本文对变压器节能提出了一个崭新的观点，即通过三次谐波磁场调制机理来降低变压器的铁耗和励磁电流。
A new method for reducing core loss and excitation current in transformers that utilizes the fundamental principles of third-harmonic flux modulation is proposed in this paper.
文中认为当在变压器基波磁通中加入某一幅值的三次谐波磁通后，能显著地降低铁耗和励磁电流。
The study shows that the third-harmonic flux with a certain value added to the fundamental flux can obviously reduce both core loss and excitation current.
通过改变励磁电流的大小，得到了基波绕组和三次谐波绕组的空载特性曲线。
The first harmonic winding and harmonic winding no-load property curve are gained when field current is change.
原理是利用相关分析间接实现差动电流虚拟三次谐波比较 。
This approach uses the relative analysis to achieve the comparison of the Virtual Third Harmonic of differential current.
原理是利用相关分析间接实现差动电流虚拟三次谐波比较 。
The influence factors of low water based on correlation analysis in karst drainage basin;
根据弧焊变压器磁滞回线的测试结果，对弧焊变压器的稳态谐波电流进行计算，结果表明弧焊变压器空载谐波电流的主要成分为三次谐波。
Steady state harmonic current is calculated based on the magnetic characteristic curve of welding transformer. The results show that 3rd harmonic component is the main composition.
根据弧焊变压器磁滞回线的测试结果，对弧焊变压器的稳态谐波电流进行计算，结果表明弧焊变压器空载谐波电流的主要成分为三次谐波。
Steady state harmonic current is calculated based on the magnetic characteristic curve of welding transformer. The results show that 3rd harmonic component is the main composition.
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