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怎样调整发电机组并列机组的逆功现象?

来源:https://www.huannengpower.cn/ 文章作者:济柴环能 发布时间:2022-04-06
在安装燃气发电机组的时候,一定要注意一些问题以及安装注意事项,这样才能更方便的使用机组。下面就是华全动力介绍的燃气发电机组安装注意事项!
When installing the gas generator set, we must pay attention to some problems and installation precautions, so that we can use the set more conveniently. Here are the installation precautions of gas generator set introduced by HuaQuan power!
1、安装地点注意通风,发电机机房远离明火区域;
1. Pay attention to ventilation at the installation site and keep the generator room away from the open fire area;
2、机房周围保持清洁,避免放置酸性、碱性等腐蚀性气体;
2. Keep the surrounding of the machine room clean and avoid placing acidic, alkaline and other corrosive gases;
3、机房内要达到消防要求,配备灭火器等设备;
3. The machine room shall meet the fire-fighting requirements and be equipped with fire extinguishers and other equipment;
4、燃气发电机组外壳一定要有可靠的保护接地,并配置防雷装置;
4. The shell of gas generator set must have reliable protective grounding and be equipped with lightning protection device;
5、发电机与市电的双向开关一定是十分可靠,以防倒送电。双向开关的接线可靠性需经过当地供电部门的检验认;
5. The two-way switch between the generator and the mains must be very reliable to prevent reverse power transmission. The wiring reliability of two-way switch shall be inspected and recognized by the local power supply department;
一般用户对燃气发电机组的安装注意事项了解的很少,即使是了解,操作起来也会有困难,因此遇到不了解的情况的话一定要联系技术人员进行操作。
General users know little about the installation precautions of gas generator set. Even if they do, it will be difficult to operate. Therefore, if they do not know, they must contact technicians for operation.
怎样调整并列机组的逆功现象?
How to adjust the reverse power phenomenon of parallel units?
当两台发电机组空载并列后,会在两台机组之间,产生一个频率差与电压差的问题。并且在两台机组的监视仪表上(电流表、功率表、功率因数表),反应出实际的逆功情况,一种是转速(频率)不一致造成的逆功,另一种是电压不等造成的逆功,其调整如下:
When two generator units are paralleled without load, there will be a problem of frequency difference and voltage difference between the two units. Moreover, the monitoring instruments of the two units (ammeter, power meter and power factor meter) reflect the actual reverse work. One is the reverse work caused by inconsistent speed (frequency) and the other is the reverse work caused by unequal voltage. The adjustment is as follows:
1.频率造成逆功现象的调整:如果两台机组的频率不等,相差较大时,在仪表上(电流表、功率表)显示出,转速高的机组电流显示正值,功率表指示为正功率,反之,电流指示负值,功率指示负值。这时调整其中一台机组的转速(频率),视功率表的指示进行调整,把功率表的指示调整为零即可。使两台机组的功率指示均为零,这样两台机的转速(频率)基本上一致。但是,这时电流表仍有指示时,这就是电压差造成的逆功现象了。
1. Adjustment of reverse work caused by frequency: if the frequencies of two units are different and the difference is large, the instrument (ammeter and power meter) shows that the current of the unit with high speed displays positive value and the power meter indicates positive power. On the contrary, the current indicates negative value and the power indicates negative value. At this time, adjust the speed (frequency) of one unit according to the indication of the power meter, and adjust the indication of the power meter to zero. Make the power indication of the two units zero, so that the speed (frequency) of the two units is basically the same. However, when the ammeter still has indication, this is the reverse power phenomenon caused by voltage difference.
2.电压差造成逆功现象的调整:当两台机组的功率表指示均为零时,而电流表仍然有电流指示(即一反一正指示)时,可调整其中一台发电机组的电压调整旋钮,调整时,视电流表与功率因数的指示进行。将电流表的指示取消(即调整为零),电流表无指示后,这时视功率因数表的指示,把功率因数调至滞后0.5以上即可.一般可调整至0.8左右。
2. Adjustment of reverse work caused by voltage difference: when the indication of the power meter of two units is zero and the ammeter still has current indication (i.e. one reverse and one positive indication), the voltage adjustment knob of one generator unit can be adjusted according to the indication of the ammeter and power factor. Cancel the indication of the ammeter (i.e. adjust it to zero), and after the ammeter has no indication, adjust the power factor to more than 0.5 lag according to the indication of the power factor meter Generally, it can be adjusted to about 0.8.
以上就是为大家介绍的有关燃气发电机组配件的详细介绍,希望对您有所帮助.如果您有什么疑问的话,欢迎联系我们.我们将以专业的态度,为您提供服务https://www.huannengpower.cn
The above is a detailed introduction to the accessories of gas generator set. I hope it will be helpful to you If you have any questions, please contact us We will provide you with professional service https://www.huannengpower.cn

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