A 2300/208-V 500-kVA 60-Hz single-phase transformer was tested by means of the open-circuit test (on the low-voltage winding) and short-circuit test (on the high-voltage winding). The test data obtained are: Open-circuit test: Voc = Short-circuit test: Vsc = 95 V, 208 V, Ioc = 52.5 A, Isc = 217.4 A, Poc = 3800 W Psc = 6200 W %3D %3D OC %3D %3D SC Calculate a. the efficiency of the transformer at rated kVA and half-rated kVA, when the power factor is 0.866 lagging; and

Q: AC input= 120V rms. Transformer Ratio = 15:1. Reference Voltage = 6.3V. Rload = 56 Ohms. Ambient…

A: The circuit is given as The peak voltage at the primary side of transformer isVmp=2×120Vmp=169.7V

Q: Q2. A 25-kVA, 2300:230-volt transformer is subjected to open- and short-circuit tests. The…

A: No load (or O.C) power factor cos θo =203/(2300*0.110)=0.80∴ θo = cos-1 0.80          = 36.86ºsin…

Q: A 15 KVA, 2400: 240/120 V, 60 Hz, the two-winding transformer is to be reconnected as a 2400:2520 V…

A:

Q: 1) What happens to the waveform of the magnetizing current of a power transformer as the transformer…

A: Dear student, Since you have posted multiple questions, we will provide the solution only to the…

Q: A method for determining the equivalent network of a nonideal transformer consists of two tests: the…

A: Given data Open circuit test; V=4600 V rms, I=0.7 A rms and P=200 W Short circuit test; V=5.2 V and…

Q: 4. When supplied at 230 V, 50 Hz, a transformer's no-load current is 5.0 A at 0.3 power factor. The…

A: Transformer is a static device which is used to step up/down the voltage/Current level. It is also…

Q: 3.16 A single-phase, 50-k VA, 2400/240-V, 60-Hz distribution transformer has the following…

A: It is given that:

Q: A 15 KVA, 2400: 240/120 V, 60 Hz, the two-winding transformer is to be reconnected as a 2400:2520 V…

A:

Q: (Q1f, Draw and compare the per-phase electrical equivalent circuits of a transformer and of an…

A: To draw and compare the per-phase electrical equivalent circuits of a transformer and of an…

Q: draw a three-phase transformer equivalent circuit and also explain how formulas were derived

A: This is a 3 phase transformer equ6 circuit.

Q: 1. Explain why transformer saturation occurs at a lower voltage value when the frequency of the ac…

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Q: AC power of 100 volts and 1 ampere enters a transformer with 2 coils and exits the transformer with…

A:

Q: Simulation of an Inverter Type Single- Phase Arc Welding Machine. By using multisim or proteus.

A: We have to Design and Simulation of an  Inverter Type Single-Phase Arc Welding Machineusing…

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: The rating of a current transformer is expressed as 20VA/10/15. Assume that the secondary resistance…

A:

Three-Phase Transformers

Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.

Transformer

Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.