对于电阻柜而言,我们要想正确的使用,就需要我们在设计初期就对其严格要求,采用比较合理的设计方案。我们通过设计合理的调速控制主电路,从而更好地避免了电力电子器件的串并联,从而更好的实现了低压控制高压,并且它控制主电路力求比较简单,这样就可以控制电力电子器件,从而在保障最大程度地保证电阻柜可靠性的前提下,更好地节约了电子元件。首先需要了解的是,电阻柜在使用前,应先检查一下外观有无损坏、引线是否生锈、端帽是否松动。然后再用万用表复查一下,其阻值是否与标称阻值相符。在测量前,要选择好合适的 电阻档,并进行电阻档调零。测量时,一只手拿万用表的两表笔(同拿筷子一样),另 一只手捏住电阻柜的中间,用两表笔接触的两引出端,可方便测出其阻值。对于外形较小的电阻柜,可将其放在桌子上,用表笔直接测量。复测后,与标志不符的 电阻柜,一般不要选用。其次对于使用片状电阻的功率小于一般电阻,使用不同功率的片状电阻时,要留有余量。 In the case of the resistance cabinet, we want to use it correctly, and we need to adopt a more reasonable design plan at the beginning of the design. We through reasonable design of speed control of main circuit, to better avoid the series-parallel power electronic devices, so as to better realize the high voltage, low voltage control and it control main circuit is simple, so that you can control power electronic device, thereby ensuring the maximum resistance ark reliability under the premise of better managing electronic components. The first thing that needs to be understood is that the resistance cabinet should be examined before the use of the resistor, whether the appearance is damaged, the lead is rusty, and the cap is loose. Then check with the multimeter to see if it matches the nominal resistance value. Before measuring, choose the suitable resistance and make the resistance zero. Measurement, two pens and a hand multimeter (like a chopstick), another hand hold the middle of resistance ark, use two pens and contact of the two terminal, can be convenient to measure its value. For a small resistance cabinet, place it on a table and measure directly with a pen. After the retest, the resistance cabinet that is not in accordance with the sign is not normally chosen. The second is that when the power of the plate resistance is less than the general resistance, the residual amount is left when the chip resistance of different power is used.