Current Transformer Symbol Standard

Graphical symbols for use on mechanical engineering and construction drawings diagrams plans.

Current transformer symbol standard. The electrical transformer is a component consisting of two or more coils coupled by magnetic induction. Every transformer symbol can be configured by the action. The most common ct secondary full load current is 5 amps which matches the standard 5 amp full scale current rating of switchboard indicating devices power metering equipment and protective relays. Upon considering the design of the isolated power supply design a good question is what is the transformer iec 61558 standard in addition what do all the symbols mean.

Is a type of instrument transformer that is designed to produce an alternating current in its secondary winding which is proportional to the current being measured in its primary current transformers reduce high voltage currents to a much lower value and provide a convenient way of safely monitoring the actual electrical current flowing in an ac. This part of iec 61869 is a product standard and covers only additional requirements for lowpower passive current transformers. The following transformer symbols show some standard electrical transformer symbols for industrial control systems such as magnetic core symbol inductor symbol choke symbol variometer symbol transductor induction induction voltage current transformer linear coupler symbol etc. It produces a current in its secondary which is proportional to the current in its primary.

P p autodesk is a leader in 3d design engineering and entertainment software. So a review the standard iec 61558 safety of power transformers power supplies reactors and similar products this is the relevant standard for transformers of all types and is applicable for isolating transformers. The current transformer c t. Test equipment used to measure values at final inspec.

Current transformers along with voltage or potential transformers are instrument transformers instrument transformers scale the large values of voltage or current to small standardized. Transformers are tested during and after production. Testing must be based on current standards with any agreed deviations. P copyright 2020 autodesk inc.

A transformer can be built according to many diffe rent standards depending on what it is to be used for.