A 400:1 CT is designed to be used with a secondary burden Rb = 4 The core is constructed from transformer steel which is normally operated at a maximum flux density B = 0.95 Tesla. The cross-sectional area S of the CT core is 120cm2. If the system X/R ratio is 12, calculate the maximum fault current Ip that may be transformed by the CT without a risk of going into saturation?

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: 120 V 60 Hz 0.25 A HH" I C₁ 470 μF www.1 RL 1 ΚΩ

A: Given Circuit:   To determine: The transformer has a turns ratio of 9.45, what is the dc load…

Q: e following problem must be solved analytically, without the use of mathematical formulas or…

A: Given data, Cross sectional area A=5 cm2 =5×10-4 m2 Flux density B=108 T RMS voltage V = 120 V…

Q: A 400/200 V, single-phase transformer has primary winding resistance of 0.20 and secondary winding…

A: Given a 400/200 V, single phase transformer has, Primary winding resistance, R1=0.2 Ω. Secondary…

Q: If the turn ratio of a step-up transformer is 1:15 and the full-load secondary current is 300 A, the…

A:

Q: During short-circuit test, iron losses are negligible because the voltage applied on primary side is…

A: let us arrive at the right answers in each case by analyzing the given statement as shown below.

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: Which of the following voltage (V), current (1), ar turns (N) characteristics apply for a step-up…

A: In this question we will define step up transformer....

Q: A single phase 500/200 V ,55HZ transformer has an efficiency of 98% at full-load. Determine the…

A: Given input frequency = 55 Hz and no load terminal voltage = 200 volts full load terminal voltage =…

Q: It is desired to have a 4.13 mWb maximum core flux in a transformer at 110V and 50 Hz. Determine the…

A:

Q: A 400/230V, 50Hz, single phase  transformer has 200 turns on high  voltage side. Find turns ratio,…

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

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 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: The voltage per winding of the 220V/12V, 60 Hz single phase core transformer is 1V. If the maximum…

A:

Q: A core type transformer operates on 400 / 230 volt, 55 Hz supply. If the cross-sectional area of the…

A:

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

A: In this question we need to find a voltage regulation for the given condition.

Q: The hysteresis loop of the core material of a transformer should have (a) a large area (b) a small…

A: When a transformer is in use, its core is taken up by many complete magnetization cycles. During…

Q: a buck converter, what are the benefits and disadvantages if the changes of duty cycle is drastic…

A: Duty cycle : Duty cycle in the power system is defined as the ratio of the time during which a load…

Q: What is the turns ratio of the transformer needed to match a 1 k source resistance to a 160 load?…

A: We need to find out the turn ratio for given load resistance

Q: The main difference between transformer and dc motor is O The transformer has a core O The…

A:

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

A: In this question,  Choose the correct options What is power factor to become zero voltage…

Q: The power is transferred by induction and conduction in autotransformers               2-No ­load…

A: Check the given statements are true or false? All statment are related to the transformer.

Q: The amount of inrush current in the primary of a transformer is limited by the........, A- amount of…

A:

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

A:

Q: A transformer with a 10/1 turns ratio has a maximum flux density of 60,000 lines/in2, when the…

A: EMF E = 4.44×frequency×Flux in the core×per phase turns. But flux = flux density× area of the core.…

Q: The iron core in a transformer has the purpose of O decreasing the reluctance of the magnetic path…

A:

Q: A single-phase transformer is required to step down the voltage from 1100 V to 400 V at 50 Hz. The…

A: Single phase transformer:- It is a type of the transformer that operates on the single phase AC…

Q: A voltage multiplier has 12 stages Capacitances, all equal to 0.08 μF. The supply transformer…

A: Given:No. of stages=12C=0.08 μFf=100 HzVm=150 kVIL=0.006 A

Q: Ideal transformer core has permeability equal to Select one a Non-zero finite c. Negative G Intinite

A: Ideal transformer core has permeability equal to

Q: A transformer core is laminated to 1. Reduce the copper loss 2. Reduce the eddy current loss

A: The solution is provided in the following section.

Q: A voltage transformer in Figure 8 has 1,500 turns of wire on its primary winding and 500 turns of…

A: The number of turns on the primary side, The number of turns on the secondary side, The voltage…

Q: choose in the given losses changes with the load in the transformer? Option 1: None of these Option…

A: Consider that the losses in the transformer are the core loss and the copper loss.

Q: Which of the following are power losses that can occur in a practical transformer (non-ideal)?…

A:

Q: a)The voltage per winding of 220V/12V, 60 Hz single phase core transformer is 1V. If the maximum…

A: The solution can be achieved as follows.

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

A:

Q: 2. When the turns ratio of a transformer is 20 and the primary ac voltage is 12 V, the secondary…

A:

Q: Which of following is a variable loss in a transformer? O Constant loss O Eddy current Hysteresis…

A: In transformer there is 2 type of loss present. 1. Contact loss 2. Variable loss.

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…

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.