A transformer is needed that will cause an actual load resistance of 25 Ω to appear as 100 Ω to an ac voltage source of 240 V rms. Draw the diagram of the circuit required. What turns ratio is required for the transformer? Find the current taken from the source, the current flowing through the load, and the load voltage.

Q: A transformer has an efficiency 80% ,with primary voltage Vi is 300V and a load R=2k2. Pou= 700kw,…

A:

Q: In a transformer having a 10 to 1 ratio, the copper losses in the primary are 15 per cent less than…

A: The transformer problem  can be solved easily.

Q: When a transformer takes a current of 0.8 A and its primary is connected to a 235 V, 50 Hz supply,…

A:

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: 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: Find the VL (peak) of the center-tapped transformer shown below. Assume ideal transformer and ideal…

A: A full wave rectifier with center tapped transformer is given. In positive half cycle diode D1 will…

Q: 23/A) A 1000-VA 230/115-V transformer has been tested to determine its equivalent reunt. The results…

A:

Q: Volt ac voltage is applied to the primary input of a transformer. A load of B ohms at the output it…

A:

Q: The primary of a current transformer takes 1 A at a power factor of 0.4 when it is connected across…

A: Given: N1=2N2Io=1 Acosϕo=0.4I2=50 Acosϕ2=0.8 lag

Q: t maximum effi

A: Given: To calculate the load current at maximum efficiency using given values: winding losses = 50 W…

Q: 11) Which phenomenon is used in transformer to change the values of alternating voltages and…

A: Given that Which phenomenon is used in transformer to change the values of alternating voltages and…

Q: transformer as shown in the figure given below. transformer is connected to form an auto A…

A:

Q: 2,99 A 200/100 V, 50 Hz transformer is to be excited at 40 Hz from the 100 V side. For the exciting…

A: According to the question we have to find the value of applied voltage.

Q: In an ideal transformer having a 1 to 2 turns ratio, the secondary: O a) current is half the primary…

A: In case of ideal transformer, transformer used for transfer the power and stepping up and stepping…

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: (d) Assuming zero core reluctance, calculate the magneto-motive force (mmf) produced by the primary…

A:

Q: You have been assigned to select a transformer to supply a peak power of 100 kW to a load that draws…

A: Given a transformer is supplying the peak load of 100 kw for small time and very less load in the…

Q: öialg äbäi A 220/1100 V transformer takes no- load current of 5A and absorbs 200 W. What is no load…

A: In this question , single phase transformer is given...No load current is given..No load losses…

Q: A step-up transformer is designed so that the output of its secondary winding is 2,200 V (rms) when…

A: Given: A step up transformer is designed to have V1=210 VV2=2200 V

Q: Q2/The primary of a certain transformer takes 1 A at a power factor of 0.4 when it is connected…

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

Q: a) As depicted in the figure, input voltage is 120 Volts (RMS) and diode drops are 0.7 Volts. Design…

A: According to the question,  (a) As depicted in the figure, input voltage is 120 Volts (RMS) and…

Q: 1. An ideal transformer with a 450 turn primary connected to a 600 V, 60 Hz supply line needs to…

A: Number of turns in primary N1=450. Primary voltage V1=600 V. Secondary voltage V2=240 V. Load…

Q: The table below shows some performance parameters of a certain power transformer. Full-load voltage…

A:

Q: 32. Solve for following if the 3-phase transformer configuration in Figure 6 on Worksheet 3 has the…

A: Assuming high voltage is connected to left windings. on primary side consisting of two coils in…

Q: A H.W.R. uses 4 : 1 transformer and a diode of internal resistance 100. If load resistance is 5000…

A: Given a half wave rectifier uses, Transformer with turns ratio, Np : Ns= 4 : 1 Internal resistance…

Q: A 100/500 V, 1 KVA, 50 Hz transformer was put through open and short-circuit tests to find its…

A: Given: A 100/500 V, 1 KVA, 50 Hz transformer was put through open and short-circuit tests to find…

Q: If I build a transformer and I have the following data: Primary voltage = 127V Number of turns in…

A:

Q: Assume 120Vrms is applied to the transformer primary (from P1 to P2). What is the expected secondary…

A: Solve the problem

Q: Explain the difference between transformer equivalent circuit and IM equivalent circuit.

A: Equivalent circuit- An equivalent circuit is a simplified circuit (or model) that is easier to…

Q: Due to the increase in load, what change you saw in the transformer’s output power and the…

A: Electrical machines can be either generator or motors and transformers. They can be either Ac…

Q: Q10) For the transformer shown in Figure below, determine (i) The turns ratio of the transformer…

A: A transformer has two windings - the primary and the secondary. The ratio of the number of turns in…

Q: A 220/1100 V transformer takes no- load current of 3A and absorbs 150 W. What is no load power…

A: A 220/1100 V transformer has, No load current (Io)= 3 Amp No load power (Po)= 150

Q: A Transformer has primary windings as Np = 750 and secondary windings as Ns = 125. Its secondary…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: 02/A/ What are the conditions for satisfying parallel operation of single phase transformer? Deduce…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Problem 4 Assume that a single-phase, two-winding transformer has a core loss of 1500 W. The…

A: As per the guidelines of Bartleby we suppose to answer first three subpart only for solution of…

Q: Assume that a single-phase, two-winding transformer has a core loss of 1500 W. The secondary (i.e.,…

A: As per the guidelines of Bartleby we suppose to answer first three subpart only for solution of…

Q: A major application of transformer is to increase voltage before transmitting electrical energy over…

A: Mainly considering the application of transformer used to step up voltage for use in transmission of…

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.