摘要
在线性RLC冲击电流发生回路研究的基础上,提出了非线性被试品冲击电流发生回路的设计原则:当线性调波电阻取值为非线性被试品动态电阻范围的(0．25-0．5)倍时,冲击电流发生电路输出的冲击电流参数满足IEC和国标的要求。实践证明:按照上述原则设计的回路可用于对避雷器阀片、压敏电阻及浪涌保护器SPD进行冲击电流检测。
Starting from the circuit theory, the RLC impulse current circuit for non-linear resistances are studied. On the basis of it, the designing theory of impulse current generator for nonlinear resistances is put forward. It is testified that, when linear waveform adjustable resistance R1 equals to 0.25 - 0.5 times of the total changing field of nonlinear dynamic resistance, the waveform parameters of impulse current agree with the requirement of IEC and GB standards. The fact shows that the designed circuits can be used in impulse current test for arrestors, varistors and SPD.
出处
《高压电器》
EI
CAS
CSCD
北大核心
2005年第6期412-415,419,共5页
High Voltage Apparatus
关键词
非线性被试品
冲击电流
动态电阻
nonlinear resistances
impulse current
dynamic resistance
