In course of motor starting after no-voltage bus, a malfunction fault of motor differential protection was analyzed.
分析了一起母线失电后快切装置动作时电动机起动过程中差动保护的误动事故。
The protection functions include three-section over-current protection, inverse-time over-current protection, three-phase one-shot no-voltage auto-recloser and so on.
保护功能有三段过电流保护、反时限过流保护、三相一次检无压自动重合闸等。
Now there is a strange thing because classically you would say, well, if I just have a wire with nothing in it there is no voltage on it.
这是一个奇怪的问题,你可能会说,假如仅仅有一个金属线圈的话,金属线圈内不会有电压。
When no electricity is delivered, a voltage difference between the electrodes drives a current in the other direction.
当没有电流流通时,电极之间的电压差驱动电子反方向流动。
When no voltage is applied, the oil spreads out to cover the pixel, which is 200 microns on a side.
无电压时,油扩散,盖住边长200微米的像素。
The ventilators cool down the radiators. In summer the noise is terrible. Right now there is no voltage here, works will start in autumn.
排气风扇冷却散热器,在夏天,噪音是可怕的,现在这里没有电压,工程将于秋天开始。
Because of the pure resistive nature of the equivalent resistance of impedor, no harmonic will be generated during the voltage regulation.
由于阻抗器的等效电阻为纯电阻,因此在调整电压的过程中不会产生谐波。
Steady voltage adjustment: Adopt the compensate type combination of machinery and power, the continuous and steady voltage regulating with no sudden break.
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;
If no triple overtone voltage, check the winding lug or replace with another winding.
发电机的谐波组开路或短路,无三次谐波电压输出,检查绕组接头或拆换绕组。
After the connections are made, verify the system is working properly by turning the bias voltage on and taking a current measurement with no ion beam current.
完成电路连接之后,接通偏置电压,在没有离子束电流的情况下进行电流测量,以验证系统能够正常工作。
Were there no transformers to adjust the voltage, long-distance transmission of electricity would be impossible?
要是没有变压器来调节电压,远距离输送电力是不可能的。
Voltage sag, as one of the important aspect of power quality, its research is just underway in our country, which has no criterion related.
而作为电能质量中的一个重要方面——电压凹陷,在我国的研究则刚刚起步,至今没有相应的国家标准。
No practicable substitutes for lead in the plating layer of high voltage diodes on the basis of a zinc borate glass body are available.
以硼酸锌玻璃体为基础的高压二极管的电镀层的铅的替代品仍然不切实际。
First of all, you cannot turn a voltage feedback amp into a current feedback amp. there is just no way to do that.
首要的,你不能把电压负反馈功放机改成电流负反馈,几乎没有办法那么做。
Make sure that the ac voltmeter shows no voltage.
确保交流伏特表显示无电压。
For example, an arc furnace is nonlinear since it will draw a no sinusoidal current (rich in harmonic's) when a sinusoidal voltage is applied.
例如,电弧炉就是一种非线性负荷,因为加上正弦电压后,它将形成非正弦电流(大量谐波)。
Going back to the clipping diodes now, the diodes have no effect until the signal at the output is greater than the threshold voltage of the diode.
回到剪辑二极管现在,二极管没有影响到信号输出大于阈电压的二极管。
There is no operative"voltage dead zone", and the definite directionality exists.
同时,继电器不存在动作的“电压死区”,具有明确的方向性。
Since long time no, the battery can not be charged and the voltage is too low, PLC program is lost.
由于长时间不用,电池得不到充电而电压过低,PLC程序丢失。
Finished cable should have factory name (code No.), type, voltage and other marks which should be resistant to wear.
成品电缆应有制造厂名(代号)、型号和电压等标志,标志应耐擦。
Stable performance, low rate discharge voltage stable, no voltage hysteresis.
性能稳定,低率放电电压平稳,无电压滞后现象。
The setting range of no load voltage step response index for self excited shunt excitation system is put forward.
对自并励静止励磁系统发电机空载阶跃指标提出整定范围。
It has many remarkable advantages such as simple auxiliary circuit, realizing ZVS in the wide load range, no voltage spike and surge of the transformer secondary side and easy to be controlled.
与基本ZVS三电平变换器相比,该变换器具有辅助网络简单、实现零电压范围宽、副边无电压过冲和占空比丢失以及控制方式灵活等优点。
In this paper, soft startup and impact suppression techniques are proposed to guarantee no voltage overshoots or sags in DC bus during startup and grid connection dynamic processes.
本文提出了一种软启动和并网冲击抑制技术以解决启动和并网过程中直流电压大幅波动的问题。
The principle and working process of a FM serial resonance device was introduced and its application no AC withstand voltage test of high voltage XLPE insulated cable was also discussed.
介绍一种调频串联谐振装置的原理及工作过程,并在高压交联聚乙烯(XLPE)绝缘电缆交流耐压试验中应用。
Li battery have the good features of small size, high power density, no memory effect, long cycle life, high voltage and low self-discharge.
锂电池具有体积小、能量密度高、无记忆效应、循环寿命高、高电压电池和自放电率低等优点。
Were there no transformers to adjust the voltage, long-distance transmission of electricity would be impossible.
若无变压器来调节电压,远距离输送电力是不可能的。收藏。
The principle, main design point and no load voltage ratio calculation method of resin insulation dry-type grounding transformer are introduced.
介绍了树脂绝缘干式接地变压器的工作原理、设计要点及空载电压比的计算方法。
No load tap ranges should be selected to provide an adequate low-side bus voltage.
无载分接范围选择应能提供正确的低压侧母线电压。
No load tap ranges should be selected to provide an adequate low-side bus voltage.
无载分接范围选择应能提供正确的低压侧母线电压。
应用推荐