View source for Current transformer

[[Category:Done 2018-05-18]] 
[[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>

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==
{{reflist}}
[[Category:Uploaded]]