A teriary winding is useful for many things. A delta tertiary will help balance voltage/currents to some degree. It also traps third harmonics. In substations, the substation power is often taken from the tertiary. It can also be used as a lower voltage connection for inductors (much cheaper, due to the lower voltage vs. primary connected inductors).
In some Transformers there will be an additional winding called tertiary winding in addition to primary winding and secondary winding. The purpose of tertiary winding is to provide a circulating path for the third harmonics oscillations third harmonics oscillations are 150Hz oscillations.
It is used in order to keep down the third harmonic voltages in a Y-Y bank of transformers.This provides a path for zero sequence current during ground-fault conditions.Such a winding may also help to stabilize the neutral of the fundamental frequency voltages and prevent third harmonic currents in the lines and ground.
The primary winding is connected to the supply. The secondary winding is connected to the load. A tertiary winding (if used) is a third winding, which may be connected in various ways.If the transformer is a three-phase transformer, then there are three common configurations: wye (also known as 'star'), delta (also known as 'mesh'), and zig-zag.
An 'armature winding' is the rotor winding, and the 'field winding' is the stator winding.
The advantage of HTML is it's simple tags and usage. It can create web pages at the blink of an eye.
Winding: To wind the coils into the slots on the stator or rotor and connecting them up to form a winding. Re-winding. Is to remove the old winding and doing what I explained above.
In the case of a capacitor-start/run single-phase induction motor, the main field is provided by the main (running) winding, and the capacitive branch is the auxiliary winding. In the case of a capacitor-start motor, the main winding is the running winding and the auxiliary winding is the starting winding.
A third winding - primary, secondary, and tertiary. The third winding is typically sized much smaller than the primary and secondary, and is very often a lower voltage; it can be used for stabilization, removal of 3rd harmonics, power factor correction injection (lower voltage inductors are cheaper), and station service.
The terms 'primary', 'secondary', and 'tertiary' winding has absolutely nothing whatsoever to do with voltage levels. The primary winding is simply that winding connected to the supply, while the secondary winding is that winding connected to the load. The voltages of these windings depend on whether you are dealing with a step-up or step-down transformer.
i want to know about the advantage and disadvantages
it decreases the high input voltage of its primary winding to a voltage level on secondary winding suitable for usage
Depends, do you need to connect auxiliaries/generator/capacitor/reactor to tertiary? If not you may consider to not to use tertiary. The 3rd harmonic current will become an issue then. The phase to ground Isc will be lower.
in star-star neutral transformer at unbalanced load condition zerosequnce current will be flows in secondary side but this current can not be balanced by primary side because its not having neutral to circulate zerosequence current.due to this unbalance voltage will appeared in primary side but the tertiary delta winding allows circulate the zerosequence current so the primary voltage will get stabilized.
The primary winding is connected to the supply. The secondary winding is connected to the load. A tertiary winding (if used) is a third winding, which may be connected in various ways.If the transformer is a three-phase transformer, then there are three common configurations: wye (also known as 'star'), delta (also known as 'mesh'), and zig-zag.
In that usage, it would be an adverb.
i understand that YNaOd1 represent an auto transformer with HV winding as wye connected and loaded tertiary. Please correct me if i am wrong.
An 'armature winding' is the rotor winding, and the 'field winding' is the stator winding.
You need two windings because that is the purpose of the transformer - to convert one voltage into another. If there were only one winding, it would be an inductor, or a special case called an autotransformer, but that is still "sort of" two windings.AnswerThe major advantage of a two-winding transformer (a 'mutual transformer') over a single-winding transformer (an 'autotransformer') is that a two-winding transformer provides electrical isolation between the secondary and primary circuits. This is very important for safety reasons and there are many circumstances in which the use of an autotransformer is not permitted.
For a step-down transformer, its secondary winding will be the LV winding. For a step-up transformer, its primary winding will be its LV winding.