Difference b/w thesis and project

In section 3 we present the results we obtained. In section 4 we discuss the possible interpretations of the results.

Difference b/w thesis and project

Separate single-phase transformers can be used and externally interconnected to yield the same results as a 3-phase unit. Understanding Vector Group of Transformer Part 1 The primary windings are connected in one of several ways.

The two most common configurations are the delta, in which the polarity end of one winding is connected to the non-polarity end of the next, and the star, in which all three non-polarities or polarity ends are connected together.

The secondary windings are connected similarly. This means that a 3-phase transformer can have its primary and secondary windings connected the same delta-delta or star-staror differently delta-star or star-delta.

This is called a 30 degree phase shift. When two transformers are connected in parallel, their phase shifts must be identical; if not, a short circuit will occur when the transformers are energized.

The phase relationship of the two voltages depends upon which ways round the coils are connected. The voltages will either be in-phase or displaced by degree. When 3 coils are used in a 3 phase transformer winding a number of options exist.

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The coil voltages can be in phase or displaced as above with the coils connected in star or delta and, in the case of a star winding, have the star point neutral Difference b/w thesis and project out to an external terminal or not.

Six Ways to wire Star Winding: Six Ways to wire Delta Winding Polarity An AC voltage applied to a coil will induce a voltage in a second coil where the two are linked by a magnetic path. The phase relationship of the two voltages depends upon which way round the coils are connected. The voltages will either be in-phase or displaced by deg.

Additive and substractive polarity of transformer When Pair of Coil of Transformer have same direction than voltage induced in both coil are in same direction from one end to other end. When two coil have opposite winding direction than Voltage induced in both coil are in opposite direction.

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Winding connection designations First Symbol: Phase displacement expressed as the clock hour number 1,6,11 Example — Dyn11 Transformer has a delta connected primary winding D a star connected secondary y with the star point brought out n and a phase shift of 30 deg leading The point of confusion is occurring in notation in a step-up transformer.

The 11 indicates the LV winding leads the HV by 30 degrees. Transformers built to ANSI standards usually do not have the vector group shown on their nameplate and instead a vector diagram is given to show the relationship between the primary and other windings.

Vector Group of Transformer The three phase transformer windings can be connected several ways. The vector group indicates the phase difference between the primary and secondary sides, introduced due to that particular configuration of transformer windings connection. The Determination of vector group of transformers is very important before connecting two or more transformers in parallel.

If two transformers of different vector groups are connected in parallel then phase difference exist between the secondary of the transformers and large circulating current flows between the two transformers which is very detrimental. Displacement of the vectors of other windings from the reference vector, with anticlockwise rotation, is represented by the use of clock hour figure.

Hardly any power system adopts such a large variety of connections. Symbol for the high voltage winding comes first, followed by the symbols of windings in diminishing sequence of voltage. The digits 0, 1, 11 etc relate to the phase displacement between the HV and LV windings using a clock face notation.

Phase rotation is always anti-clockwise. Use the hour indicator as the indicating phase displacement angle. This position is always the reference point. Paralleling typically occurs when transformers are located at one site and connected to a common bus bar banked or located at different sites with the secondary terminals connected via distribution or transmission circuits consisting of cables and overhead lines.Mar 31,  · It's time to start the ball rolling for !

Difference b/w thesis and project

Select the code in the box below, paste into your post and edit as necessary. All the best to this year's applicants! What is the difference between and Abstract and a Summary?

however, is quite different from a Summary. This does not come in essays or books, but in research papers and thesis writing.

Difference Between Abstract and Introduction Difference Between Case Study and Research Difference Between Case Study and Solved Case Study Difference. Analytic Philosophy. The school of analytic philosophy has dominated academic philosophy in various regions, most notably Great Britain and the United States, since the early twentieth century.

It originated around the turn of the twentieth century as G. E. Moore and Bertrand Russell broke away from what was then the dominant school in the British universities, Absolute Idealism.

Difference b/w thesis and project

The recovery of DNA and fingermark evidence from the same site can be problematic on account of potential contamination from fingermark visualisation techniques, and/or the destructive capability of the DNA recovery method. Here I describe the major differences between MS Project and Primavera P6 software.

Primavera vs MS Project - which one use should use? There are many more minor differences between Primavera P6 and and MS Project but above list is of major and prominent differences between the two software.

Difference Among: Original vs Actual vs. OK. This website uses cookies More info. Cookie Consent plugin for the EU cookie law.

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