Current transformer: Difference between revisions
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[[File:Current transformer.jpg|thumbnail|Figure 1. An example of a current transformer.]] | [[File:Current transformer.jpg|thumbnail|Figure 1. An example of a current transformer.]] | ||
<onlyinclude>'''Current transformers''' measure the amount of [[electricity|electric]] [[current]] flowing through a particular [[wire]] on the [[electrical grid]]<ref name=B>R.T. Paynter, “Basic Electric Components and Meters,” in ''Introduction to Electricity'', 1rst ed. NJ: Prentice-Hall, 2011, ch. 21, sec. 21.5, pp. 935-936.</ref> by making a secondary current that is proportional (but much less than) the amount of current flowing in that wire.</onlyinclude> | <onlyinclude>'''Current transformers''' measure the amount of [[electricity|electric]] [[current]] flowing through a particular [[wire]] on the [[electrical grid]]<ref name=B>R.T. Paynter, “Basic Electric Components and Meters,” in ''Introduction to Electricity'', 1rst ed. NJ: Prentice-Hall, 2011, ch. 21, sec. 21.5, pp. 935-936.</ref> by making a secondary current that is proportional (but much less than) the amount of current flowing in that wire.</onlyinclude> | ||
A current transformer is made of a [[transformer]] surrounding a [[current]]-carrying [[conductor]]. The conductor serves as the primary for the transformer. The current passing through the conductor generates a [[magnetic field]] which cuts through to the secondary winding generating a secondary current proportional to the current through the primary (conductor). This device is useful as a current measuring device because it allows ratio to be applied where the full current doesn't matter. For example a 600:1 current transformer would generate 1 [[amp|A]] of secondary current for every 600 [[amp|A]] of primary current. This is extremely useful to have for the [[electrical grid]] because it allows for the measurement of high-current values without having to interrupt operating circuits.<ref name=B/> | A current transformer is made of a [[transformer]] surrounding a [[current]]-carrying [[conductor]]. The conductor serves as the primary for the transformer. The current passing through the conductor generates a [[magnetic field]] which cuts through to the secondary winding generating a secondary current proportional to the current through the primary (conductor). This device is useful as a current measuring device because it allows ratio to be applied where the full current doesn't matter. For example a 600:1 current transformer would generate 1 [[amp|A]] of secondary current for every 600 [[amp|A]] of primary current. This is extremely useful to have for the [[electrical grid]] because it allows for the measurement of high-current values without having to interrupt operating circuits.<ref name=B/> | ||
== For Further Reading == | |||
For further information please see the related pages below: | |||
*[[Transformer]] | |||
*[[Electrical substation]] | |||
*[[Electrical grid]] | |||
*[[Residential energy use]] | |||
*[[Magnetic field]] | |||
*[[Electric current]] | |||
*[[Distribution grid]] | |||
* Or explore a [[Special:Random| random page!]] | |||
==References== | ==References== | ||
{{reflist}} | {{reflist}} | ||
[[Category:Uploaded]] | [[Category:Uploaded]] | ||
Revision as of 03:11, 18 May 2018
Current transformers measure the amount of electric current flowing through a particular wire on the electrical grid[1] by making a secondary current that is proportional (but much less than) the amount of current flowing in that wire.
A current transformer is made of a transformer surrounding a current-carrying conductor. The conductor serves as the primary for the transformer. The current passing through the conductor generates a magnetic field which cuts through to the secondary winding generating a secondary current proportional to the current through the primary (conductor). This device is useful as a current measuring device because it allows ratio to be applied where the full current doesn't matter. For example a 600:1 current transformer would generate 1 A of secondary current for every 600 A of primary current. This is extremely useful to have for the electrical grid because it allows for the measurement of high-current values without having to interrupt operating circuits.[1]
For Further Reading
For further information please see the related pages below:
- Transformer
- Electrical substation
- Electrical grid
- Residential energy use
- Magnetic field
- Electric current
- Distribution grid
- Or explore a random page!