I want to use RMS of three-phase voltage as parameter for prediction. I would like to know how to compute the RMS of voltage of a 3-phase motor ? In fact, I have a 1000 samples for each voltage phase ( http://www.mediafire.com/?savomeetkb7frwa ) and I found a formula to ...
答案解析 查看更多优质解析 举报 意思是问你们国家的供电电压,相位和频率.我国目前的民用供电一般是单相220伏特50赫兹, 也就是: SINGLE PHASE,220VOLTAGE AND 50HZ.所以目前我国的家用电器都是按照这个标准来生产的. 解析看不懂?免费查看同类题视频解析查看解答 相似问题 ...
to prevent the human body induction charge directly to thegate, the gate breakdown. third, each measurement is completed, should be g-sshort-circuit between the poles. this is because the g-s node will charge asmall amount of charge on the capacitor, establish vgs voltage, then measuringhand...
how to check if the crystal's waveform of a circuit is "normal"? ask question asked 7 months ago modified 7 months ago viewed 142 times 1 i have a pcb where i use ecs-240-8-36ckm-tr3 crystal for adum4166 isolator and usb2517-jzx usb hub. my circuit works as expected a...
Another method of measurement can be used to directly measure the voltage between the three output terminals of the U, V, and W pairs of P and N. Still use DC 500V file. From the analysis we can draw the conclusion: when the U phase of the upper and lower arm IGBT Q1, Q2 pipe ...
Before continuing with this tutorial, you should be familiar with the concepts below. Check out the tutorial if you want to learn more! Voltage, Current, Resistance and Ohm's Law How to Use a Multimeter Analog vs. Digital Alternating Current (AC) vs. Direct Current (DC) ...
A common method of tampering is to bypass the measurement sensors outside the energy meter, but there is a way to check for this. By monitoring the imbalance between the neutral current and the three-phase currents in a three-phase energy meter, you can detect current bypass connections. I...
Reaction score 3,030 Trophy points 1,393 Location Minneapolis, Minnesota, USA Activity points 115,810 To detect zero crossings, make use of the 90 degree capacitive phase advance. Detect peaks of the resulting sine wave. The peaks are zero crossings. To detect ...
voltage waveform signal P is inputted are inputted to a voltage phase difference measuring means 4 and an ignition time control function of the ignition device 2 is confirmed from a phase difference of the dummy pulsar voltage waveform signal P and the primary voltage V of the ignition coil 3...
direction to the voltage applied to the input point of the input resistor. The output is truly 180 degrees out of phase with the input. However, as we increase the input frequency the dominant pole response of the amplifier introduces phase shift that increases as the...