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2022.09.13
解說(shuō)發(fā)電機(jī)組三相負(fù)荷不平衡的原因
發(fā)電機(jī)在運(yùn)行過(guò)程中，如果出現(xiàn)三相負(fù)荷不平衡會(huì)給機(jī)組帶來(lái)運(yùn)行上的障礙，會(huì)導(dǎo)致發(fā)電機(jī)組不能正常進(jìn)行工作。據(jù)小編了解，導(dǎo)致發(fā)電機(jī)組三相負(fù)荷不平衡的原因，燃?xì)獍l(fā)電機(jī)組小編認(rèn)為主要分為以下幾點(diǎn)：
During the operation of the generator, if there is three-phase load imbalance, it will bring operational obstacles to the unit and cause the generator unit to not work normally. According to Xiaobian's understanding, the reasons for the three-phase load imbalance of the generator set are mainly divided into the following points:
（1）影響設(shè)備的運(yùn)行出力，發(fā)電機(jī)設(shè)備容量設(shè)計(jì)是按三相負(fù)荷條件來(lái)確定的，如果三相負(fù)荷不平衡，設(shè)備容量只能以三相負(fù)荷中大一相為限，因此設(shè)備出力降低。
(1) Affecting the operating output of the equipment, the capacity design of the generator equipment is determined according to the three-phase load conditions. If the three-phase load is unbalanced, the equipment capacity can only be limited to the larger one of the three-phase loads, so the output of the equipment will be reduced.
（2）中性線就有電流通過(guò)，低壓供電線路損耗增大。
(2) There is current passing through the neutral line, and the loss of the low-voltage power supply line increases.
（3）造成三相電壓不對(duì)稱(chēng)，使中性點(diǎn)電位產(chǎn)生位移。
(3) Resulting in three-phase voltage asymmetry and displacement of neutral point potential.
（4）中性電流過(guò)大，使配電變壓器運(yùn)行溫度升高，嚴(yán)重時(shí)會(huì)將變壓器燒壞。
(4) If the neutral current is too large, the operating temperature of the distribution transformer will rise, and the transformer will be burnt out in serious cases.
（5）影響發(fā)電機(jī)組的輸出功率，并使繞阻溫度升高。
(5) It will affect the output power of the generator set and increase the winding resistance temperature.
（6）使有的相電壓高，另外的相電壓降低。
(6) So that some phase voltages are high and others are low.
（7）中性線電流過(guò)大，異線可能會(huì)燒斷。
(7) If the neutral line current is too large, the different lines may be burnt out.
用戶(hù)們?cè)谑褂冒l(fā)電機(jī)組時(shí)一定要注意，不能三相不平衡，如果沒(méi)有辦法改變它的輸出功率，只有經(jīng)常掉換接線方式，以防造成發(fā)電機(jī)組的損壞。更多注意事項(xiàng)就來(lái)我們網(wǎng)站http://www.hdlelisa.com咨詢(xún)了解吧。
Users must pay attention to the three-phase imbalance when using the generator set. If there is no way to change its output power, they can only change the wiring mode frequently to prevent damage to the generator set. More precautions come to our website http://www.hdlelisa.com Consult and understand.