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Current Transformer Structure
Feb 20 , 2020
Current transformer is mainly composed of a primary winding,a secondary winding and an iron core, and there is insulation among the primary, secondary and iron cores. In order to improve the accuracy of the current transformer, the error of the current transformer is generally compensated.In addition to the above-mentioned primary and secondary windings and cores, some also wound auxiliary coils o...
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Residual current devices (RCD)
Apr 23 , 2020
Brief description Principle The main characteristics of RCD are shown in the below picture. Its iron core surrounds all current-carrying conductors of an electrical circuit, and the magnetic flux generated in the magnetic core is related to the arithmetic and current of these conductor currents in an instant; the current flowing in one direction is assumed to be positive (I1), Then the current flo...
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Several basic concepts about accuracy and linearity
May 21 , 2020
Before talking about accuracy and linearity, let us talk about the concepts of several errors: 1. Absolute error: the difference between the measured value and the ideal value; 2. Relative error: the ratio of the absolute error of the measured point to the ideal value of the measured point; 3. Reference error: the ratio of the absolute error of the measured point to the reference value (range); 4....
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What is the effect of current transformer in open circuit condition
May 23 , 2020
The current transformer, CT, has fewer primary winding turns. When using, the primary winding is connected in series in the circuit under test, and the secondary winding has more turns. It is used in series with the current coils of measuring instruments and relays. ,So the CT is close to short circuit during normal operation. The magnitude of the CT secondary current is determined by the primary ...
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How to use display advertising to break through traffic bottlenecks and build your own current transformer brand?
May 24 , 2020
How to use display advertising to break through traffic bottlenecks and build your own current transformer brand? 1.Cartoon with different type and visual figures Case study: 7 reasons why you need to work with titoma https://www.youtube.com/watch?v=ydLXCJSvGNU 2.Talk our split core current transformer by your client Empathy Case: KEY SMART From the perspective of the customer, from little boy to ...
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How to DIY your home energy monitor with ZENTAR CT?
May 25 , 2020
1.What you need to buy? Split core current transformer from Zentar(CT313@100A) Mircocontroller Display Resistors Capacitors Protoboards Headphone jacks 2.Design a case by one-time 3D printer 3.Design a system to ingest data from energy monitors 4.Archiving data 5.Calculate the consumption in total 6.Arduino sofeware 7.Install current transformer 8.Expose data 9.Develop app 10.Read the datas and en...
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Choose a good DC immunity current transformer cores
Jun 09 , 2020
DC immunity current transformer Applications Electronic electricity meter Product Features 1 S type closed-loop magnetic circuit: low sensitivity to interference sources, usually no shielding requirements. 2 Working principle of electromagnetic conversion, no semiconductor device: High reliability, only few additional circuits are needed 3 Simple assembly with only a few components: low assembly c...
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Winding method of current transformer
Jul 13 , 2020
The current transformer is an instrument that accurately converts a large amount of current on the primary side into a small amount of current on the secondary side according to the magnetic effect of the current. The current transformer is composed of a closed iron core and windings. The number of primary winding turns is very small, and the string is in the route of the current to be accurately ...
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