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The connections on a transformer are circuit ties for the primary and secondary windings, and any taps. This is a very general question, and only a very general answer can be given. The basic transformer (outside the autoformer) has four connections, and two of them are for the ends of the primary windings, and two of them are for the ends of the scondary windings. Certainly there are many variations on the theme for taps in the primary and/or secondary, additional primary or secondary windings, different windings for different phases (as in power distribution applications), etc. More information on Transformers can be had by using the link to the Wikipedia article on these electrical and electronic devices that are used to step up voltages, step down voltages, or isolate electrical circuits (as well as a number of other things).
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∙ 15y ago
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∙ 12y ago'Tertiary' means 'third'. So a 'tertiary winding' is a third set of windings used in a three-phase transformer, usually delta-connected, which provides a path for third harmonic current circulation which would otherwise distort the current waveform in the main windings.
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∙ 11y agoIf you don't know what type of transformer it is you should leave it alone to avoid electrocution.
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∙ 12y agoOn an elementary transformer the primary connections on a transformer are H1 and H2. On the secondary side of the same transformer the connections are designated as X1 and X2.
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∙ 12y agorysdjry
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Why mentions the nameplat of transformer in vector group?
A transformer's 'nameplate' lists all the data necessary to identify the rating, connections, etc., of a transformer. Part of this data is the 'vector group' information which applies to three-phase transformers, and which, in simple terms, tells us whether or not the transformer can be connected in parallel with another.
What is a phase shifting transformer?
This applies to three-phase transformer connections. 'Phase shift' or 'angular displacement', is defined as 'the angle by which the secondary line-to-line voltage lags the primary line-to-line voltage'.Angular displacement depends on the type of transformer connection. The most common are:delta/delta results in an angular displacement of 0o or 180owye/wye results in an angular displacement of 0o or 180odelta/wye results in an angular displacement of 30o or 210owye/delta results in an angular displacement of 0o or 180oThe angular displacement for all possible combinations of three-phase transformer connections are listed in transformer vector group charts.Angular displacement determines whether or not it would be possible to parallel different types of three-phase transformer connections. For example, from the above data, it would be impossible to parallel, for example, a delta/delta transformer with a delta/wye transformer.
Can you wire the load side of a transformer to operate the line side and get higher voltage?
Yes, it is called back-feeding and should only be done by a qualified electrician who has actual experience with this type of installation. Look up buck and boost transformer connections.
Can a cvt also be used as CT?
No. A CVT (capacitor voltage transformer), like an voltage transformer, has a high primary impedance. the connections of a CT require the high voltage current to pass through the primary winding. This would result in significant loading of the circuit in question, at least until the CVT cooked.
Can you use ordinary transformer in place of auto transformer?
yes we can place auto transformer in place of original transformer
How transformer output connections get burn?
Poor connections could result in arcing; the transformer could be overloaded as well, resulting in more current flowing through them than designed.
Why only zigzag connection is used in earthing transformer rather than any other connections?
we need all zig-zag connections
What is a marshalling box?
A marshal box is that box hole connections of the transformer to customer and customer to Transformer gone from this box. Marshal means army officer.
Why the transformer is kept at a height from the ground?
If you are referring to a pole-mounted distribution transformer, it's in order to maintain a safe clearance between its high-voltage connections and ground level.
What hooks up to X0?
On a transformer connection H1 and H2 are the primary connections. X1 and X2 are the secondary connections. If your transformer has a split secondary that is grounded, that terminal is X0. The sequence is X1 - X0 - X2. The X0 usually indicates that there is a connection to a neutral wire along with the ground wire.
What are taps for in a transformer?
The ratio of windings between a primary and secondary in a transformer govern the output voltage. Multiple taps are connections to various points in the coil effectively changing the winding ratios to get multiple voltages from the same transformer. Taps can be on the primary, secondary or both to provide a more versatile transformer.
What are the advantages of 3-phase transformer over 3 single-phase banks of transformers?
The main advantage is that the 'footprint' of a three-phase transformer is smaller than a transformer bank, and all connections are prewired which makes them easier and quicker to install and replace.
Why mentions the nameplat of transformer in vector group?
A transformer's 'nameplate' lists all the data necessary to identify the rating, connections, etc., of a transformer. Part of this data is the 'vector group' information which applies to three-phase transformers, and which, in simple terms, tells us whether or not the transformer can be connected in parallel with another.
Why is identification of the vector group of transformer important?
Vector group means it defines the primary & secondary side connection type of the transformer.For example DY says D for the delta connections (windings connected between two phases) & Y for the star connections (windings connected between two phases). That's why identification of the vector group of transformer is important.AnswerVector groups specify whether two or more three-phase transformers can be paralleled with each other. In order to do so, their angular displacements must be the same. Transformer connections listed in the Vector Group tables, categorise transformer connections in terms of their angular displacements.
What is the voltage phase shift between primary and secondary line voltages in star-delta transformer connection?
The voltage phase shift between primary and secondary connections in a transformer is 180 electrical degrees.
How can auto transformer be differentiated from a two winding transformer just by looking at it externally?
A two-winding transformer must have at least 4 wires, an autotransformer need only have three. So, if the device has only three connections, it cannot be a two-winding transformer. Or, if it is, it is internally connected as an autotransformer and is treated the same. On the other hand, if it has four or more connections, it could be either, because the manufacturer could have internally brought out the common wire to two connections to make it easier to wire the line and load. You would have to measure with an ohmmeter to be sure! Warning! Do not attempt to make any such measurements unless you are trained and fully qualified to do so. If it is a large transformer used in a power distribution system it will have this information on the nameplate.
What is a phase shifting transformer?
This applies to three-phase transformer connections. 'Phase shift' or 'angular displacement', is defined as 'the angle by which the secondary line-to-line voltage lags the primary line-to-line voltage'.Angular displacement depends on the type of transformer connection. The most common are:delta/delta results in an angular displacement of 0o or 180owye/wye results in an angular displacement of 0o or 180odelta/wye results in an angular displacement of 30o or 210owye/delta results in an angular displacement of 0o or 180oThe angular displacement for all possible combinations of three-phase transformer connections are listed in transformer vector group charts.Angular displacement determines whether or not it would be possible to parallel different types of three-phase transformer connections. For example, from the above data, it would be impossible to parallel, for example, a delta/delta transformer with a delta/wye transformer.
