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What is a transformer leg?

Updated: 12/18/2022
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12y ago

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A stabilizing servo. To quote Blitzwing:

Careful you clobber clad klutz! You stepped in something! But with a few dancing lessons you'll be light on your stabilizing servo's like me!

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Q: What is a transformer leg?
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Continue Learning about Engineering

Can you use ordinary transformer in place of auto transformer?

yes we can place auto transformer in place of original transformer


What are the problems associated with the y-y three-phase transformer connection?

Your third leg is called the high leg and can exceed 180 or more volts. In a 3 phase panel you will loose a third of your circuits unless they are used for motors or other equipment that uses three phase evenly through its function {meaning it doesn't use one leg exclusively for controls or 110V functions. It get a bit involved explaining the windings of a transformer and center taps but suffice it to say one leg gets more than it's share of windings in the transformer. It was used in the early years of industry when single phase 240V systems were the only game in town and they wanted to get more power from the Wye set up prior to delta. It never was popular but a necessity for industry and grew only because of slow development incorporating the 208V delta 3 phase system.


What is a transformer that increases voltage?

A transformer that increases voltage is a step-up transformer.


Why earthing transformer is zigzag connection?

A zigzag transformer is used in connection with 3 phase and is made up of 6 coils connected in a "Y" manner. Each leg of the "Y" is made up of a coil on a different phase leg of the transformer. The neutral formed by the zigzag connection is very stable. Therefore, this type of transformer, or in some cases an auto transformer, lends itself very well for establishing a neutral for an ungrounded 3 phase system. Many times this type of transformer or auto transformer, lends itself very well for establishing a neutral for an ungrounded 3 phase system. Many times this type of transformer or auto transformer will carry a fairly large rating, yet physically be relatively small. This particularly applies in connection with grounding applications. The reason for this small size in relation to the nameplate KVA rating is due to the fact that many types of grounding auto transformers are rated for 2 seconds. This is based on the time to operate an overcurrent protection device such as a breaker. Zigzag transformers used to be employed to enable size reductions in drive motor systems due to the stable wave form they present. Other means are now more common, such as 6 phase star.


What is the difference between isolation transformer and ferromagnetic transformer?

An isolation transformer is usually a ferromagnetic transformer. The question needs to be framed more usefully.

Related questions

How many relays in a transformer?

your grandmother's left synthetic leg . . . I HOPE THAT ANSWERED YOUR Question :) I'm glad i could help and be of your services


Outlet that reads 120 volts but you plug anything into it it burns it up?

one phase is a wild leg off the power transformer


What is a half transformer and a half transformer?

a hole transformer


What is transformer tap changing?

A transformer that has part of one winding partitioned in such a way that it can be removed or added to the winding. For example, you may have a transformer with 100 turns on the low side and 1000 turns on the high side. If it were a tap changing transformer on the high side winding, you may be able to add or subtract 100 turns, so the turns ratio can be anywhere from 9/1 to 10/1. <<>> This type of transformer is in common use in home distribution systems. On the side of the transformer there is a handle with the markings of 14,400/7200. By having this ability to work on two different primary voltages the utility only has to stock one transformer. The same transformer can be connected to the grid across phases at 14,400 or phase leg to ground at 7200 volts. The transformer ratios are so wound that the output voltage remains at 120/240.


What is a tap changing transformer?

A transformer that has part of one winding partitioned in such a way that it can be removed or added to the winding. For example, you may have a transformer with 100 turns on the low side and 1000 turns on the high side. If it were a tap changing transformer on the high side winding, you may be able to add or subtract 100 turns, so the turns ratio can be anywhere from 9/1 to 10/1. <<>> This type of transformer is in common use in home distribution systems. On the side of the transformer there is a handle with the markings of 14,400/7200. By having this ability to work on two different primary voltages the utility only has to stock one transformer. The same transformer can be connected to the grid across phases at 14,400 or phase leg to ground at 7200 volts. The transformer ratios are so wound that the output voltage remains at 120/240.


What is the purpose of grounding the common leg of a 240 vac transformer in a residential air handler have seen some built with it and some without it?

It is the same reason as with the larger transformers, to provide a return circuit in case of a short circuit to ground. The large rush of current will take out the fuse or trip the circuit breaker. The second advantage is in trouble shooting, one lead of the tester is connected to the ground while you test for the voltage with the other. If the transformer was not grounded when trouble shooting , one lead of the tester would have to be on one leg of the transformer all during the test.


Why induction transformer called rotating transformer?

Transformer has windings


Can you use ordinary transformer in place of auto transformer?

yes we can place auto transformer in place of original transformer


What are the problems associated with the y-y three-phase transformer connection?

Your third leg is called the high leg and can exceed 180 or more volts. In a 3 phase panel you will loose a third of your circuits unless they are used for motors or other equipment that uses three phase evenly through its function {meaning it doesn't use one leg exclusively for controls or 110V functions. It get a bit involved explaining the windings of a transformer and center taps but suffice it to say one leg gets more than it's share of windings in the transformer. It was used in the early years of industry when single phase 240V systems were the only game in town and they wanted to get more power from the Wye set up prior to delta. It never was popular but a necessity for industry and grew only because of slow development incorporating the 208V delta 3 phase system.


What are the problems associated with the Y -Y three-phase transformer connection?

Your third leg is called the high leg and can exceed 180 or more volts. In a 3 phase panel you will loose a third of your circuits unless they are used for motors or other equipment that uses three phase evenly through its function {meaning it doesn't use one leg exclusively for controls or 110V functions. It get a bit involved explaining the windings of a transformer and center taps but suffice it to say one leg gets more than it's share of windings in the transformer. It was used in the early years of industry when single phase 240V systems were the only game in town and they wanted to get more power from the Wye set up prior to delta. It never was popular but a necessity for industry and grew only because of slow development incorporating the 208V delta 3 phase system.


What are the problems associated with the Y-Y three phase transformer connection?

Your third leg is called the high leg and can exceed 180 or more volts. In a 3 phase panel you will loose a third of your circuits unless they are used for motors or other equipment that uses three phase evenly through its function {meaning it doesn't use one leg exclusively for controls or 110V functions. It get a bit involved explaining the windings of a transformer and center taps but suffice it to say one leg gets more than it's share of windings in the transformer. It was used in the early years of industry when single phase 240V systems were the only game in town and they wanted to get more power from the Wye set up prior to delta. It never was popular but a necessity for industry and grew only because of slow development incorporating the 208V delta 3 phase system.


What is the function of fans in transformer?

The function of fans in a transformer is to regulate the transformer's temperature.