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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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Advantages of nanocrystalline alloys
May 18 , 2020
In order to obtain the best suppression effect on common mode interference, the common mode inductor core must have high magnetic permeability and excellent frequency characteristics. In the past, most of the ferrite core materials used for common mode inductors have excellent frequency characteristics and low cost advantages. However, ferrite also has some insurmountable weaknesses, such as poor ...
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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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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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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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The general concept of current transformers
Aug 06 , 2020
A general current transformer can transform a primary current with a large value into a secondary current with a smaller value according to a certain transformation ratio, so as to play the main purpose of maintenance and accurate measurement. The main function of the zero-sequence current transformer is to protect the power circuit when an electric shock accident or common leakage occurs in the p...
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Factors that harm coil inductance
Aug 06 , 2020
Coil is a more frequently used equipment in power circuits. It is made by winding a transmission line on an insulating tube. The material of the transmission line will endanger the function of the coil. Below I will tell everyone what are the elements that harm coil inductance and what is the function of coil inductance? What are the elements that harm coil inductance 1. The inductance value in th...
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