 0.75 ohms and 1.8 ohms respectively. Find the secondary terminal voltage when supplying 15 A at 0.6 pf lagging.
- The primary of a current transformer takes 1 A at a power factor of 0.4 when it is connected across a 200-V, 50Hz supply and the secondary is on open circuit. The number of turns on the primary is twice that on the secondary. A load taking 50 A at a lagging power factor of 0.8 is now connected across the secondary. What is now the value of primary current?A 1200/240-V practical transformer has an equivalent impedance of Zeq - 4.5 * j 6 ohms referred to the high-voltage side. What is the magnitude (in ohms) of its equivalent impedance referred to the low-voltage side?An ideal auto-transformer has its secondary winding labelled as a, b and c. The primary winding has 100 turns. The number of turns on the secondary side are 400 turns between a and b and 200 turns between b and c. The total number of turns between a and c is 600 turns. The transformer supplies a resistive load of 6 kW between a and c. In addition, a load of impedance 1,000 cis (45°) ohms is connected between a and b. For a primary voltage of 1,000 V, find the primary current and primary input power.