The following results were obtained on a 50 kVA transformer.  Open circuit test -  primary voltage, 3300 V; secondary voltage, 400 V; primary power, 450 W.    Short-circuit test -  primary voltage, 124 V; primary current, 15.3 A; primary power, 550 W; secondary current, full-load value.    Calculate the efficiencies at full load and at half load for 0.8 power factor.

Q: 6. Consider the circuit shown in the figure below: 2 ΚΩ www 20 mA 1 + με 35 ΚΩ 5 V

A: Given data, Given circuit diagram is,

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A:

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A: Given circuit:

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Q: Problem: Write down the mesh current equations for the circuit shown in the figure below and…

A: Solution:By applying KVL to the two meshes, we get5 I1 + 2(I1- I2)=1010 I2 + 2( I2- I1)=-50.

Q: Find the current I if both diodes are identical. Voltage V = 0.8V and let the reverse saturation…

A:

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A:

Q: 9. Consider the following digital circuit. The output Y of the circuit is: I A B C- D E a) Y= (A+B)…

A: Given digital circuit,

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Q: Done El + @ Estimate the percentage change of power for a DSB-SC AM system when the value of the…

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Q: Q6. (a) For two sinusoidal voltages v₁ = 30 sin(at) V and v₂ = 30 sin(wt + 0.25m) V, evaluate the…

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Q: Q24 (6) A shunt motor supplied at 230 V DC runs at 900 RPM when the armature current is 30 A. The…

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A: It is given that:

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A:

Q: How much kWh is consumed by a 4000W electronic circuit operated for 5 hours and 30 minutes? Select…

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Q: 3.      a) With neat diagram, State the principle of RTD sensor…

A: b) It is given that: R=100 ohm t=250C α=0.00392

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Q: A 0.5uF capacitor has voltage waveform v(t) as shown in following figure, plot i(t) as function of…

A: Given- Capacitor, C= 0.5 μF Voltage Max. = 40 V To find- Plot of current, i(t) =?

Q: A 3-phase induction motor runs at 3% slip and develops mechanical power equal to 10 kW. The air gap…

A:

Q: D) Explain operation principle and feedback type of Circuit 'D'. What is its advantage?

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

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Q: Example: Determine the current in the 5 2 resistor shown in the circuit below 20 V 10 A V₁ 20 ww 30…

A: Given circuit diagram, I5ohm =?

Q: Calculate the capacitor current using Norton's theorem. 80/60° j30 Ω 20Ω 70Ω -j70 ΩΙ 60/-30° V voor…

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Q: Q3) A wave is given by y= 8.5 sin [0.8x-5.4], Find (a) The wavelength, (b) the angular frequency,…

A:

Q: 9. A three-phase overhead transm potentials across the first and se (i) the line voltage (ii) the…

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Q: The total power in an Amplitude Modulated signal if the carrier of an AM transmitter is 800 W and it…

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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.