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Brief Introduction of Rogowski Coils, from Three Aspects
Jun 17 , 2022
What is the Rogowski coil? The Rogowski coil is a flexible clip-on hybrid inductor coil that can be easily coiled around a current conductor for measuring. It is capable of measuring large currents of several thousand amperes without expanding the size of the voltage transformer. Rogowski coils are electronic voltage transformers used to measure alternating currents such as fast transients, single...
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Three main parameters that interfere with the accuracy of Rogowski coils
Jun 18 , 2022
Electronic current transformers are based on Rogowski coils with small size, light weight, wide frequency band, factors that more or less affect the accuracy of the coil in the measurement operation, such as the size of the circuit conductor under test relative to the coil, and external electromagnetic interference. , The circuit under test has the advantages of large conductor volume range, no ma...
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Analysis of Magnetization Curve of Ferrite Core for Transformer
Jun 18 , 2022
Ferrite is a material that is relatively cheap in magnetic materials, and has good magnetic permeability and magnetic saturation strength, so it is now used in many current transformers, and in open-close current transformers, it is often based on customers. Therefore, we choose ferrites of different materials, such as PC40 and high-conductivity ferrite. We know that PC40 has a certain magnetic pe...
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Leakage protection can save lives, The installation of this type of inductor must be clear
Jun 18 , 2022
1. Residual current transformer wiring Before installing the residual current transformer, it is necessary to identify the phase line, N line and PE line in the power network. The phase line and the N line should pass through the residual current transformer together as much as possible, and the PE line should not pass through the transformer. In the system software, if the N line does not pass th...
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Split core current transformer Structural characteristics and working principle
Jul 20 , 2022
1. Structural features Split core current transformer has a good design structure, beautiful appearance, and a transparent flip-top design for easy wiring. The shell material is made of PC/ABS alloy, which has the characteristics of high temperature resistance, high mechanical strength and environmental protection; the iron core is made of oriented cold-rolled silicon steel sheet, which has the ch...
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Fixation Mode of Split Core Current Transformer
Jul 21 , 2022
Split core current transformers are often used in equipment and have excellent induction effects, which can improve the use efficiency of equipment, have a good effect in controlling current, and complete the conversion of upper and lower voltages. How should we fix it in order to make it work smoothly and avoid vibration? ZTC will take you to understand. 1.Fixing with set screws: The set screws a...
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Application of Rogowski Coil in Active Power Filtering
Jul 21 , 2022
The extensive application of nonlinear loads in power grids brings a series of problems harmonic wave. The main hazards of harmonic wave include: Increase the load of power facilities, reduce the power factor of the system, reduce the effective capacity and efficiency of power generation, transmission and electrical equipment, resulting in equipment waste, line waste and power loss; Causes th...
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The ratio difference, angle difference of the transformer and the safety on the current transformer line
Jul 25 , 2022
Ratio difference: The fault of the transformer includes both the ratio difference and the angle difference. The ratio error is abbreviated as the ratio error, which is usually indicated by the symbol f. It is equal to the difference between the actual secondary current and the primary current converted to the secondary side and the ratio of the primary current converted to the secondary side. It i...
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