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The X terminal identification on a transformer designates the secondary side of the transformer. Depending on the type of secondary windings, the terminals can be designated as X1, X2, X3 and X4. On a single winding secondary the terminals will be X1 and X2. The "hot" wire will be supplied from the X1 terminal and the return wire will use the X2 terminal. On most control Transformers the X2 terminal should be grounded to the control panel's chassis.

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12y ago
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14y ago

nuetral

Neutral, but more importantly, ground. XO must be connected to earth ground.

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Q: What is the xo connection in a transformer for?
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Continue Learning about Electrical Engineering

What is centre tap transformer?

In electronics, a center tap is a connection made to a point half way along a winding of a transformer or inductor, or along the element of a resistor or a potentiometer. ..


What type of connection is used in power grid connection between generation and distribution?

A step up transformer is used at this junction in the electrical transmission system.


What does transformer coupled mean?

It means a signal has no direct (galvanic) connection to the next circuit, rather, the signal is sent (coupled) only through the magnetic field in the transformer. This is used where unwanted DC current would flow, or where a ground loop would result if a direct connection was used.


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.


Why is the neutral point grounded on a transformer?

The secondary side (output) of a three phase transformer develops a "separately derived system". That is why you do notsupply a neutral to a three phase transformer. It develops its own reference to ground by being bonded to the transformer casing and to a substantial earth ground, such as a ground rod. The XO tap on a transformer provides the neutral to the secondary line. It will have a double wire lug. The neutral wire going to the panel being supplied goes under one lug and the same size wire is to go to the ground lug on the transformer chassis The ground lug is also a double with the other lug to be wired to the earth ground.

Related questions

What is the xo terminal on a transformer used for?

The XO denotes the joined secondary terminal connection of three single coils of a three phase transformer. It is the common return on any unbalanced current of a three phase system.


On a stup down transformer what does the xo symbol mean?

On a step down transformer XO symbol denotes the secondary split phase grounding point. This is also where the neutral of the three wire secondary is connected. The transformer connection is known as a single phase - three wire - with one secondary winding.


When connecting a step down transformer is the xo ground sized to the primary or secondary?

secondary


What is The Connection in three phase transformer?

the connection here meant for the connection of windings in three core or limbs of a transformer. it might be delta or star connected.


Want to know about transformer connection?

primary or secondary


How do the earth active and neutral wires work in a house?

Neutral mean is zero potential and neutral wire it has been taken from the Distribution Transformer " Y " point (Xo). This point " Xo " is directly grounded through the dedicated grounding system.


What type of transformer connection can be used when it is necessary to rectify alternating current into direct current with a minimum of ripple?

bride transformer


What is the principal use in star - delta transformer connection?

i thinkecause he like sit idkk


Why is the Neutral fundamental in a three phase Y-Y Transformer connection?

Suppression of harmonics


The Most suitable and economically connection for small high voltage transformer is?

delta star


How do you connect 480 vac three phase power to a 480 vac single phase transformer?

If the primary and the secondary windings of the three phase transformer are connected in delta, you cannot get a healthy neutral from it but why bother? You simply drive a rod into earth and use it as a neutral. Alternatively either the primary or the secondary windings must be connected as star and you use the common point as neutral.


What is the difference between an ordinary transformer and a center-tapped transformer?

An ordinary transformer has two input/output terminals but a center tapped transformer has 2 input and 3 output terminals. One is taken from the center for a ground connection. This causes it to get 50% of the actual value. And ordinary transformer contains 2 windings. An autotransformer has one.