Theory about the open and short circuit test about the transformer?

Expert Solution

Manojponduru answered 4 months ago

What are the procedures and purpose of Open Circuit Test and Short Circuit test with the...

What are the procedures and purpose of Open Circuit Test and Short Circuit test with the aid of suitable diagrams.

A 6kVA, 220 /24V, 50Hz single-phase transformer has the following test results: Open circuit test (measured...

A 6kVA, 220 /24V, 50Hz single-phase transformer has the following test results: Open circuit test (measured form high-voltage side): V(oc) = 220V, I(oc) = 5A, P(oc) = 150W Short circuit test (measured from low-voltage side): V(sc) = 10V, I(sc) = 28A, P(sc) = 250W Find the per-unit approximate equivalent circuit parameters of the transformer.

A single-phase transformer of 3 kVA, 60 Hz, has a voltage ratio on open circuit of...

A single-phase transformer of 3 kVA, 60 Hz, has a voltage ratio on open circuit of 240 / 120 V. The primary and secondary resistances are 0.25 Ω and 0.05 Ω respectively, the corresponding leakage reactance being 0.75 Ω and 0.18 Ω. The transformer delivers current to the load at a 0.9 power factor lagging. Determine the voltage across the load. Determine the power dissipated by the load. Determine percentage voltage regulation referred to the secondary...

what is the short circuit current (Isc) and open circuit voltage (Voc) and how can I...

what is the short circuit current (Isc) and open circuit voltage (Voc) and how can I obtain those value from a I-V curve?

Q2.Find the equivalent circuit from no - load and short - circuit test of a 3...

Q2.Find the equivalent circuit from no - load and short - circuit test of a 3 - phase. 14.92 kW, 400 V, 6 - pole induction motor from the following test results (line values): No - load: 400 - V, 11 A, p.f. = 0.2 Short - circuit: 100 - V, 25 A, p.f. = 0.4 Rotor Cu loss at standstill is half the total Cu loss.

1. Why don’t the short circuit and open circuit voltage produce power in a p-n cell?...

1. Why don’t the short circuit and open circuit voltage produce power in a p-n cell? 2. The power supplied by a solar cell is proportional to its surface area. Using the flux of solar energy under AM1 conditions, estimate the power a 1-cm2 solar cell will yield. State explicitly any assumption you make.

Questions regarding an open circuit transofrmer test: 1-What causes the primary current to be non zero...

Questions regarding an open circuit transofrmer test: 1-What causes the primary current to be non zero when the secondary winding is open circuied? 2-What is the main type of power loss being measured in an open circuit test? 3-The back-EMF equation tells us that the peak flux density is proportional to the AC supply voltage. Now knowing that the current which flows in the transformer under open-circuit conditions is the current (or mmf) which produces the magnetic flux density, explain...

Write a haiku about the economy or economic theory. Ahaiku is a short imagistic poem,...

Write a haiku about the economy or economic theory. A haiku is a short imagistic poem, technically complete after three lines and 17 syllables, arranged in the serial order 5-7-and-5 again. “Imagistic” means using concrete words, such as for example spider, egg, and dollar, to convey a general or universal feeling, idea, or phenomenon, such as banks, savings, and spending.

Dorthy Oran background, about who she is, and her theory. (short Presentation).

My lab was about an RC circuit and RL circuit, and talking about/showing the relationship of...

My lab was about an RC circuit and RL circuit, and talking about/showing the relationship of voltage and current for a capacitor and inductor by using a theoretically calculated tau in comparison to an experimentally found tau (using current/voltage calculated from 36.8% of initial value) from a simulation and experimentally found tau from the slope of the natural log of the current in the RC circuit and voltage in the RL circuit versus time from the same simulation. My theoretical...

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