The relationship between power frequency overvoltage and system operation mode is investigated.

分析工频过电压与系统运行方式的关系.

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Automatic power - frequency withstand voltage test equipment, automatic test equipment BIL.

全自动工频耐压试验装置, 全自动冲击耐压试验装置.

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High power frequency changing water cooled spindle, can process hard materials efficiently.

大功率变频水冷主轴, 可有效加工硬质材料.

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Power frequency magnetic field immunity test.

检验设备对雷击产生的磁场的抗扰性.

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Section 8: Power frequency magnetic field immunity test.

第8节: 电源频率的磁场抗干扰测试.

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This type of motor is typically a high - speed, power - frequency motor, usually in small 250 W.

此类电机凡是为矮速变频电机, 功率较小, 凡是在250W以上.

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Insulator should withstand power frequency voltage, switchingvoltage and lightning impulse voltage, shouldn't flashover under pollution.

绝缘子运行中要能够承受工频电压、操作过电压 、 雷电过电压的作用, 并在污秽条件下不发生闪络.

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Make ADS 7864 as the main chip of power frequency parameters of power transmission line measure system.

将ADS7864作为工频参数测量系统中的主要器件.

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Electromagnetic compatibility ( EMC ) - Part 4 - 28 : Testing and measurement techniques - Variation of power frequency, immunity test.

电磁兼容性 ( EMC ).第 4-28 部分: 试验和测量技术.电源频率变化和抗扰试验.

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This method can effectively compensate the current error caused by magnetizing current at power frequency.

该方法对工频情况下由激磁电流造成的互感器误差有良好法的补偿效果.

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Measuring ferromagnetic component volt - ampere characteristic in low frequency condition can offset deficiency of power - frequency experiment.

低频下测量铁磁元件的伏安特性能够弥补工频试验的不足,低频试验方法已被列入一些标准中.

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Design a kind of intellectualized instrument, which can automatically measure power frequency parameters power transmission line.

研究设计了一种能自动测量输配电线路工频参数的智能化仪表.

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A 50 Hz band - stop filter ( notch ) is designed to restrain the power frequency interference further.

为了进一步抑制工频干扰,设计了50Hz陷波电路.

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