电压突变的影响 DV DT
电弧电压突变 sudden change of arc voltage
电压突变量保护 undervoltage sensing protection
系统电压突变动态控制 System voltage sudden change dynamic control
电源电压或负载突变后 TRANSIENT RECOVERY TIME
电压相位突变检测法 PJD ; Phase Jump Detection
电压相位突变孤岛检测 PJD ; PhaseJumpDetection
利用小波变换检测突变信号的原理，可以在电力系统故障发生的瞬间快速检测出电流或电压突变信号。
According to the theory of testing abrupt signals with wavelet transformation, the abrupt signals of current and voltage can be quickly detected when power system faults occur.
针对传统电流突变量和电压突变量选相元件不能同时满足强弱电源系统侧保护要求的缺点，提出一种新的突变量选相原理。
A novel fault phase selector by fault component of compensation voltage based on traveling wave is presented for high-speed protection.
电压调节平稳：采用补偿方式机电结合，电压调节连续平稳不会发生突变；
Steady voltage adjustment: Adopt the compensate type combination of machinery and power, the continuous and steady voltage regulating with no sudden break.
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